We loved listening to
"Henry My Son"
"Here's to Cheshire, Here's to Cheese"
"Fifteen Miles on the Erie Canal"
"I've Been Working on the Railroad"
"Riding in My Car"
"Put Your Finger in the Air"
"Michael Row the Boat Ashore"
"Be Kind to Your Parents"
"This Land is Your Land"
But our favorite song was "Abi Yoyo" - more of a story than a song and we listened to it over and over.
Years later I had the privilege of seeing Pete Seeger in concert at Bethel College in North Newton, Kansas. Pete Seeger's antiwar sentiments were right in line with the Mennonites. At one point he asked those of us in the audience to sing for him because he knew Mennonites could really sing acapella. So we all sang a song that we knew as "606" but was really called "Praise God From Whom All Blessings Flow." (This links to a pretty good video - I'm sure there are others) It is a beautiful song and especially when sung acapella by a large group of Mennonites.
I introduced my kids to Pete's songs and we discovered a book in the library "The Foolish Frog" and the song that went with it. My kids loved it. Nothing sticks in your memory quite like music. Farewell to a great musician. You will be missed.