James Austin Underhill was born on 23. Aug. 1823 at New York City, New York County, New York. He was the son of
Henry Underhill and
Rebecca Hallett. James Austin Underhill married
Catherine Hegeman, daughter of
Jeremiah Hegeman and
Rebecca Hegeman, on 23. Aug. 1848 at New York City, New York County, New York. James Austin Underhill was shown in the census on 11. Jul. 1860 as a clerk.
James Austin Underhill and
Catherine Hegeman appeared on the census of 11. Jul. 1860 at Brooklyn, Kings County, New York; personal property 1,200.00.
James Austin Underhill and
Catherine Hegeman appeared on the census of 20. Jun. 1870 at Brooklyn, Kings County, New York; real estate value 7,000.00. James Austin Underhill was shown in the census on 20. Jun. 1870 as a bookkeeper in a bank. He died in 1894.