Hello Margaret, and welcome.
My grandparents lived at number 6 Hornby Street, in the 40's/50's. My Dad was born in 1942, and my Aunt in 1944. Both went to Mount Pleasant, then my Dad went to QEGS, and my Aunt was at the High School.
You might well have known them, my grandparents had a bakers in Ossy, which is still there, if you need another clue.