Hello all & a very Happy Christmas,
I've been having a look around to see what crops up regarding tug of war in the 1900's in Bradford. It led me to the Saltaire heritage site
www.saltairevillage.info .
One chap born in 1917 describes competing in tug of war at school in Roberts Park . If you want to view the full article go to the website and go to history club then history articles "I was born in Saltaire in June 1917".
A further image google and I found this, it looks quite similar to me but I'm sure their are some photographic wizards (I'm not!!) who might be able to sharpen and zoom the image to look at the features more closely

Fingers crossed this will work... I really am useless at this sort of thing!
All the best
Woodydog