Thank you all for your efforts and input.
I just realise I miscalculated by a decade on my original post so it should have said 1920 (but I don’t know how to edit it). I know she had a hard, outdoor life but perhaps I was unfair to her saying she was 35, when looking again she is clearly very lined so probably early 50s so this would put photo into late 1930s and seems to fit with others estimates.
