Bullock Famiy

Looking for a Winifred Gertrude Bullock born 1904 in West ham england. Parents are John and Caroline(Woodley) Bullock. Winifred left for Canada in 1926 and landed in Quebec,Quebec. She than went to Toronto,ont and worked as a domestic.In July 1927 she gave birth to my mom. She gave my mom up for adoption at 6 months of age as she was going to marry the man that sponsered her and couldn't take my mom. I have read on the Mcmanus Clearing web page that there was a Anthony John Lowdnes born to a Winifred Lowndes/Bullock in the 1940's(could this be Winifreds son?)Did she return to England.
Any help would be appreciated
Laura