One of his daughters in law sold me my house. Try the Pittsburgh History Center. They will, certainly, have his songbook and may have something on record. Also try Calliope House, the Pittsburgh folk music society. They may be able to help. Or call directory assistance and ask for Schmertz in Pittsburgh. There aren't that many of them. The daughter in law works for Howard Hanna. The real estate situation being what it is, she may have some time on her hands.

By the way, she's a great real estate lady. She kept the new kitten for three days while I moved, and it isn't her fault that my house totaly sucks.