Dear Len,

my grandfather William Barry Jones was born in April 1907; I was told he was born in Bethesda. I don't know when exactly his brother Thomas Q was born. Their father's name could be Robert.
It seems unlikely that the Margaret Quilliam you mention is the same named earlier in the thread as one of 7 Quilliam children. The Margaret in the thread was born in 1891 and she would have been 12 in 1903 (and 16 in 1907 which is still very young but just about feasible).