Hi Ben
I am just starting to research Dora Harrison's family. She married Fred Alcock and lived at Freehay, near to Cheadle in Staffordshire. She came originally from Yorkshire, I think but how she met my Grandad and where, I don't know. She and Fred had six children and I notice you have only four listed. They were in this order:

Fred, born in Staffordshire before Dora went out to Canada.
Edna, born in Canada.
Evelyn Annie, also born in Canada and died there at two years old.
Margaret, born in Canada after Evelyn Annie's death.
Marion and Doreen born in Freehay, Cheadle, after their return from Canada.
I hope we are on the same wavelength and that I am zooming in on the correct family history. If I am and you would like to share info, please get in touch.
Best wishes
Jenn Stewart