▁Marshall ▁( Oct ober ▁ 1 0 , ▁ 1 7 2 2 ▁– ▁November ▁ 5 , ▁ 1 8 0 1 ) ▁was ▁an ▁American ▁botan ist ▁and ▁plant ▁deal er . ▁ ▁Biography ▁ ▁Hum ph ry ▁Marshall ▁was ▁born ▁at ▁Derby down ▁Hom est ead ▁in ▁the ▁village ▁of ▁Marshall ton , ▁Pennsylvania ▁( with in ▁West ▁Brad ford ▁Township ) ▁on ▁October ▁ 1 0 , ▁ 1 7 2 2 . ▁He ▁was ▁the ▁cousin ▁of ▁botan ists ▁John ▁Bart ram ▁and ▁William ▁Bart ram . ▁Like ▁many ▁early ▁American ▁botan ists , ▁he ▁was ▁a ▁Qu aker . ▁ ▁Marshall ▁received ▁the ▁rud iments ▁of ▁an ▁English ▁education , ▁and ▁was ▁app r entic ed ▁to ▁the ▁business ▁of ▁a ▁st on em ason , ▁which ▁trade ▁he ▁subsequently ▁followed . ▁So on ▁after ▁his ▁marriage ▁in ▁ 1 7 4 8 ▁to ▁Sarah ▁Pen no ck ▁he ▁took ▁charge ▁of ▁his ▁father ' s ▁farm , ▁and ▁about ▁that ▁time ▁began ▁to ▁dev ote ▁his ▁attention ▁to ▁astronom y ▁and ▁natural ▁history , ▁building ▁a ▁small ▁observ atory ▁in ▁one ▁corner ▁of ▁his ▁residence . ▁ ▁He ▁special ized ▁early ▁in ▁native ▁plants , ▁after ▁gain ing ▁his ▁enthus ias m ▁for ▁bot any ▁from ▁John ▁Bart ram . ▁ ▁In ▁ 1 7 6 7 ▁he ▁came ▁into ▁the ▁possession ▁of ▁the ▁family ▁estate , ▁and ▁in ▁ 1 7 7 3 ▁he ▁created ▁a ▁botan ical ▁garden ▁at ▁Marshall ton ▁with ▁both ▁native