Haley Barbour's Roots?

I see a strong physical resembelence (as well as a common family name) between old-time New Jersey Republican U.S. Senator William Warren Barbour and current Mississippi Governor Haley Barbour. But I can't find any record of them being related. Does anyone know if they are? (pictures and poll below the fold)

FYI: Haley was born in Mississippi in 1947. His father was a lawyer. Haley worked on Republican Nixon's (not Mississippi-winning independant George Wallace's) campaign in 1972, perhaps showing Republican roots. The New Jersey senator died in 1943.