John Lennon was born on October 9, 1940; his son Sean October 9, 1975.
When John was young, his mother, Julia, resided at Nine Newcastle (nine letters) Road, Wavertree (nine letters), Liverpool (nine letters).
He used to take bus #72 (7 + 2 + 9) to the Liverpool Art College every morning.
His #9 songs include "Revolution #9", "#9 Dream", and "One after 909"
The Beatles' first record deal was secured May 9, 1962.
The Beatles' first record, "Love Me Do", was issued on Parlophone label R4949.
John met Yoko Ono, November 9, 1966.
John and Yoko later resided at NYC's Dakota Apartments on West 72d Street (7 + 2 = 9).
The chorus of John's first hit solo song has nine words:
"All we are saying is GIVE PEACE A CHANCE".