Don...I too have a copy of "the yellow book," from the late 50's, the spine now so broken I'm afraid to open it up in a high wind.

Genie...I have been to song circles like that, nose in book for Comin' Round the Mountain...I find even the need for a music stand in such cases to be a hassle.

A few more with easy tunes/verses/choruses

Banks of the Ohio
I Am a Lonely and a Lonesome Traveler
Roll On, Buddy
Rollin' in My Sweet Baby's Arms
I'll Pawn My Gold Watch and Chain
Satisfied Mind
Hello, Stranger