In federal prisons, clinical psychologists are hired to counsel inmates and provide mental health therapy. The salary is assigned according to a federal pay scale, with options at GS-11 through GS-12, which ranges from $57,982 to $90,344 a year.
Howard's brother, Clint, also appeared on the show as Leon, the young, sandwich-eating cowboy who showed up in five episodes of the series. Jim Nabors, who played good-hearted gas station attendant Gomer Pyle, is the last surviving adult male member of the cast.
From Wikipedia: Gomer Pyle, U.S.M.C. is an American situation comedy that originally aired on CBS from September 25, 1964, to May 2, 1969. The series was a spin-off of The Andy Griffith Show, and the pilot episode was aired as the season finale of the fourth season of its parent series on May 18, 1964.