Harry Munroe Napier Hetherington Irving (19 November 1905 in Oxford[1] – 20 June 1993 in Cape Town[2]), often cited as H. M. N. H. Irving, was a British chemist.
[1] Irving was a lecturer and demonstrator in chemistry at Oxford University from 1930 to 1961.
[1] In 1953, Irving and his doctoral student Robert Williams described a periodic trend now known as the Irving–Williams Series.
[1] Irving was a Freemason under the United Grand Lodge of England.
[3]: 163 Irving served at different times as Worshipful Master of both lodges.