Leendert followed his father in the brewing business. He also prospered to the point where he was elected alderman for the third ward from 1734 to 1739. His brewery behind the family property on the east side of Market Street was an Albany landmark for much of the eighteenth century. On a number of occasions, he delivered beer for the city government.
This prosperous and politically active brewer was always counted among the city's qualified voters. His status was further documented and memorialized in a set of portraits done about 1720. No other Albany brewer was so favored!
In 1741, he was among the worthies favored with a share in the Sacandaga Patent.
Leendert Gansevoort filed a will in September 1762 - leaving an extensive estate to his wife during her widowhood and then to his two sons and the children of his sister. He died in December 1762 months short of his eightieth birthday. In 1763, his name still appeared on an Albany freeholders list. Leendert's will passed probate that August.
first posted 7/25/03; last revised 11/25/17