Football nerds: What is the single game rushing record for a white running back?

Peyton Hillis just hung 184 yds on the Pats last weekend. That got me and my buddy wondering about white running backs in the NFL, because there really aren’t many anymore. The last decent white RB was probably Mike Alstott, and that was 10 years ago. Does anyone know the single game rushing record for a white RB? Is it Hillis? Or do we have to go back to the 70s?

Please don’t call me a racist for wondering this.