Thanks for the speedy replies! Sorry, I didn't make myself clear, I found John on the 1901 Census, and he later became a Butcher, the same as his father, Thomas Cameron. Thomas Cameron was married to Elizabeth Jamieson and they lived at White Street, at the time of the census. John had five siblings. I have not found his marriage to Frances yet, as they may have married in US. On the Death Cert it says " (undeciperable word.)thrombosis...5 days. paralysis of intestines." she was 32.
And Thomas Cameron was also born in Glasgow.