[78-L] Pre 1926 Red Nichols Records

[Clifford Bolling]

Just got a copy of Columbia 346-D by the Little Ramblers, recorded Mar 30, 1925.  Rust says the band includes Red Nichols, Adrian Rollini, and Tommy Dorsey.  That's pretty cool!  Seems Red Nichols recorded a couple sessions with the Little Ramblers with this being the first.
 
Trying to find the earliest Red Nichols recordings but all his discographies seem to start in 1926.  He apparently was a very prolific recorder with many thousands of recordings in the 1920s, but I can't find anything earlier than 1926.  Is there someplace I might find his earlier recordings?  
 
Thanks!  CDB