I have my doubts about Henry McDode being a pseudonym for Hampton Hawes. If Hawes couldn't be credited for contractual reasons, what sense would it make to credit him for one session?
The Lord Disco shows McDoide on a total of four sessions (I can't access it at this moment). One is from 1949: https://www.discogs.com/release/9147738-Big-John-And-His-Orchestra-Too-Late-Blues-Shindig
R.I.P
When I first heard him in 1972, on his ECM LP and with Oregon I was overwhelmed. That band was an Idol for all in the band in whicj I played at the time. A very important early influence.