A few military records that have been found at various palces:

NEW ZEALAND EXPEDITIONARY FORCE 1914-1918 WAR

Edward Sedgwick, Private 8/1633, Otago Infantry Btn. Last New Zealand address c/o Mr Powell, Manaroa, Rewa. Next of kin - Mr J Sedgwick, father, Market Place, Tralee, Ireland.

Richard Sedgwick, Trooper 7/1285, Canterbury Mounted Rifles. Last New Zealand address Baxter's Siding. Next of kin - Mrs Thomas Kaley (sister) Park Place, Gargrave, Yorkshire, England.

NEW ZEALAND NOMINAL ROLL 1939-1948

Albert Fritz Sedgwick, Private 484405, Infantry Reinforcements, married, occupation hardware assistant. Next of kin Mrs M.D. Sedgwick, Ohariu Road, Johnsonville, Wellington.
Cemetery records for Albert Fritz Sedgwick and Mabel Dorothy Sedgwick
Have more data? Send to genealogy@sedgwick.org,
along with enough information for me to post it properly.