Found this information from over50vegas.com. Shows here that the Elardi family owned the Pioneer Club/New Pioneer Club from about 1967-until New Years of 1982.

"John Elardi- Brothers John and Tom Elardi were part of the Famous Pioneer Club. Their mother, Margaret Inez Elardi, owned the Famous Pioneer Club from June 29, 1967 to December 31, 1982."
https://over50vegas.com/Casino_Owners_Photo.html

(Picture from over50vegas.com)