An update:
It has taken me two and a half years to view Thomas Maitland's medals and I have still failed to locate his soldier number. I assume it was on the rim of the medals, but I just couldn't detect a number in the marks around that rim. Unfortunately I did not obtain permission from my relative to remove the medals from the rather dark room they were in. There are no ribbons, the family thinks they may have perished.
I have photographed the medals as best I could and can at least describe them now. They are the silver medals which I spotted in the pictures here on this site - the QSA and the KSA, one of each.
The QSA has a wreath pointing to the 'R' but no dates, I didn't spot ghosted numbers but presumably they are there.
Clasps above the QSA reading upward are: 'Cape Colony', 'Orange Free State' and 'Transvaal'.
Clasps above the KSA reading upward are: 'South Africa 1901' and 'South Africa 1902'
I also have a photograph of Thomas Maitland in uniform wearing the medals. He was a police officer after the war (we had thought before it also) and I believe the uniform is his police uniform, not his military uniform as it does not match the pictures I have seen of Boer War uniforms.
Thomas Maitland's marriage certificate was very little help, his father was Richard Maitland a coal merchant who I have been completely unable to locate, but Lancashire still seems likely. I had heard he was a policeman in London, but it seems he was in Liverpool which fits with a Lancashire enlistment.
I can only assume his presumed age changed across the years, or he gave himself a few extra years at some point for enlistment purposes.
I have searched on the subscription sites now and Thomas Maitland 2773 has a service record which appears to fit with the medals, although very few details are provide other than 'Depot posted - Pte - 29.12.01' and 'Depot discharged - Pte' and 'Termination of first period of engagement - Pte - 15-4-02'.
This record suggests that Thomas first enlisted a few years earlier and was 'Recalled to Duty' in 1899 and that he was a labourer before enlistment. Also that he had a tattoo! The family certainly did not see that, Thomas and his wife were very polite and proper, so this possible glimpse into his younger years is lovely.