Rudolph was the second son of Sir Humphrey de Trafford, 3rd Baronet and Violet Alice Maud Franklin.
By 1931, Rudolph was working in London for the Boston investment bank Lee, Higginson & Co., which had also employed Marshall Field III.
In his capacity as the senior director in Europe of Higginson and Co, he negotiated at least two unsuccessful attempts at merger with the British investment house Kleinwort Benson in 1936 and 1938.
The reception was held at Seaford House, which was lent to the couple by Lord and Lady Howard de Walden and they honeymooned in Egypt.
Then in April 1938, after 14 years of marriage, June de Trafford petitioned for divorce on the grounds of Rudolph's adultery in a London hotel in November 1937.