Hi Portybelle and Templar,
                                          I have had a quick look at my research and  in the following years the marriages were held:-
1921 - 8, Bank Street , Edinburgh 
1934  - 34, Chambers Street Edinburgh
1944  -St. Giles street Edinburgh  
I have a couple in Glasgow as well but for the life of me can't find them 
They were all by Warrant of the Sheriff Substitute. 
Cheers,
Jessie