Unfortunately only 1 in 5 of the Sands & McDougall directories from 1860-1940 have been digitized at this stage. It's always the one that you want that is never available isn't it! I did look in the 1913 electoral roll on Ancestry but there is no mention of the name Clarence for that year. Perhaps if they were moving around for a little while they weren't able to register any permanent address (not sure how things worked in those days!). Hopefully in time you will be able to find the information you are looking for!
Andrea
