Well, this is a lovely find. I have only just learned that the Dundee singer, song writer and political activist Mary Brooksbank (1897-1978) was a fiddle player too. This snap accompanied an article on Mary in Chapbook magazine (Vol. 3, No. 4, 3-4) by Maurice Fleming. He writes:

The family was musical. Mary played the fiddle, one of her brothers played the mandolin, another the accordion. And mother was aye singing. But then so was everybody else!

Sheena Wellington suggested to me that Mary came to the fiddle later in life, fulfilling a long held ambition to own and play the instrument.