Hi,
In the Wantage transcripts there is a William Edward Ralph baptised 17-12-1854 the s/o Leah, Workhouse.
As no father is listed would presume that he was illegitimate.
There is also a burial for a William Ralph 14-4-1926 aged 72, The Downs, Newbury Road. which ties in nicely with the date of bapt. above.
The only other "Ralph's" were females with parents Henry & Ann in 1846 & 1854
I looked in the Harwell transcripts and see there is a Frederick William Ralph bapt... "no date" but in 1851 baseborn s/o Leah. This is possibly the same person listed above.
Alan