JAMES CARR:
To Love Somebody / These Ain't Raindrops
(45 rpm single)

Original release:
45 rpm single: Goldwax 340 (1969)

Duane Allman is suspected to play on 'To Love Somebody'.

Sources:

1) Stuart Krause: 'Duane Allman: The Studio Recordings' published in the November 2005 issue of 'Discoveries'. (READ)

2) Randy Poe: 'Skydog - The Duane Allman Story', revised paperback edition page 278 (Backbeat Books, 2008):
James Carr
"These Ain’t Raindrops"/"To Love Somebody" (Goldwax single) 1969
The vast majority of recordings by this greatly underrated soul singer were cut in Memphis, including the A-side of this 45. "To Love Somebody" was recorded at Fame Studios in Muscle Shoals, with Allman and Jimmy Johnson sharing guitar duties.

3) In a 1970 telephone interview with Chris Charlesworth, published in the November 7, 1970 issue of the UK magazine 'Melody Maker', Duane Allman told that he worked in Muscle Shoals with [Wilson] Pickett, Aretha Franklin, Arthur Conley, James Carr, King Curtis, Laura Nyro and Ronnie Hawkins.
(click to enlarge)

Melody Maker
November 7, 1970
https://www.duaneallman.info/abandofrenown.htm

4) On October 29, 2006 Ann Sandlin wrote in the forum on the Allman Brothers Band website allmanbrothersband.com
"Duane mentioned in an interview that he recorded with James Carr which would have been at Fame January 19, 1969 but said there was nothing recorded worth listening to."

There is still no confirmation, however, that Duane actually plays on this track.

Both tracks are also released on 'James Carr: The Complete Goldwax Singles' (Kent Soul CDKEND 202 (UK) (2001)

Both tracks are also released on the various artists compilation CD 'The Complete Goldwax Singles Volume 3' (Ace Records Ltd. (UK), CDCH2 1248, 2010)

"To Love Somebody" is also released on the compilation CD 'The Best Of James Carr' (Ace Records Ltd. / Kent Soul (UK), CDKENM 472, 2017)

"To Love Somebody" is also released on the compilation LP 'The Best Of James Carr' (Ace Records Ltd. / Kent Soul (UK), KENT 513, 2017)