1 Individual regarded by the Admiralty as liable to transfer to the Admiralty control in wartime.
2 Royal Naval College at Osborne in the Isle of Wight.
3 Graded as Senior Assistant but as Deputy Head, received an extra £100 per annum.
4 d – died in service; r – retired/resigned.
5 Fetterlein retired in 1938 but rejoined GC&CS on the outbreak of war.
6 Post dispensed with 1923/24