Merge two life stories for Robert Redvers Whiffin
All details tie in with each other apart from one record has his date of birth as 7 Sep 1900 and the other as 9 Sep 1900.
The 1939 Register has 9 Sep 1900 as his birthdate:
Sally Whiffing commented
Anne IWM Volunteer commented
Thanks for reporting. These now merged with https://livesofthefirstworldwar.org/lifestory/6806752 as the primary. I think you should take the 1939 register birth date as being the correct one as it occurs twice in two different records.