[1] They were first employed in 1939, at the onset of the Second World War, with the purpose of assisting in decoding secret messages.

[1] In September 1943 Lieutenant Colonel Margaret Isobel Cooper became regional commander responsible for recruiting women in Indian naval offices.

[4] The appointment of six cypher officers and 239 auxiliaries proved a success and thereafter all Indian ports began to employ WAC(I) members.

[1] By early 1944 the WAC(I) Naval Wing, Women's Royal Indian Naval Service (WRINS), was created and Admiral John Henry Godfrey, then flag officer commanding the RIN, appointed Cooper as its Chief Officer and Deputy Director.

[2] Signals auxiliaries were trained at HMIS Talwar and along with officers, were housed in hostels at Bombay, Chittagong, Cochin, and Vishakhapatnam.