Nation Homer Plessy, of ‘separate but equal’ ruling, pardoned for riding whites-only train in 1892 January 5, 2022January 5, 2022 N'dea Yancey-Bragg and Greg Hilburn, USA TODAY Comments Off on Homer Plessy, of ‘separate but equal’ ruling, pardoned for riding whites-only train in 1892 Homer Plessy was pardoned more than a century after his conviction for riding a whites-only train helped institutionalize discrimination for decades.