▁New ▁York . ▁Jackson ▁settled ▁on ▁the ▁eastern ▁portion ▁of ▁his ▁land ▁along ▁Gran ny ' s ▁Brook ▁at ▁the ▁site ▁of ▁what ▁would ▁later ▁become ▁the ▁Ross ▁Rib bon ▁Factory ▁on ▁Park ▁He ights ▁Avenue . ▁ ▁Iron ▁ore ▁at ▁the ▁time ▁was ▁so ▁pl ent iful ▁that ▁it ▁could ▁be ▁collected ▁off ▁the ▁ground ▁at ▁the ▁nearby ▁Dick erson ▁Mine ▁in ▁Mine ▁Hill . ▁At ▁Jackson ' s ▁For ge , ▁ore ▁would ▁be ▁processed ▁into ▁bars ▁that ▁would ▁then ▁be ▁transport ed ▁to ▁Pat erson ▁and ▁other ▁industrial ▁areas ▁towards ▁the ▁east . ▁The ▁passage ▁of ▁the ▁Iron ▁Act ▁by ▁the ▁British ▁Parliament ▁led ▁to ▁financial ▁difficulties , ▁leading ▁Jackson ▁into ▁bank rupt cy ▁in ▁ 1 7 5 3 , ▁with ▁all ▁of ▁his ▁property ▁and ▁belong ings ▁sold ▁off ▁at ▁a ▁Sher iff ' s ▁sale . ▁ ▁Qu aker ▁Hart sh or ne ▁Fitz ▁Rand olph ▁purchased ▁Jackson ' s ▁property ▁and ▁an nex ed ▁to ▁his ▁own ▁existing ▁property , ▁which ▁would ▁later ▁become ▁part ▁of ▁Rand olph ▁Township . ▁ ▁D over ▁was ▁incorpor ated ▁as ▁a ▁town ▁on ▁April ▁ 1 , ▁ 1 8 6 9 , ▁within ▁Rand olph ▁Township ▁and ▁became ▁fully ▁independent ▁as ▁of ▁March ▁ 5 , ▁ 1 8 9 6 . ▁ ▁The ▁town ▁char ter ▁was ▁am ended ▁in ▁ 1 8 7 5 . ▁On ▁May ▁ 7 , ▁ 1 8 9 6 , ▁D over ▁was ▁rein cor por ated ▁as ▁a ▁city