Assuming that I've identified the right person
1924/10537 Strong Howard James Nash 83Y
...and thus was apparently born in 1841 so if he came from Exeter, Devon he may just appear in the 1841 English census with his father William.
Incidentally between 1876 & 1893 James Nash Howard Strong had several children with a Florence...
1876/8175 Strong Frederick George Howard Bach Florence James Nash Howard
1877/9727 Strong Albert Harold Florence James Nash Harold
1879/13695 Strong John Arthur Florence James Nash Howard
1880/10993 Strong Leonard Augustus Florence James Nash Howard
1882/11877 Strong Catherine Elizabeth Florence James Nash Howard
1884/12029 Strong Ellen Winifred Florence James Nash Howard
1886/3255 Strong Walter Septimus Florence James Nash Howard
1889/14042 Strong Gilbert Victor Florence James Nash Howard
1893/4158 Strong Florence Edith Florence James Nash Howard
...but there is no sign of a marriage in the NZ BMD.
There is a likely death record for Florence assuming that she did not remarry...
1928/2502 Strong Florence 73Y