Clive Vallack Single, D.S.O., M.B., (17 September 1888 – 10 July 1931) was an Australian cricketer, baseballer, soldier, and medical practitioner.
He played two first-class matches for New South Wales in 1912, and three interstate baseball matches for New South Wales in 1911; and, having enlisted in December 1914, he served as a medical officer in the First AIF, in the Middle East, eventually reaching the rank of Lieutenant-Colonel — he was awarded a D.S.O.
in 1919, and was twice Mentioned in Despatches.
"He was a decorated hero, a gifted sportsman, a dedicated doctor and a loving family man.
A true gentleman, he inspired his team mates, his companions and his men to their best ideals." (Eric McElhone)