A possible match for Frederick,sister Elizabeth may be the witness.
Frederick Smith
christening: 9 March 1887 Aston-Brook, Birmingham
father:George Smith
mother:Hannah Smith
Elizabeth Smith
christening: 11 September 1889 Aston-Brook, Birmingham
father:George Smith
mother:Hannah Smith
Henry Smith
christening: 2 December 1891 Aston-Brook, Birmingham
father:George Smith
mother:Hannah Smith
I think this is them in 1901 in Erdington which is practically the same place as Aston Brook.
RG13; Piece: 2874; Folio: 88; Page: 19.
George Smith 48/ gen. lab./Erdington
Hannah Smith 49/Do.
William Smith 18/Aston
Fred Smith 14/Do.
Elizabeth Smith 11/Nechells
Henry Smith 9/Do.
Possible for 1881:
RG11; Piece: 3045; Folio: 15; Page: 24
Possible marriage:
22 March 1874 St.Peter's & St. Paul's Aston.
George Smith=Hannah Shaw.