The other records that might possibly include him are the registers of electors, but they are not freely available online, and unless you had an address to target it would be a very long job to check all the names in Glasgow in one year, never mind several years. Depends how determined you are 
The registers of electors are most readily available in the Mitchell Library in Glasgow.
Ancestry (subscription or often available at a library) have a searchable database for Glasgow, Lanarkshire, Scotland, Electoral Registers, 1857-1962
Boo
Changing the words of your post within my quote from 'not available online' to 'not freely available online' changes the meaning of the post and my reply.
If you are going to attribute a quote to me I'd rather you left it as it was written. Thanks
Boo
