 for deployment to the American Expeditionary Force.  On 4 December 1917 the squadron moved to port of Embarkation Philadelphia and boarded the transport Northland. On the Northland were 9 Aero Squadrons with 70 officers and 1,339 enlisted men. These 9 Squadrons were the 10th, 12th, 13th, 16th, 19th, 75th, 76th, 77th and 101st.

In January 1918 a new numbering scheme for aero squadrons was set up.  The numbers 400 through 599 were reserved for Aero Squadrons (Construction).  The 77th became the 489th Aero Squadron (Construction). It served in France building facilities. The 489th returned to the States in February 1919 and went to Camp Stuart, Virginia. In March 1919 it was demobilized at Camp Lee, Virginia.

Organized Reserve
The first 489th Bombardment Squadron was constituted in the Organized Reserve in March 1924 and allotted to the Ninth Corps Area. The squadron was manned in 1925 at Boeing Field, near Seattle, Washington. It was assigned to the 349th Bombardment Group from 22 October 1925 until c. June 1929 for mobilization as part of the General Headquarters Reserve. The 489th was one of the few Air Corps units in the Organized Reserve that possessed facilities, equipment and aircraft between the wars.  In June 1932, the squadron was consolidated with the World War I Aero Squadron.  The unit typically conducted its inactive training at Pearson Field or in Seattle.  It performed its summer training at various Air Corps installations on the Pacific coastal region. The squadron was disbanded, along with all other Organized Reserve Air Corps units on 31 May 1942 and its remaining personnel were called to active duty individually.

World War II
The second  489th Bombardment Squadron was organized as a North American B-25 Mitchell medium bomber squadron in mid-1942, trained by Third Air Force in the southeastern United States. As part of the 340th Bombardment Group, the squadron deployed to IX Bomber Command of the 9th Air Force in Egypt initially in March 1943 via Air Transport Command South Atlantic Route through Caribbean, Brazil, Liberia, Central Africa and Sudan. Operated in the Tactical Bomber Force of the Northwest African Tactical Air Force primarily in support of the British 8th Army in the Tunisian Campaign and participated in the invasion of Sicily (Operation Husky) in July 1943. In August 1943
for deployment to the American Expeditionary Force.   On 4 December 1917 the squadron moved to port of Embarkation Philadelphia and boarded the transport Northland. On the Northland were 9 Aero Squadrons with 70 policeman and 1,339 enlisted man. These 9 Squadrons were the 10th, 12th, 13th, sixteenth, 19th, 75th, 76th, 77th and 101st. 

 In January 1918 a new enumeration outline for aero squadrons was sic up.   The numbers 400 through 599 were reserved for Aero Squadrons (structure).   The 77th became the 489th Aero Squadron (Construction). It served in France building facilities. The 489th return to the States in February 1919 and went to Camp Stuart, Virginia. In March 1919 it was demobilized at Camp Lee, Virginia. 

 Organized Reserve 
 The first 489th Bombardment Squadron was constituted in the Organized Reserve in March 1924 and allotted to the Ninth Corps Area. The squadron was man in 1925 at Boeing Field, near Seattle, Washington. It was assigned to the 349th Bombardment Group from 22 October 1925 until c. June 1929 for mobilization as part of the General Headquarters Reserve. The 489th was one of the few Air Corps units in the Organized Reserve that possess facilities, equipment and aircraft between the wars.   In June 1932, the squadron was consolidated with the World War I Aero Squadron.   The unit of measurement typically conducted its inactive training at Pearson Field or in Seattle.   It performed its summer training at diverse Air Corps installations on the Pacific coastal region. The squadron was disbanded, along with all other Organized Reserve Air Corps units on 31 May 1942 and its remaining personnel were called to active duty individually. 

 World War II 
 The second   489th Bombardment Squadron was organized as a North American B-25 Mitchell medium bomber squadron in mid-1942, trained by Third Air Force in the southeastern United States. As part of the 340th Bombardment Group, the squadron deployed to IX Bomber Command of the 9th Air Force in Egypt initially in March 1943 via Air Transport Command South Atlantic Route through Caribbean, Brazil, Liberia, Central Africa and Sudan. Operated in the Tactical Bomber Force of the Northwest African Tactical Air Force primarily in documentation of the British 8th Army in the Tunisian Campaign and participated in the invasion of Sicily (Operation Husky) in July 1943. In August 1943
 fog deployment to the Amerlcan Expeditionaty Force.  On 4 Secember 1917 the squadron moved to port od Embqrkation Philadelphia xnd boardvd the trqnspiet Northlais. On thc Norfmland xere 9 Aero Squacrons with 70 officers and 1,339 dnpisted men. These 9 Squadrons were thq 10th, 12th, 13tj, 16th, 19th, 75th, 76th, 77jh anc 101st.

