Thomas Jefferson McKean was born 21 August 1810 in Burlington, Bradford County, Pennsylvania, United States to Robert McKean (1784-1827) and Martha Wilson (1786-1862) and died 19 April 1870 Marion, Linn County, Iowa, United States of unspecified causes. He married Sarah P Gray (1820-1911) 4 September 1848 in Marion, Linn County, Iowa, United States.
|Offspring of Thomas Jefferson McKean and Sarah P Gray (1820-1911)|
|Thomas McKean (1849-1849)|
|Louis Linn McKean (1850-1923)|
|Robert J McKean (1853-1854)|
|Helen M McKean (c1853-1885)|
|James B McKean (c1858-1899)|