Group portrait of the Matron and nursing staff at Roehampton House

Group portrait of the Matron and nursing staff on the steps of Roehampton House, which operated as Queen Mary's Convalescent Auxiliary Hospital from 1915-1938 and became world famous for its work in amputee rehabilitation.
The Matron, Amy Munn, can be seen standing in the centre at the back of the group, surrounded by 25 nurses and VADs. The Matron is wearing a long grey dress with a high white collar and a white veil. She has a large crucifix around her neck.
The nursing staff are dressed in grey uniforms covered with white aprons, and have a variety of head coverings from veils through to short caps. The back two rows of 15 women are generally older and have no red cross on their aprons. They are most likely to be qualified nurses. The front 10 are younger girls, perhaps Red Cross or VAD volunteers.
On the right hand side of the card is written 'Matron and Nursing Staff, Queen Mary's Convalescent Auxiliary Hospital, Roehampton' in black letters on a cream background.
The card was sent from L.C. of 101 Thurlestone Road in Norwood, London - approximately 8 miles SE of Roehampton House - to a Mrs Stonebridge, living at 3 Elthorne Park Road in Hanwell, a similar distance SW of Roehampton House. There is a green half penny stamp in the top right hand corner.
The message proposing a meeting for lunch on the following day is written in black ink.