John Hammond: Mirrors
According to the liner notes to this 1967 album from John Hammond, "Robby" Robertson, Levon Helm and "Eric" Hudson can be heard on the tracks "I Wish You Would" and Robert Johnson's "Travelling Riverside", both recorded in 1964 during the So Many Roads sessions. The other musicians on these two tracks were Charlie Musselwhite on harmonica, John Hammond, Mike Bloomfield on piano and Jimmy Lewis on bass. However, the instrumentation on "Travelling Riverside" is limited, the guitarist doesn't sound like Robertson and the drummer doesn't sound like Helm. The version of "I Wish You Would" is not the same as the one that appears on Hammond's Red Bird single (as the flip of "I Can Tell").
On side 1 of Mirrors, Hammond plays with "instrumental groups" while side 2 contains 7 songs with "John Hammond, accompanying himself on guitar." The "other group" on tracks 2-5 on side 1 is Billy Butler, James Spruill, Jimmy Lewis and Bobby Donaldson, with Barry Goldberg added on track 5.
John Hammond - Mirrors - 1967 - Vanguard VSD 79245