SPENCER, Arthur Marshman. 1886 — 1943. British? Perhaps a missionary in Bengal?
Publications: Transl. from Bengali with E. J. Thompson: Bengali Religious Lyrics. Śākta. 103 p. Calcutta & Oxford 1923.
Sources: The book often mentioned in Internet, but nothing else, except years in Wikidata. Unavailable to me is *E.H.C. Maguire & H.L.Paget, A.M.Sp. 1886-1943. 16 p. Calcutta 1946.