Odessa Grady Clay

Odessa Lee Clay was the mother of threetime World Heavyweight Champion Muhammad Ali and Rudolph Valentino Clay, now Rahman Ali and grandmother of Laila Ali. She married Cassius Marcellus Clay, Sr. in the 1930s and worked for some time as a household domestic to help support her young children.

She was born in Hopkins County, Kentucky, one of six children of John Lewis OGrady and Birdie B. Morehead. Her paternal grandfather was a white Irishman named Abe OGrady, who emigrated to the United States from Ennis, County Clare, Ireland, soon after the Civil War and married a daughter of Lewis and Amanda J. Mandy Walker of Todd County, Kentucky. Her maternal grandfather, Tom Morehead, was the son of a white Morehead and a slave named Dinah. Morehead served in the 122nd USCT.

Source: Wikipedia