Two Beatle children - Stella McCartney and Zak Starkey - celebrate their birthdays on 13 September. Which Beatle was the first to have a child?
Technically, Heather is the eldest Beatle child by four months, but Paul is not her biological father: she was born to Joseph See Jr and Linda Eastman in 1962, but her parents divorced after two years of marriage. McCartney adopted Heather after he married her mother in March 1969.
Source: radiox.co.uk