A pharmacist by profession, Atmore was born in Kings Lynn and lived there all his life. He had a considerable knowledge of all orders but was particularly interested in the Coleoptera, Hymenoptera and Diptera of which he had extensive local collections. He also donated specimens to the Museum at Kings Lynn. Atmore published various articles in the Trans. of the Norfolk and Norwich Naturalists Soc. of which he was made an Honorary Life Member shortly before his death, and two notices in the EMM, 40, 1904, 85 and 238, recording the capture of Tetropium castaneum L. and Odontaous mobilicornis P. near Kings Lynn. It is worth noticing that on p.86 of this issue E.A.Newbery records that Atmore sent him beetles for naming.
There is correspondence with C.J. Wainwright (1909-1912) in the RES. He was FRES in 1886 and a Special Life Follow in 1930. There are obituary notices in Entomologist's Rec.J.Var., 42, 1931, p.160 (by H.J.Turner), Proc.Ent.Soc.Lond., 1931, p.130, and the Lynn News and County Press, 14 October 1930 (MD 7.01, 3-03)