Jacob Westervelt (sheriff)
Jacob Westervelt (1794–1881) is often confused with his brother-in-law John Jacob V.B. Westervelt (1805–1866), who was a Deputy Sheriff under him, and subsequently High Sheriff of New York City himself too (1846–1849), as well as Assistant Alderman from the 16th Ward (1844–1846). Another namesake is Jacob Aaron Westervelt (1800–1879), the shipbuilder, Alderman from the 13th Ward and later Mayor of New York City (1853–1855).
Aaron of Neustadt
Aaron of Neustadt was an Austrian Talmudist who with Shallum and Jaekel of Vienna formed a triumvirate of Talmudic scholars in Austria at the end of the fourteenth and beginning of the fifteenth century; uncle and chief instructor of Isserlein, who frequently alludes in his works to the decisions and opinions of his teacher. Jacob Mölln (Maharil) also refers to him and his colleagues. Aaron suffered the death of a martyr, at Vienna, on 13 March 1421. He wrote a digest, "Hilkot Niddah," which is mentioned by Isserlein. A collection of sermons by Aaron is now known only through three citations in the works of Jacob Mölln and of Isserlein.