I have played "Passing Through" by Dick Blakeslee quite regularly, since hearing it originally played in about 1963. Blakeslee wrote it in 1948, and, from what I've read, it was used quite often during Henry Wallace's presidential campaign that same year. Pete Seeger recorded it a couple times on different Folkways albums; and it still lends itself quite well as a great song about peace and brotherhood -- plus the chord structure is quite elemental!