In 1785, Abraham Leggett re])resented the borough and Lewis Morris the manor, and in that year the tax on Morrisania was £1 lis. llcZ. and on Westchester £9 10s. 4d. Prior to 1786 the parish had supported the poor, and in that year. Lake Hunt being supervisor, provision was made for adjusting the accounts of the church wardens relative to support of the poor. In 1787 Israel Underbill represented the town in the County Board and continued as such until 1802. In 1791 Morrisania was deprived of representation and made a part of the town of Westchester. Westchester township was erected in 1788.

The jail and court-house, which was formerly located at Westchester village, near the site of St. Peter's Church, was burned in 1790, and the supervisors of the county allowed the trustees of the village £70 therefor. In 1802 the number of ta.xable inhabitants was 185, and the total valuation of real and personal property $696,822. Captains Ferris, of Westchester, and Berrian, of Fordham, commanded two town military companies. From 1802 till 1816 Benjamin Ferris was the supervisor; from 1816 to 1818 Basil J. Bartow succeeded him, but from 1819 to 1828 Ferris continued to represent the town. In the latter year the aggregate assessed value of property in the town had increased to $838,010, and the number of taxable inhabitants to 229. Israel H. Watson was supervisor from 1829 to 1832, in which year Asiatic cholera prevailed in the township and the sum of $88.52 was expended by the Board of Health in suppressing the disease. In 1833-34 Augustus Huestace was both supervisor and justice of the peace; but in 1835 Israel H. Watson returned to the board. In that year William Barker, of Westchester, who for twenty-eight years had been clerk of the Board of Supervisors, resigned, and the board passed a vote of thanks for his faithful services.