Harry Nilsson to Tommy Shepard in 13 Steps
- Harry Nilsson wrote Mr. Richland's Favorite Song
- Mr. Richland's Favorite Song was produced by Rick Jarrard
- Rick Jarrard produced Sister Marie
- Sister Marie was arranged by George Tipton
- George Tipton arranged 1941
- 1941 inspired the film That'll Be the Day
- That'll Be the Day stars Ringo Starr
- Ringo Starr played drums for Drumming is My Madness
- Drumming is My Madness features guitar played by Dennis Budimir
- Dennis Budimir played guitar for ...That's the Way It Is
- ...That's the Way It Is includes keyboards played by Jane Getz
- Jane Getz played piano for Duit on Mon Dei
- Duit on Mon Dei includes trombone played by Tommy Shepard