ABANDONED. western; main character was a sheriff whose name was Jack Slader.

[Jessaka]

I read it in the 1950s. All I remember is that it was a western, and the main character was a sheriff whose name was Jack Slader. And actually if he is a character in other westerns, as in a series, that would help too.

[Kris]

Not sure if this helps. There's an author "Jack Slade" who wrote westerns in 1950s. His real name is Todhunter Ballard and he wrote under various pseudonyms (Hunter D'Allard, Clay Turner, John Hunter, Sam Bowie, Parker Bonner, Brian Fox, Clint Reno). According to Wikipedia:

Two-Edged Vengeance (1951) aka The Circle C Feud (1952)
West of Quarantine (1953)
High Iron (1953)
Oulaw Brand (1954) as Parker Bonner
Trigger Trail (1955)
Guns of the Lawless (1956)
Trail Town Marshall (1957)
The Marshall from Deadwood (1958) as John Hunter
Trouble on the Massacre (1959)
The Night Riders (1961)
The Long Sword (1962) as Hunter D'Allard
Gopher gold (1962)

[Jessaka]

Thanks so much Kris. This was the name of a sheriff in the book. It was Jack Slader.

[Lobstergirl, au gratin]

Jessaka left the group. Moving to Abandoned.