If you put his name "John F. Christian" as Exact Phrase in 'Papers Past' you will find a letter from him to the Editor, headed THE HOMESTEAD CLAUSE AT KYEBURN, dated July 29th, Kyeburn Diggings.
In Otago Witness , Issue 1446, 9 August 1879, Page 5

paperspast.natlib.govt.nz/cgi-bin/paperspast?a=d&cl=search&d=OW18790809.2.7.8&srpos=1&e=-------50--1----2%22john+f+christian%22--

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