His essays were noted for their trenchant humour and defence of Catholic values in the style of G. K. Chesterton and Hilaire Belloc.
Fonseka worked as a teacher of English in St. Joseph's Catholic College, Ceylon (as Sri Lanka was then known), a school he had attended as a youth, when he captained the cricket team.
[2] According to R. C. Churchill, Fonseka appears to present the case "that Mrs. Shakespeare wrote the plays at Stratford and her husband edited them for the stage.
"[2] However, Churchill is not clear whether or not the essay is intended as "burlesque" (it contains satirical references to Virginia Woolf's feminist booklet A Room of One's Own, in which Shakespeare's sister is portrayed as an oppressed literary genius).
[3] In 1946 he was given the honorary position of "Chamberlain of Honour of the Swords and Cape" by Pope Pius XII, but was unable to leave Ceylon to officially receive the investment in Rome due to illness.