Although no inscription on this photo, studio was W Boughton of Thetford, which points to the Reynolds girls. iPhoto identified left Lillian Mary and right Violet Eugenia. Lillian's likeness matches that in ber biography.

Taken ca. 1890
Right: Charles 23
Middle: Willingham 17
Left: John 19
Front: Pen the dog

Studio: Broughton & Sons, King St., Thetford and at Lowestoft