Just came across this photo. I thought I'd seen all I had. I think it's taken at the back of the Navigation on Bromford Lane. The people are standing on what I've been told by my uncle was a piece of grass on the side nearest the canal. I can't be 100% though.
On it is my Paternal Grandfather, Grandmother, Father and his 2 sisters (only discovered through a magnifying glass!) Not sure what the occasion was but some of the ladies have their fox furs around their necks so maybe a "special" occasion?