Henry Livingston Jr. was born in Poughkeepsie, New York, on Oct. 13, 1748. The Livingston family was one of the important colonial and revolutionary families of New York. The Poughkeepsie branch, descended from Gilbert, the youngest son of Robert Livingston, 1st Lord of Livingston Manor, was not as well off as the more well-known branches, descended from sons Robert and Philip.