▁their ▁son ▁did ▁not ▁marry . ▁In ▁September ▁ 1 7 7 3 ▁while ▁W att ▁was ▁working ▁in ▁the ▁Scottish ▁High lands ▁he ▁learned ▁that ▁his ▁wife , ▁who ▁was ▁pre gn ant ▁with ▁their ▁third ▁child , ▁was ▁seriously ▁ill . ▁He ▁immediately ▁returned ▁home ▁but ▁found ▁that ▁she ▁had ▁died ▁and ▁their ▁child ▁was ▁still born . ▁ ▁In ▁ 1 7 7 5 ▁he ▁married ▁Ann ▁Mac G reg or ▁( d . 1 8 3 2 ). ▁ ▁Fre em ason ry ▁He ▁was ▁In iti ated ▁into ▁Scottish ▁Fre em ason ry ▁in ▁The ▁Glasgow ▁Royal ▁Arch ▁L odge , ▁No . 7 7 , ▁in ▁ 1 7 6 3 . ▁The ▁L odge ▁ceased ▁to ▁exist ▁in ▁ 1 8 1 0 . ▁A ▁Mason ic ▁L odge ▁was ▁named ▁after ▁him ▁in ▁his ▁home ▁town ▁of ▁Glasgow ▁– ▁L odge ▁James ▁W att , ▁No . 1 2 1 5 . ▁ ▁Mur do ch ' s ▁contributions ▁William ▁Mur do ch ▁joined ▁B oul ton ▁and ▁W att ▁in ▁ 1 7 7 7 . ▁At ▁first ▁he ▁worked ▁in ▁the ▁pattern ▁shop ▁in ▁So ho , ▁but ▁soon ▁he ▁was ▁ere ct ing ▁engines ▁in ▁Corn wall . ▁ ▁He ▁became ▁an ▁important ▁part ▁of ▁the ▁firm ▁and ▁made ▁many ▁contributions ▁to ▁its ▁success . ▁ ▁A ▁very ▁able ▁man , ▁he ▁made ▁several ▁important ▁invent ions ▁on ▁his ▁own . ▁ ▁John ▁Griff ith s , ▁who ▁wrote ▁a ▁bi ography