Lewis Sheridan Leary
Lewis Sheridan Leary , an AfricanAmerican harnessmaker from Oberlin, Ohio, joined John Browns unsuccessful raid on Harpers Ferry, where he was killed. He was the first husband of Mary Patterson. By her second marriage to Charles Henry Langston, she became the future maternal grandmother of poet Langston Hughes.
Learys father was a free born AfricanAmerican harnessmaker. Lewis Leary was born at Fayetteville, North Carolina. His paternal grandparents were an Irishman, Jeremiah OLeary, who fought in the American Revolution under General Nathanael Greene, and his wife of African, European and Native American descent.
Source: Wikipedia