This explains the Suffolk connection !
The Times, Monday May 20, 1963, pg 16ObituaryColonel Jacynth D'Ewes FitzErcald Coke
CMG, CVO, CBE, who died on Friday
at his home at Woodbridge, Suffolk, was
chief constable of the West Riding in Yorkshire
from 1919 to 1929 and from 1932 to 1937
Chief Constable of West Suffolk. From the latter
year until 1945 he was one of His [sic] Majesty's
Inspectors of Constabulary