Who’s the one in the middle?

Uncle Arthur Short (Gladys) on the left, uncle Arthur Otton (Gerry) on the right. But who’s in the centre? Edith Espin?
Which begs the question of location and date. Any ideas anyone?

Uncle Arthur Short (Gladys) on the left, uncle Arthur Otton (Gerry) on the right. But who’s in the centre? Edith Espin?
Which begs the question of location and date. Any ideas anyone?