Oor Wullie, the street was, indeed, Martyrs Street. My gran lived at no. 3, two up, and my dad's parents lived about no. 19(?).
My family lived just round the corner from them at no. 40 Parson Street, and we shared the same backcourt with my gran.
On the corner of the two streets was a shop called Carruth's Grotto which sold all things Catholic, due to the very close proximity to St. Mungo's Church and Academy, as well as the Priests' House (Seminary?).
Ah don't hear sae well withoot ma specs