[Frederic Shonnard & W.W. Spooner (1900)] Mount Pleasant, in the house built by General James Watson Webb.— Seharf, L, 599. 2 It is of interest to record the names of the delegates from Westchester County to the State conventions held for the purpose of from 1842 to 1900 589 The congressional district to which Westchester County belonged was represented at Washington by William Nelson, of Peekskill, from 1847 to 1851; Jared V. Peck, of Rye, from 1853 to 1855; and John II. Haskin, of Westchester, from 1857 to 1861. In 1817 the first division of Westchester County into assembly dis-tricts was made, two districts being created, to which a third was added in 1858. The late Judge William II. Robertson began his pub-lic career as a member of the assembly from Westchester County in 1849 and 1850. He also served one term as State senator (1854-55), and in 1850 took his seat on the county bench, where he continued until 1868. He was one of the Lincoln presidential electors in 1800. The total population of Westchester County in 1860 was 99,497 — all