Bellamy found one IC object: the open cluster IC 4996 in Cygnus. He discovered it with on a plate taken with the 13" astrograph at Radcliff Observatory, Oxford, on October 9, 1903; see A New Cluster in Cygnus, MNRAS 64, 662 (1904). He measured 103 stras in the cluster. After finishing his work he became acqaintened with the fact, that the region was already measured at Potsdam Observatory. Dr. Clemens had taken the relevant plate on June 13, 1896, marking a cluster of 12 stars (Photographische Himmelskarte, Bd. 2, p. 221, plate 922). Thus Clemens is the very discoverer of IC 4996.
Obituary: MNRAS 97, 263 (1937)