Born at Cincinnati Nov. 18, 1842; educated in New York city; received the degree of master of arts at Union College, Schenectady, New York. Einstein was a representative from New York city in the Forty-sixth Congress; was the Republican candidate for mayor of New York in 1892, receiving the greatest number of votes ever polled for the mayoralty nominee of that party; he acted as commissioner and treasurer of the department of docks from 1895 to 1898, and was a director of the Mt. Sinai Hospital from 1876 to 1878.