Cornelius Van Schaack Roosevelt was born 30 January 1794 in New York City, New York, United States to Jacobus Roosevelt (1759-1840) and Maria Van Schaack (1773-1845) and died 17 July 1871 Oyster Bay, New York, United States of unspecified causes. He married Margaret Barnhill (1799-1861) 1821 .
|Offspring of Cornelius Van Schaack Roosevelt and Margaret Barnhill (1799-1861)|
|Silas Weir Roosevelt (1823-1870)|
|James Alfred Roosevelt (1825-1898)||13 June 1825 New York City, New York, United States||15 July 1898 Mineola, Nassau County, New York, United States||Elizabeth Norris Emlen (1825-1912)|
|Cornelius Van Schaack Roosevelt (1827-1887)|
|Robert Barnwell Roosevelt (1829-1906)||7 August 1829 New York City, Kings County, New York, United States||14 June 1906 Sayville, Suffolk County, New York, United States||Elizabeth Thorne Ellis (1829-1887) Elizabeth Thorne Ellis (1829-1887) Marion Theresa O'Shea (1848-1902)|
|Theodore Roosevelt (1831-1879)||22 September 1831 New York City, New York, United States||9 February 1879 New York City, New York, United States||Martha Stewart Bulloch (1835-1884)|
|William W Roosevelt (1834-1835)|