William M. Dalton

Mason Frakes "Bill" Dalton
Born	Mason Frakes Dalton 1863 (1863) Cass County, Missouri, United States
Died	June 8, 1894(1894-06-08) (aged 30–31) Pooleville, Oklahoma, United States
Cause of death	Gunshot wound
Resting place	Turlock Memorial Park 37°29′47″N 120°51′54″W / 37.49639°N 120.86500°W / 37.49639; -120.86500 (Bill Dalton Burial Site)
Nationality	American
Other names	William Marion Dalton
Occupations	Bank & Train Robbery Old West Outlaw
Spouse(s)	Jane "Jennie" Bliven Mary Louisa Blaylock
Children	Charles Coleman "Chubb" Dalton Grace M. Dalton Sarah "Sallie" Jane Dalton
Parents	James Lewis Dalton Adelaine Lee Sullivan Younger
Allegiance	Wild Bunch
Criminal charge	Bank robbery, train robbery

Mason Frakes Dalton (1863 – June 8, 1894), also known as William Marion "Bill" Dalton, was an outlaw in the American Old West. He was the co-leader of the Wild Bunch gang and with his brothers Gratton, Bob and Emmett Dalton was a member of the Dalton Gang.