Gunner Family New Zealand

looking for help
Information on 4 brothers Tom, James, Raymond, Billy
sons of Horace James Gunner from New Zealand 1904-1981

Horace James Gunner is my Grandfather. It's very sad that I
never had the chance to meet him. I know nothing about him
his life or what he looked like.
Would be grateful for any information about him and his family.

regards

Denise.