Hi Lu,
Thanks for the extra details. Not sure we can cross him off, yet, as there were two sons of Alfred named Alfred

One arrived on La Hogue, 1874 age 4mths. the other born to Jane and Alftred in 1886.
I've receioved further details on Jane Lewis from NZSG - proving once again that it pays to check, check and check again!

Details of her death from Napier Council:
Plot Purchase Details, Purchaser D/O W & S Nee Scott.
BORN IN IRELAND. Funeral Dir note IN NZ 13 YRS. 3M, 3F.
Details from NZSG:
Daughter of William and Sarah SHANNON nee SCOTT. 
Born Ireland. In NZ 13 years.
Married at Auckland at age 18 years to Alfred LEWIS. 
Children: 3 male, 3 female.
Apparently taken from the same source, but the second information had vital information of her parents and marriage.
John B