aaron willard was an entrepreneur, an industrialist, and a designer of clocks who worked extensively at his roxbury, massachusetts, factory during the early years of the united states of america. he was born in grafton, united states, in 1757 and died in 1844. willard developed his career conjunctively with his three brothers, who became celebrated horologists too. both brothers moved to roxbury, boston, massachusetts, where they developed one of the first modern american industries, independently from each other. simon and aaron willard's clocks were the first economically accessible timepie…