Hello Helen
First of all I think the birth year of Henry Baker is incorrect. Looking at earlier records there was only 1 Henry Baker born in Hampton in Arden, Warks. and he was actually baptised 11/12/1836, son of William and Ann - if the birthday is correct then this would make his birthdate actually 17/10/1836.
I'm assuming you don't have details from the 1891 census as this clearly shows there was another older son besides William.
1891 census - 1 Whiteley Road, Norwood (family mistranscribed as Baber)
Henry Baker Widr. 49 Manager Iron Tub Warehouse b. Hampton in Arden
Charles P. Baker son 8 b. London E
William H. Baker son 4 b. Leyton, Essex
Albert V. Baker son 1 b. Norwood, Surrey
Georgina Mennia (or Mennie) Housekeeper Mar. 21 Domestic Servant
b. Jarrow on Tyne
Ref. RG12 - 419 - 74 - 15
So he is a widower on both 1891 and 1901 Census and his age seesaws. Unfortunately, with such a common name it's impossible to establish which of the many marriages could be his. The only way you can establish who his wives were is to get birth certificates of a child from each of his marriages.
Cannot find a likely birth entry for Charles P. Baker but have found:
William Henry Baker Sept.qtr.1886 West Ham ref. 4a 239
Albert Victor Baker Sept.qtr.1889 Lambeth ref.1d 513
(Leytonstone came under West Ham and Norwood under Lambeth)
Ernest Edgar Baker Mar.qtr.1892 Lambeth ref. 1d 571
Good Luck.
Annette