Hi. It's great to hear from you. I think we are 2nd or 3rd cousins. I've been working on my family tree so I have a few more details for you. John and Winifred had 7 children: William John 1870-1937, Barbara 1871-1894, Annie 1873-1899, Irvine 1875-1877, Irvine 1878-?, Winifred 1880-1883, and lastly Winifred 1884-1959 (my grandmother). William John married his first wife Annie Mathieson McDougall (1871-1903) in 1890. She died of TB, apparently childless. He married Hannah McDonald in 1906. They emigrated to Canada in 1921, but by the time of the 1930 US census, they were living in Norwich.
My father Thomas was the youngest of Winifred's 9 children. Your great grandfather would have been his uncle.
I have other family details but don't want to post them on a public forum. I think once you have posted 3 times you can send a Personal Message.