Robby Benson was one of my favorite young actors of the 1970s. He appeared in many memorable roles in cinema and tv feature movies. Among his early best are: title character in "Jeremy" (1973), 'Johnny Gunther' in "Death Be Not Proud" (1975), 'Billy Joe McAllister in "Ode to Billy Joe" (1976), and 'Henry Steele' in "One on One" (1977). For the latter, he co-wrote the screenplay with his father, Jerry Segal.
I sent Mr. Benson this photo in 1980, to his Los Angeles residence, and he returned it within one month.
Robby Benson has his own website which is updated regularly and has many more details of his extensive career.