HAMILTON, Robert Clifton. 18?? — 19??. British Civil Servant in India. Served in India from 1893-1920. Still living in 1932. He could well be the R. Cl. Hamilton of https://en.m.wikisource.org/wiki/Page:Oxford_men_and_their_colleges.djvu/667, born in Bath 1872, studied at Oxford from 1891 – but his possible connection with India is not mentioned.
Publications: An Outline Grammar of the Dafla Language as Spoken by the Tribes Immediately South of the Apa Tanung Country. 127 p. Shillong 1900.
Sources: Scanty stray notes in Internet.