According to the records I could find online, 32 of these men were killed, or died of wounds incurred in the war. Only six of these, however, died on Gallipoli. All of these occurred in the period from mid-May to the end of July - that is, during their time at Cape Helles.
9th April, 1915
3rd Battery N.Z.F.A.
Major Ivan T. Standish; Captain Charles V. Leeming; Lieuts. Robt. Richards; Thomas Farr; H.E. Gardner.
Bat. S.H. John F. Loper; G.M.S. Herbert M. Whyte; Sgts. Herbert A. Christie; Jas. G. Jeffreys; Jes. McDougall; Edward J. Phillips; Chas. Woods; Farrier Sgt. W.T. Killery; Shoeing-Smiths: Percy Fulton; Alan Wishart; John Billings; Saddlers: Walter A.N. Crichton; George Owles; Fitters: Samuel Thomson; Robert Waits; Trumpeters: Leonard W. Dean; Arthur Harrison; Corporals: W.J. Tormer; W. Copping; Harold C. King; W. McLennan; Herbert Fielden; Robert McPherson.
BOMBADIERS: Frank Bryan; Herbert Ayling; R. Donald Covis; Arthur J. Jones; J.E. Duncan; John B. Nolan; Harold L. Cunningham; Horace M. Jones.
GUNNERS: T.G. Hirons; Reginald W. Dancey; W.V. Atkins; A.J. McD. Johnstone; Frank A. Forrest; Alfred W. Hewson; William Howie; Geo. F. Goldsmith; J.W. Helmes; Herbert McDonald; Owen G.W. Priest; John Payne; Henry E. Halpin; Chas. De Tessier; Chas. Bettley; Robert C. Sinclair; Andrew J. Cosbrook; Thos. Saunders; Walter Finney; Leslie Gower; Edward Beard; Richard W. Scott; Harry P. Mole; George Gibbs; Arthur Jackson; George Walton; Charles R. Hudson; Eric W. Mooney; Peter Mooney; Arthur F. Watson; W.T. Nelson; John M. Watkins; Michael Connor; Geo. G. Slater; Thomas C. Hardie; Herbert B. Richardson; Arch. J. Roulston; Eric A. Burnett; James N. Mitchinson; Leonard S. Davis; Ernest F. Pawson; Ernest W. Gibbs; Harold C. de Ridder; John M. McKenzie; Reginald V. Hurley; Arthur S. Woods; Gerald Lyons; E.F. Allen; Charles J.K. Edwards; Gordon G. DeC. Drury; John H. Mains.
DRIVERS: Fred H.G. Sinclair; Chas. W.J. Boult; Thos. S. Jacka; Samuel J. Allen; Llewellyn Beaumont; Frederick Heleon; Grenfell C Griffiths; Stanley Hayward; Thomas R. Brown; Albert J. Stewart; David Anderson; James Sim; Henry H. Tunnicliffe; John Carr; Percy E. Champman; Arthur T. Blomfield; Charles H. Bailey; Herbert F. Wilson; Gilbert H. Tresseder; W.J. Eade; Frank N. Holder; Arthur W.E. Smith; Charles H. Dudley; Philip W. Maddock; Charles A. Grainger; Thomas Williams; Leonard G. Dawson; Harry G. Page; Malcolm M. Taylor; John Stainton; Frederick C. Rosenthall; Chas. F. Beaumont; Graham McConnell; Lesley R. Lockhead; Frank E. Smith; Thomas R. Hale; Robert W. Burns.
SPARE HORSES: Ernest Chester; James Coffey; William E. Kerr; W. Scobie; Frank M. Mitchell; Leslie Mitchell; Lowrie Bates.
Spare Men: Cyril Collins; Reginald E. Locker; Frederick E. Turner; James Currie. Batmen: Joseph F. Gillespie; Francis Gray; Edward J. Eaton; Thomas R. Wills; Howard T. Hazelden; Francis S. Fitness; Alfred Ramsden; John K.M. Gilmour; Leonard Felton; Graham Groome.
TOTAL BATTERY 146
Left At Base.
GUNNERS: John Asling; William J. Williamson; Chas. Gall; Clunie J. Drake; Alfred Archibald; Angus B. Cricket; Peter J. Shannon; W. Cumming.
DRIVERS: Arthur E. Matthews; John L. Loughman; Arthur B.E. Wilks; Robert L. Skinner; Thomas Carroll; Michael Bowler; Storeman: Joseph O’Connor.
OTHERS: Ernest H. Carter; Sidney A. Haszard; Frederick McLarmen; Sid. B. Widerstrom; Roland Smith; Harry Sinclair; Arthur Simes; John Lance; Leonard A. West; Jack Cross.