Claim: US Senator John Conness (born in Ireland on September 22, 1821) voted to abolish slavery.
Evidence: Born in Abbey, County Galway, Ireland, on September 22, 1821, Conness was the youngest of fourteen children. He introduced a bill to establish Yosemite National Park and voted to abolish slavery. 
He introduced a bill to establish Yosemite National Park and voted to abolish slavery. (1821-09-22)September 22, 1821
Abbey, County Galway, Ireland