Did Sir Arthur Conan Doyle have kids?

A son and a daughter, Kingsley and Mary, with his first wife, Louise Hawkins, aka Touie. Two sons and a daughter with his second wife, Jean Leckie : Adrian, Dennis and Lena Jean (who became Dame Jean Conan Doyle, commander of the Women's division of the Royal Air Force in World War II) Kingsley dies of influenza in 1919, after active service in World War I.

None of Sir Arthur's children had children.