When Brian and Eddie Holland returned to write / produce at Motown in the 70's, I know they worked with the following artists:

Thelma Houston - I Can't Go On Living Without Your Love
Diana Ross - We Can Never Light That Old Flame Again
Jr. Walker - Hot Shot album
The Supremes - 1975 Album / High Energy / Mary, Scherrie & Susaye

Is there anything else to add to this list? Were they writing / producing outside of Motown at the time as well?