Are you getting your information from somebody else's tree?
If so - the info about his marriage is incorrect which casts doubt on other info.
hi no its what i found when i first started my family tree on ancestry hes sibings births are as follows.
lilian florence walker born jan-mar 1912 birmingham
george herbert walker born abt 1915 in aston he died 1986
my nan hannah walker 24/11/1916 in birmingham she died 18th jan 2001 brentford.
arthur walker born about 1920 in birmingham
emily walker born jan-mar 1922 in warwick died as a baby
violet ada walker born jan-mar 1924 in uxbridge middx died 5th jan1976 in brentford
doris evelyn walker 24th april 1928 in birmingham she died 7th of feb 2009 brentford
my family was boatman and coal miners so there families traveled up and down the canal from birmingham to brentford middlesex.
so thats how i found out the info when i first started the family tree.
i just dont have no info of when arthur walker died