Lt.-Col. James Michael Heigham Royce Tomkin Lt.-Col. James Michael Heigham Royce Tomkin is the son of Lt.-Col. Royce Tomkin.2 He married Margaret Elinor Bunbury, daughter of Sir Charles Henry Napier Bunbury, 11th Bt. and Katherine Reid, on 11 September 1945. Lt.-Col. James Michael Heigham Royce Tomkin gained the rank of Lieutenant-Colonel in the service of the 5th Royal Inniskilling Dragoon Guards. He held the office of Deputy Lieutenant (D.L.). He was decorated with the Military Cross (M.C.). thePeerage.com - Person Page 7066 Descended from William the Conqueror !!