John's only collaborators were Paul and Yoko, with the following exceptions:
"Cry For a Shadow" (co-written with George)
"What Goes On" (Lennon-McCartney-Starkey)
"Flying" and "Free as a Bird" are credited to Lennon-McCartney-Harrison-Starkey.
He also contributed to several Harrison songs (without credit) including "Something" and "Taxman".
reading
england
Japan
poopy dunk
No.
john Lennon
I was !
No
the Dakota in NYC
Imagine.
No he was not
It is assumed John's widow is in possession of his remains.