Dennis Donnini was born to Italian-born Alfred Donnini and his English wife Catherine (née Brown), on 17 November 1925 in Easington Colliery. His father owned an ice cream parlour in Easington and attended Corby Grammar School in Sunderland, now known as St. Aidans School. Before he enlisted, Donnini had two brothers enter the military. Alfred Donnini was captured at Dunkirk and spent the rest of the war in a POW camp, while Lewis Donnini died of wounds on 1 May 1944.
