▁vent il ated ▁causing ▁P neum o con ios is ▁also ▁known ▁as ▁black ▁lung ▁( and ▁even ▁referred ▁to ▁as ▁P - 4 5 ), ] ▁was ▁a ▁fact ▁of ▁life . ▁Rail road ▁worker ▁un ions ▁succeeded ▁in ▁getting ▁rid ▁of ▁the ▁" old ▁man - k iller " ▁link ▁and ▁pin ▁cou pler . ▁ ▁Union ▁organization ▁began ▁at ▁Car son , ▁Louisiana , ▁led ▁by ▁Arthur ▁Lee ▁Em erson ▁and ▁Jay ▁Smith ▁in ▁December ▁ 1 9 1 0 . ▁Other ▁areas ▁such ▁as ▁Lake ▁Charles , ▁Mer ry ville , ▁and ▁Eastern ▁Texas ▁soon ▁followed . ▁They ▁met ▁in ▁Alexand ria ▁in ▁June ▁ 1 9 1 1 ▁to ▁established ▁the ▁Bro ther hood ▁of ▁Tim ber ▁Work ers ▁( B TW ). ▁The ▁Southern ▁L umber ▁Oper ators ' ▁Association '' ▁had ▁been ▁created ▁by ▁member ▁mill s ▁in ▁ 1 9 0 6 ▁to ▁stop ▁any ▁future ▁union ▁organizations . ▁The ▁association ▁took ▁immediately ▁plans ▁to ▁include ▁lock outs , ▁importing ▁strike break ers , ▁h iring ▁the ▁Burn s ▁ag ency , ▁P ink erton ▁detect ives , ▁and ▁other ▁steps ▁with ▁the ▁purpose ▁of ▁destroy ing ▁the ▁union . ▁ ▁John ▁Henry ▁Kir by , ▁that ▁owned ▁the ▁American ▁L umber ▁Company ▁in ▁Mer ry ville , ▁Louisiana , ▁did ▁h ire ▁agents ▁to ▁in fil tr ate ▁the ▁union . ▁Other ▁mill s ▁either ▁imported ▁workers ▁or ▁closed ▁mill s . ▁After ▁the ▁incident ▁at ▁Grab ow ▁sus pected ▁union ▁workers ▁were ▁fired