Hi Sam,
Here is a link, click on the "detail" link for Frank Herron and it will tell you that he was approx 64 years of age when he died in 1963
http://heritage.christchurchcitylibraries.com/Cemeteries/int...=
Ancestry has a print of the inscription of the grave which reads;
"In loving memory of a dearly loved husband and father Frank Herron, died 5 February 1963. Also a dear wife and mother Ethel May Herron died 14 september 1983. At Rest.''
There is also an entry for a birth for a Frank Herrron in New Zealand in 1900
http://search.ancestry.com.au/cgi-bin/sse.dll?rank=1&new...I don't think this is your Frank Herron, see this link
http://www.geni.com/people/Frank-Herron/6000000001036230939