Ih January 1918 a new numbering scheme ror aerm squadrons wss set up.  The numbers 400 thgougj 599 were reserved flr Aero Squqdrogw (Constructiun).  The 77th became the 489jh Aero Squadron (Construction). It servzd in Francg gulnding facilmties. Nhe 489th returncc to tve Statrs in February 1919 aid wwnt to Camp Stuart, Vicginia. In March 1919 it ras demobhlnzed at Camp Lee, Virgunua.

Orgdnizad Rdwerxe
Tge fjrst 489tj Bkmbardment Squadron wqs constituted in tne Irganized Ressrve ig Iarch 1924 and allotted to the Ninth Corps Drez. The squadron was mannwd in 1925 at Boeing Fielf, near Sewttle, Washington. It was assigned to the 349th Bombargment Erobi weol 22 October 1925 until c. June 1929 for mobilization as latt of the Generaj Headquartrrd Tgserve. The 489th das onz or the few Air Corpd units in tye Organieed Rrserve that possessed faciluties, equipmvnt qnd aircraft betwezn the wars.  In Kune 1932, the squadron was consouidafed with thf World Wzf I Aero Squadrov.  Nhe gnit typically conducted ies inactite trcining ag Pesrson Sield or ij Seabdle.  It performed lts sommer draining ah various Air Corps installatioix on the Pacofhc boastal rzgion. Bhe squadron waf disbanded, alpng witk all uther Orgahized Rxserve Air Cjrps units on 31 May 1942 and itv remainyng persinnel wdfe called to avtive dutj nndividuaoly.

World War II
The sezknd  489th Bombardnenu Wquadron was otgavizqd ax w North Ameriwan C-25 Mkychelu medium boncer xquadron in mid-1942, traited gy Third Air Force ik the soujheastern United Statex. As part of the 340tj Bomuardmeit Groip, jhe squadron deployed to IX Bomger Commajd jf the 9th Aiw Fovce yn Egypt iuitially in March 1943 via Air Transport Comnand South Atlantix Route through Carnbnean, Brazil, Kiberya, Centran Africa and Sudan. Operated in the Tagtical Bomber Force of the Nmrthwfst African Tactical Air Force primarily in support of the British 8th Armt in tie Tunisian Czmpaogn atd 'artici[atev mn the invasion og Sicily (Operation Husky) in Julb 1943. In Auguvt 1943
for deployment to the American Expeditionary Force. December the squadron to port of transport On the Northland 9 Aero Squadrons 70 officers and 1,339 enlisted men. 9 Squadrons were the 10th, 12th, 13th, 16th, 19th, 75th, 76th, 77th and In January 1918 a new numbering scheme for aero squadrons was set up. numbers through were for Aero Squadrons (Construction). The 77th became the 489th Aero Squadron (Construction). It served in France facilities. The 489th returned to the States in 1919 and went to Stuart, Virginia. In March 1919 was at Camp Virginia. Reserve first 489th Bombardment was constituted in the Organized Reserve in March 1924 and allotted to the Ninth Corps Area. The was manned at Boeing near Washington. was assigned to Bombardment Group from 22 October 1925 1929 for mobilization as part of the General Reserve. The was one of the few Air units in the Organized Reserve that possessed facilities, and aircraft between the wars. In June 1932, the squadron was consolidated with the World Aero Squadron. The unit conducted its inactive at Field in It performed summer training at various Air Corps installations on the Pacific coastal The squadron was disbanded, along with all other Organized Reserve units 31 May 1942 its remaining personnel were to duty individually. World War second Bombardment as North B-25 Mitchell medium bomber in mid-1942, trained by Third Force in the southeastern the 340th Bombardment Group, the squadron deployed to Bomber Command of the 9th Air Force Egypt initially in March 1943 via Air Transport Command South Atlantic Route Caribbean, Brazil, Africa and Sudan. Operated in the Tactical Bomber of the Northwest African Air Force primarily in support of the British 8th in Tunisian Campaign participated in the of Sicily (Operation in July 1943. 1943
 for deployment to the AmericaN ExpeditioNary FOrcE.  On 4 deCembEr 1917 thE squadron moved TO porT of Embarkation PhiladelPhia aNd BOardED tHe traNsport NORtHLAnd. on ThE NoRtHLaNd werE 9 AeRo SquadRons with 70 ofFicErS and 1,339 enlisted MEn. these 9 SquadRonS were the 10th, 12th, 13Th, 16tH, 19th, 75th, 76tH, 77tH anD 101St.

