Your reference is incorrect. They were married and his Dad was temporarily working in the Canadian oilfields. His Dad was not yet a Naturalized citizen, although he was a previous “resident” of the US following his exile from Cuba.
Actually, I didn’t give you a reference. I merely stated that the reports I read only referenced the mother. I also stated they did not make claims about her marital status.
I read Cruz’ parents had lived in Canada for 4 years before his birth, and for 4 years after.
Cruz moved to the US when he was 4 years of age.