Other Moon orbiters: Jim Lovell, Tom Stafford, Fred Haise, Al Worden, and Ken (TK) Mattingly.
Of those, I've had an extensive conversation with TK, moderate conversation with Jim Lovell and Fred Haise, some conversation with Alan Bean, and listened to talks and Q'n'A sessions with all of them.
Most were pretty moderate in the words they used, but in most cases you could hear between the spoken lines the frustration, and the yearning to see flights beyond LEO. In the longer, more personal conversations their feelings were obvious when the topic came up, supporting the impression obtained from the more moderate, public statements.
