Possibly Thomas Warner of Gosditch Street, Cirencester, Gloucestershire (Post Office directory of Gloucestershire, with Bath, Bristol, Herefordshire, and Shropshire 1870). A Thomas Warner is listed as an original shareholder in the Royal Agricultural College, Cirencester, founded in 1845 (Sayce 1992, p. 351). See also n. 3, below.
James Buckman retired from his position as professor of geology and botany at the Royal Agricultural College, Cirencester, Gloucestershire, in 1863; upon resigning his appointment, Buckman ‘received two valuable testimonals, one from the inhabitants of Cirencester and his scientific friends, and the other from his pupils’ (Men and women of the time 1868). Though only one letter to Buckman is extant (Correspondence vol. 6, letter to James Buckman, 4 October [1857]), CD evidently took an interest in Buckman’s research (see letter from S. P. Woodward, 14 February 1863, n. 7).