Can't guess who the signature is but its not a program. Good Day Sunshine was a Beatles Fanzine. It ran from 1981 for many years, quite good too. I am guessing it might just be the signature of the owner or possibly somebody at a Beatles Convention where they often had a table.
I was at that show. It's a copy of"Good Day Sunshine"...it's from 1986...it has photos of the Beatles in Boston in 1964...and 1966. The show was in Boston...Pete Best was the special guest...and this was signed by Beatles drummer, Pete Best.