'Drew-- I can help out on some: I wonder as I wander out under the sky(Title: I wonder as I wander. Frequently treated as a Christmas song, although it was not necessarily meant to be so.)

Oh the Martins and McCoys, they were reckless mountain boys (Title: The Martins and the Coys. Popular song in the late 'forties, early fifties; not necessarily considered folk.)

'Tis sweet to be remembered on a dark and dreary day, by dear friend far away(Title 'Tis Sweet to be Remembered (an old waltz tune, now frequently performed as an instrumental by fiddlers; I believe Mac Wiseman has recorded this.)

Five minutes more, only five minutes more, Let me stay, let me stay in your arms(Title: Five Minutes More. Popular song from the WWII era--perhaps a year or so later). Not considered folk.

Sorry I can't help with the others.