After the outbreak of World War I, Newbold joined the Royal Engineers and reached the rank of lieutenant colonel. He was
mentioned in dispatches on three occasions and was awarded the Distinguished Service Order. On 27 September 1924, he married Daphne Gertrude Persse, who served with the British Red Cross Society in both the First and Second World War. In 1925 Charles and Daphne moved to
Bulawayo where they lived until early 1939 when they returned to
England. In 1941 Newold became the managing director of Guinness; and from 1942 to 1945 he was the chairman of the Brewers' Society. ==References==