John Isaac Van Alen

Baptized as Johannes (Dutch for John), he was the brother of Congressman James I. van Alen and the half-brother of President Martin Van Buren.

VAN ALEN, James Isaac, (1776 - 1870)

VAN ALEN, James Isaac, (half brother of Martin Van Buren), a Representative from New York; born in Kinderhook, Columbia County, N.Y., in 1776; attended the common schools; city clerk of Kinderhook 1797-1801; member of the State constitutional conventions in 1801 and 1803; justice of the peace 1801-1804; member of the State assembly in 1804; surrogate of Columbia County 1804-1808 and 1815-1822; elected as a Republican to the Tenth Congress (March 4, 1807-March 3, 1809); died in Newburgh, N.Y., on December 23, 1870; interment in Kinderhook Cemetery, Kinderhook, N.Y.

Source: http://bioguide.congress.gov/scripts/biodisplay.pl?index=V000011