The picture is of the grandchildren of Sir James Reid. James Reid was the son of the Ellon doctor in the mid-19th century. He studied medicine at Aberdeen University where he was the top student, graduating in 1871 and then studied obstetrics in Vienna. After qualification, he returned to Ellon and joined his father's practice.
Quenn Victoria was looking for a new personal Physician. Because of her love of Deeside she was particularly keen to appoint a Scotsman and James who was fluent in German was the ideal candidate to converse with her German relations and appointed him in 1881. He was subsequently physician to Edward VII and George V.
He was knighted by Queen Victoria and married one of her Maids of Honour - The Honourable Susan Baring - daughter of 1st Baron Ravelstoke and the founder of Barings Bank. They had four children - Edward, later Sir Edward Reid, John, (later Vice-Admiral John Peter Lorne Reid) Margaret and Victoria (later Victoria Ingram).The boy second from the left is Sandy (now Sir Alexander Reid) and the girl 4th from the left is his sister Susan Reid (both children of Sir Edward). The boy on the extreme right is Peter and to his left is Richard - both sons of Victoria and Leonard Ingrams. Richard is perhaps best known as the founder of the "Oldie" magazine.