▁Irish ▁pat rol ▁vessel ▁Mu ir ch ú ) ▁from ▁the ▁river ▁L iff ey . ▁The ▁" Hel ga ", ▁which ▁had ▁sa iled ▁from ▁D ún ▁La og ha ire ▁earlier , ▁would ▁go ▁on ▁to ▁bomb ard ▁Liber ty ▁Hall ▁the ▁following ▁day . ▁As ▁only ▁the ▁top ▁lo ft ▁of ▁the ▁mill ▁happened ▁to ▁be ▁in ▁the ▁gun bo at ' s ▁field ▁of ▁fire , ▁Capt . ▁O ’ By r ne ▁moved ▁his ▁men ▁down ▁to ▁the ▁third ▁floor ▁for ▁safety ▁and ▁because ▁the ▁v antage ▁was ▁just ▁as ▁good ▁from ▁there . ▁ ▁The ▁next ▁day , ▁Wed nes day ▁ 2 6 ▁April , ▁soldiers ▁of ▁the ▁Sher wood ▁Forest ers ▁Regiment ▁sent ▁to ▁D ún ▁La og ha ire ▁from ▁England , ▁made ▁their ▁way ▁into ▁the ▁city ▁by ▁way ▁of ▁North umber land ▁Street ▁and ▁Mount ▁Street . ▁Order ed ▁by ▁Major - General ▁William ▁L owe ▁to ▁take ▁Mount ▁Street ▁Bridge ▁“ at ▁all ▁costs ”, ▁the ▁fighting ▁that ▁en su ed ▁there ▁would ▁result ▁in ▁two ▁third s ▁of ▁British ▁cas ual ties ▁for ▁the ▁entire ▁week , ▁despite ▁the ▁Vol unte ers ▁being ▁heavily ▁out number ed . ▁Although ▁the ▁main ▁action ▁of ▁the ▁battle ▁occurred ▁at ▁ 2 5 ▁North umber land ▁Road ▁and ▁Cl an will iam ▁House , ▁the ▁other ▁out posts ▁of ▁the ▁ 3 rd ▁Battalion ▁played ▁their ▁part ▁too . ▁According ▁to ▁one ▁witness , ▁Jack ▁O ' She a , ▁" d uring