Stuart Grant Dalton was born in Bournemouth in 1886, the younger of two sons of Constance and Horace Grant-Dalton. Both of Stuart’s parents died when he was young, and as a result he spent a lot of time with Charles and Constance Mary Thellusson, his aunt and uncle. Charles and Constance Mary inherited Brodsworth Hall in 1903.
Stuart went straight from school to the Royal Military Academy at Sandhurst in 1905, later serving with the 1st Battalion of the Prince of Wales’ Own Yorkshire Regiment. Stuart married May Michell in 1911 and had two children, Constance Evelyn and Jean. During the First World War, Stuart served first with his original regiment, undertaking his aviation training during recuperation from a wound. In January 1916 Stuart joined the Royal Flying Corps in Egypt as a Flying Officer. During his service, he was awarded the DSO (Distinguished Service Order) twice. Stuart was severely wounded and had to have one leg amputated. He spent some of his recuperation time at Brodsworth Hall. This injury did not finish his flying career, and Stuart continued his service with the RAF after the war ended. He moved then to the New Zealand Air Force, ultimately retiring with the rank of Wing Commander. He died in 1971.