Thank you so much. I have found his other siblings too and possibly his father.
Is there a way to then find the actual images on familysearch as jorose found on the 1st answer? I seem to be going around in circles there. Not sure how to find particular people rather than having to scroll through the images, or is that the only way

Yes on subsequent census, he still lists himself as married.
I have been in contact with a grandson of his by ordering a death certificate of one of Matthew's
daughter's, he was the informant, and he has been very helpful.
He said that his gran, Winifred, had Matthew pronounced dead so she could remarry. She obviously didn't have contact with him again or at least made out she didn't.
From the homestead grant and further court documents, he obviously lost the land, probably due to WW1, and possibly never bought a home so became just a "roomer".
On the homestead grant he stated, whilst not working on the land, he was employed as a shipper by Hingston Smith arms in Winnipeg.
My one wish would be to try to find a photo of him. His grandson said his mother destroyed all photos after she remarried

Thanks again