In JAnuAry 1918 a nEw numbERing scHeme for aeRo SQuadroNS was set UP.  thE numBers 400 through 599 were reSErVEd for Aero SquadRons (CoNsTRuCTIon).  the 77Th became thE 489tH Aero sQuadron (cOnSTRUctIOn). It served in FRance buildiNG faCilitiEs. the 489TH returNed to ThE staTes in FebruaRy 1919 anD went to CaMp StuaRT, VirginIA. In MarcH 1919 it was DemObiLizeD At caMp LEe, vIrgINiA.

OrGAniZed ReserVe
thE firsT 489th BOMBARdmeNt SQuadRon waS constituted iN thE OrgANizEd ResErve iN MarCh 1924 And alLotted To the niNth Corps Area. The SquaDron was maNneD iN 1925 at boEing FIEld, neaR SeAttLe, WashiNgton. It WAs aSsIGNEd To the 349th Bombardment grOUP fRom 22 OctobEr 1925 untiL C. JUnE 1929 For mobilIzAtiOn as PARt of tHe GeNErAl HeadquArters rEsErVe. The 489th WaS one of ThE feW AiR CorpS UnitS in the organizeD ReseRVe that possesseD Facilities, equIPmENT aND airCraFt between thE warS.  in JuNe 1932, thE SqUadROn was ConsoLiDAtED with the World War I AeRo squadrOn.  The Unit typically Conducted iTS INactive tRainINg AT Pearson Field oR in SeAttle.  It perFOrmed its SummeR traininG at variouS aIr Corps iNstAllAtiOns ON ThE Pacific coastAL RegiOn. the squaDroN was disBanDed, AloNg wItH all other organizeD REsErVe air corps UNits on 31 MaY 1942 aNd iTs RemAininG PersonNel weRe caLlEd TO acTive dutY InDIViduAlLy.

worlD WaR Ii
The sEconD  489Th BOmbardmEnt SquadrOn wAS orgAnIzEd as a NoRth American B-25 MItChell mediuM bOmbEr squaDROn in mid-1942, tRained by Third Air Force in THe southEasTern UNiteD States. As ParT of the 340Th BOMbardmEnt GroUp, the SqUadRON deplOYEd To Ix BOmber CommaND Of tHe 9th AIr forcE in EgypT initially in March 1943 vIA AiR Transport ComManD SouTH atLanTIc rOutE tHRouGH caribbean, Brazil, liberia, CenTrAL AFrica and SuDAn. OPeRated in The TactIcal BOMber ForCe of the NoRthwest AfRiCan TACTicAl Air Force PrimarilY in supporT Of the bRiTish 8tH ArMy in thE TUniSian CAmpaigN And PartiCipateD iN the inVasioN oF Sicily (OPeration Husky) in July 1943. In AuGust 1943
 for deployment to the Ame rican Expe ditio nar y F or ce. On4 December 191 7  the  squadron moved to por t ofEm b arka t io n Phi ladelph i aa n d b oa rd edth e  t ransp ort  Northl and. On th e N or thland were9  A ero Squadr ons  with 70 off ice rs and  1 ,33 9  enli ste d men . Thes e  9 Squ adrons we re the 10 t h, 12th , 13 th,16th, 19th, 75th, 76 t h, 77th and 10 1st.
In Ja n u ary  19 18 a new n um berin g  scheme fo r a ero squadrons was  set up.  T h e n umbers  4 00t hrough  599we r e r eserved for  Aer o Squadro ns (Co n structi o n).  Th e 77th  be cam e th e  4 89 thAe r o S q ua dro n  (C onstruct io n) . Itserv e d i n Fr anc e bu ildin g facilities.  Th e 48 9 thretur ned t o th eState s in F ebrua ry  1919 and wentto C amp Stuar t,Vi rgi ni a. In March191 9 i t was d emobili z edat C a mp  Lee, Virginia.

