First recorded by Johnny & Jackey (1961).
Hit versions by Diana Ross & The Supremes (US #1/R&B #1/CAN #3/UK #13/IRE #19 1969), Bert Kaempfert (MOR #27 1970), Bill Anderson & Jan Howard (C&W #4 1970).
From the wiki: “‘Someday We’ll Be Together’ was written by Johnny Bristol, Jackey Beavers, and Harvey Fuqua in 1961. Bristol and Beavers recorded the song together, as ‘Johnny & Jackey’, for the Tri-Phi label that same year, becoming a moderate success in the Midwestern United States but gaining little attention elsewhere.
“Tri-Phi would then be purchased by Motown in the mid-1960s. Fuqua, Bristol, and Beavers all then joined Berry Gordy’s famous Motown record company and, as a result, ‘Someday We’ll Be Together’ became part of Motown’s Jobete publishing catalog.
“In 1969, Bristol was preparing an instrumental cover version of ‘Someday We’ll Be Together’, to be recorded by Motown act Jr. Walker & the All-Stars. He had already recorded the basic instrumental track and background vocals (by Maxine and Julia Waters) when Berry Gordy happened upon the tracks and heard them and thought that ‘Someday …’ would be the perfect vehicle for Diana Ross’ anticipated exit from the Supremes. Gordy had Bristol quickly sequester Ross into the studio to record her vocal over the instrumental track intended for Jr. Walker.