Hi I have found Mary Jane Hopkins age 4 b.abt 1907 living with her mother Hannah (age 26 b.Penbryn Cardiganshire Wales) sister Elizabeth E - living in Newcastle Emlyn Wales they are on the 1911 Wales Census.

Mary Jane Hopkins is on the Canadian Passenger Lists 1865-1935 - Date of Arrival 26 April 1929 - she is on her own not married and says her father is a Mr J Hopkins from Newcastle Emlyn Wales. She is age 22 when she emigrates and says she is from Garthmaestag Wales.

James Charles Brooker is also on the 1911 Wales Census age 7 b. abt 1904 in Kent. He is also living in the same part of Wales as Mary Jane - his father is called James Charles Brooker, as well. James is also on the Canadian Passenger Lists leaving UK age 24 and arriving Canada 30 April 1927.
I think they both went to the same part of Canada - Davidson Sask?

They must have married in Canada.

Hope this helps and you can find it on Ancestry.

Regards Norma