One address given on his medal card fits in with the newspaper reports I suspected were him just after WWI
The Brritish Library have a few books translated by Ralph. As well as the book linked to previously, there's
Title: The Stabilization of the Mark. [Translated by Ralph Butler. With a portrait.]
Creator: SCHACHT, Horace Greeley Hjalmar, Butler, Ralph, translator.
Publisher G. Allen & Unwin, London
Creation Date 1927
Physical description 247 pages ; (8º)
Title: Conversations with Ogotemmèli. An introduction to Dogon religious ideas, etc.
Creator: Griaule, Marcel, 1898-1956.; Butler, Ralph, translator.; HOOKE, Beatrice E.; RICHARDS, Audrey Isabel.
revised, 1965