I believe that the lyrics to Len Chandler's songs "To Be a Man" and "Keep on Keepin' On" were written by someone named Don Green(e) in 1965. I was in the Army at the Defense Language Institute in Monterey, CA and Don was in the same barracks I was. He was an excellent guitarist and also a songwriter. I remember him working on both of these songs and, at some point, mentioned he was writing them for Len. Over the years I have wondered whether he actually wrote them, or if he was learning songs that Len had already written and published. But, in looking up the album "To Be a Man", I believe that was released in 1968. If that is so, then it might suggest that Don was the actual author of these two songs.