Yes, I remember Margaret Sanderson from running the Junior Seagulls and Seagull shop. I also remember her side-kick, not sure of her name, but was a similar age and had a bee-hive type hairstyle.
GR, the sponsors lettering of 'NOBO' on the top in the photo is red, which instantly looks odd to me, as mine is blue.
I don't ever remember seeing us play with the red lettering but could be wrong....