 Cambridge were coached by R. Beesly ( who had rowed for the Light Blues in the 1927 , 1928 and 1929 races ) , W. L. S. Flemming , Mike Nicholson ( non @-@ rowing boat club president for the 1947 race ) , Harold Rickett ( who had rowed three times between 1930 and 1932 ) , and M. H. Warriner ( a three @-@ time Blue between 1928 and 1930 ) . Oxford 's coaches were Hugh " Jumbo " Edwards ( who had rowed for Oxford in 1926 and 1930 ) , F. E. Hellyer ( who had coached Cambridge on five previous occasions ) , A. McCulloch ( who had rowed in the 1908 race ) and J. MacNabb ( who had coached Cambridge between 1930 and 1932 ) . The race was umpired by Guy Oliver Nickalls who had rowed for Oxford in the 1921 , 1922 and 1923 races . 
