|United States House of Representatives from New York's 9th District|
March 4, 1817 – March 3, 1819
|Preceded by||John Lovett|
|Succeeded by||Solomon Van Rensselaer|
|Born||May 6, 1776|
Albany, Province of New York
|Died||April 18, 1851 (aged 74)|
Albany, New York
Jane Lansing (m. 1805)
|Relatives||Stephen Van Rensselaer (half-brother)|
John Lansing, Jr. (father-in-law)
|Alma mater||Columbia College|
Rensselaer Westerlo was born on May 6, 1776 at the Van Rensselaer Manor House in Albany as the son of Catherine Livingston (1745–1810) and her second husband Eilardus Westerlo (1738–1790). Catherine Livingston was the daughter of Philip Livingston (1716–1778), and widow of Stephen Van Rensselaer II, and the mother of Stephen Van Rensselaer. Westerlo's sister, Catherine Westerlo, married John Woodworth.
Westerlo was active in the militia, and served as an aide to Stephen Van Rensselaer and commander of a cavalry regiment in the War of 1812. In 1818 he became commander of New York's 3rd Cavalry Brigade with the rank of Brigadier General.
On May 5, 1805, he married Jane Lansing (1785–1871), daughter of Chancellor John Lansing, Jr.. Together, they had six children:
- Catherine Westerlo (1806–1890)
- Elizabeth Van Rensselaer Westerlo (b. 1816)
- Cornelia Lansing Westerlo (1826–1876)
- Mary Lansing Westerlo (1826–1876)
- Eliardus Westerlo (d. 1859)
- Joanna Westerlo
- Bielinski, Stefan. "Rensselaer Westerlo". exhibitions.nysm.nysed.gov. Retrieved 6 December 2016.
- "Rensselaer Westerlo, former Representative for New York's 9th Congressional District - GovTrack.us". GovTrack.us. Retrieved 6 December 2016.
- "WESTERLO, Rensselaer - Biographical Information". bioguide.congress.gov. Biographical Directory of the United States Congress. Retrieved 6 December 2016.
- Lemire, Paula (26 July 2012). "Albany Rural Cemetery - Beyond The Graves: Rensselaer Westerlo". Albany Rural Cemetery - Beyond The Graves. Retrieved 6 December 2016.
- United States Congress. "Rensselaer Westerlo (id: W000309)". Biographical Directory of the United States Congress.
- Rensselaer Westerlo at Find a Grave
- Van Rensselaer Genealogy and History
|U.S. House of Representatives|
| Member of the U.S. House of Representatives
from New York's 9th congressional district
Solomon Van Rensselaer