I am also related to both of these gentlemen. I balked at the Muhamad Ali connection, but found that one of his ancestor's, John Henry Clay, was the son of a slave & the slave owner, one Henry Clay (Clay-233), US Senator & Secretary of State for 1825. I am related to Winston Churchill through Ralph Allen Sr.(Allen-1301) & to Muhamad Ali through John Throckmorton, MP (Throckmorton-6). I hope this helps in your search. -Brad