. ▁Bl anch ard ▁House , ▁ 3 1 7 ▁Main ▁Street ▁— ▁ 1 8 5 5 . ▁ ▁One ▁of ▁the ▁most ▁elaborate ▁and ▁fin ely - d etailed ▁Italian ate ▁resid ences ▁on ▁the ▁Maine ▁coast , ▁it ▁was ▁built ▁by ▁S ylvan us ▁Bl anch ard ▁( b . ▁ 1 7 7 8 , ▁d . ▁ 1 8 5 8 ), ▁a ▁highly ▁successful ▁ship builder . ▁The ▁design ▁is ▁by ▁Charles ▁A . ▁Alexander , ▁who ▁also ▁executed ▁the ▁Ch est nut ▁Street ▁Method ist ▁Church ▁in ▁Port land . ▁It ▁replaced ▁a ▁building ▁that ▁is ▁p ict ured ▁in ▁the ▁oldest ▁image ▁( a ▁drawing ) ▁of ▁a ▁Y arm outh ▁street ▁scene , ▁drawn ▁between ▁ 1 8 3 7 ▁and ▁ 1 8 5 5 ▁Captain ▁R ue ben ▁M err ill ▁House , ▁ 2 3 3 ▁West ▁Main ▁Street ▁— ▁ 1 8 5 8 . ▁Thomas ▁J . ▁S par row , ▁the ▁first ▁native ▁Port land ▁architect , ▁designed ▁this ▁three - story ▁Italian - style ▁house . ▁M err ill ▁was ▁a ▁well - known ▁sea ▁captain , ▁who ▁went ▁down ▁with ▁his ▁ship ▁off ▁San ▁Francisco ▁in ▁ 1 8 7 5 . ▁F ew ▁changes ▁have ▁been ▁made ▁in ▁the ▁building , ▁because ▁it ▁did ▁not ▁leave ▁the ▁possession ▁of ▁the ▁M err ill ▁family ▁between ▁then ▁and ▁ 2 0 1 1 ▁ ▁Another ▁notable ▁building ▁is ▁Camp ▁Hamm ond ▁( 1 8 8 9