Dalton was commissioned as a Deputy US Marshal, serving under Judge Parker, and quickly developed a reputation as being a brave lawman.

[1] Based out of Fort Smith, Arkansas, Dalton was involved in a number of shootouts and high risk arrests over a three-year period.

Dalton was buried in Elmwood Cemetery in Coffeyville, Kansas, not far from the graves of his two outlaw brothers, Grat and Bob.

(One can see the graves of Bob, and Grat just to the left of Frank's grave about 30 yards (27 m) back with the original hitching post that they tied their horses to) [4] The actor Robert Lansing played Frank Dalton in the NBC television series Outlaws in a two-part episode "The Daltons Must Die", which aired early in 1961.

[8] Strother Martin was cast in this episode as Charlie Neel and Robert Anderson (1920–1996) as Marshal Heck Thomas.