"Hush ... Not a Word to Mary" was the second UK hit for New Zealand singer John Rowles. It was the follow-up release to his major hit "If I Only Had Time".

Background The song was written by Mitch Murray and Peter Callander. Mike Leander was the producer and arranger. The B-side "The Night We Called It a Day" was written by Rowles and Steve Kipner.National Library of New Zealand - Hush- not a word to Mary (sound recording) / Mitch Murray, Peter Callander; (sung by) John Rowles. The night we called it a day / Rowles, Kipner; (sung by) John RowlesDiscogs - John Rowles – Hush... Not A Word To Mary It was published by Intune, which was the new publishing company for Murray and Callender.Billboard, June 15, 1968 - Page 57 International News Reports, LONDON By July 6, the single shot up 18 places from #36 to #18.Billboard, July 6, 1968 - Page 59 Billboard Hits of the World, BRITAIN By July 13, 1968, the single had moved from its previous position of #18 to #12.Billboard, July 13, 1968 - Page 75 Billboard Hits of the World, BRITAIN This single also marked the last of Rowles' chart success in the UK.An Avid's Guide to Sixties Songwriters, By Peter Dunbavan - 52. Murray/Callander

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