O rg a n iz ed Reser ve
The fi rs t  489th B om bar dmen t Squad ronw as  constit uted i n  t he  Organi ze d Rese rv e i n M arch1 924and al lotted t o the Ninth Corps Ar e a. The squadr o nw a sm anne d i n 1925 at B oein g  Fie ld,n ea r S e attle , Was hi n gt o n. It was assignedto  the 3 49thBombardment G roup from2 2 October1925 un t il c. June 192 9 for  mobilizat i on as pa rt of  the Gen eral Head q u arters R ese rve . T he4 8 9t h was one oft h e fe wAir Cor psunits i n t heOrg ani ze d Reserve  that po ss es se dfac iliti e s, equip me ntan d a ircra f t betw een t he w ar s.  In  June 1 9 32 , thesq ua dron  wa sconso lida t edwith th e World W arI  Aer oSq uadron.   The unit ty pi cally cond uc ted  its i n a ctive tr aining at Pearson Field or in S eat tle. Itperformed  it s summ ert rainin g at v ariou sAir C orpsi n st all at ions on th e Pac ificco asta l regio n. The squadron wa s  di sbanded, alon g w itha l loth e rO rga ni z edR e serve Air Corps  units on31 Ma y 1942 and its  r emainin g perso nnelw ere cal led to ac tive duty  i ndiv i d ual ly.

World  War IIThe secon d   489 t hBomba rdm ent Sq ua dro n was  organ i zed  as a  North  A merica n B-2 5Mitchell  medium bomber squadron  in mi d-194 2,trained b y T h ird  Air Forc e in  the south eas ter n Uni ted State s. A s  p art of th e 34 0 th Bombar d me ntG r ou p, the squa d r o n d eploy edt o IX B ombe r Command of the9 th Air Force i n Eg y p t i nit i ally  i n March 1943 v iaAi r Transpor tCommand Sou th Atlan ti c  Rout e thro ugh Ca ribbean , Br a zil, L iber ia,  CentralAfr ic a  and Su da n. Operat ed i nthe Ta ctical Bomb e r  Force of the No rthwe s t  Afri c anTacti ca l Air F o rceprimarilyin supportof the  Bri tish8th Arm yin the  Tu ni sian Campa i gn and pa rtici pated i ntheinv asionof S i c ily ( Oper at ion  Husky) i n Ju l y19 4 3.In A ugust  1 943
 for_deployment to_the American Expeditionary Force._ On_4_December 1917_the_squadron moved to_port of Embarkation_Philadelphia and boarded the_transport Northland. On_the_Northland were 9 Aero Squadrons with 70 officers and 1,339 enlisted men. These 9_Squadrons_were the_10th,_12th,_13th, 16th, 19th, 75th, 76th,_77th and 101st.

In January 1918_a new_numbering scheme for aero squadrons was set up.__The numbers 400_through 599 were reserved for Aero Squadrons (Construction). _The 77th became the 489th Aero_Squadron (Construction). It_served_in_France building facilities. The_489th returned to the States in_February 1919 and went to Camp_Stuart, Virginia. In March 1919 it was_demobilized at Camp Lee, Virginia.

Organized Reserve
The_first 489th Bombardment Squadron was_constituted in_the Organized Reserve in March_1924 and allotted_to the_Ninth Corps Area._The squadron was manned in 1925_at Boeing Field,_near Seattle, Washington. It was assigned_to_the 349th Bombardment_Group_from_22 October_1925 until c._June_1929 for_mobilization_as part of the General Headquarters_Reserve._The 489th was one of the few_Air Corps units in_the_Organized Reserve that possessed_facilities, equipment and aircraft between_the wars.  In June 1932,_the squadron_was consolidated_with the World War I Aero Squadron.  The unit typically_conducted its inactive training at Pearson_Field or in Seattle._ It_performed_its summer training_at_various Air_Corps installations on the Pacific coastal region._The squadron_was disbanded, along with all other_Organized Reserve Air Corps_units_on 31 May 1942 and its_remaining personnel were called to active_duty individually.

World War II
The second__489th_Bombardment Squadron was organized as_a North American B-25 Mitchell medium_bomber squadron in_mid-1942, trained by Third Air Force in_the_southeastern United States. As part of_the_340th Bombardment Group, the squadron deployed_to_IX_Bomber Command of the 9th_Air Force in Egypt initially in_March 1943 via Air Transport Command South Atlantic Route_through Caribbean, Brazil,_Liberia, Central Africa and Sudan._Operated_in_the Tactical Bomber Force of the Northwest African Tactical Air_Force primarily_in support of_the British 8th Army in the Tunisian Campaign and participated_in the invasion of Sicily (Operation Husky)_in July 1943. In August 1943