Includes: 1) British Association for the Advancement of Science Botany (K) Section meeting at Birmingham, 1913, including (from online sources) from back to front, left to right M.J.Legoe, T. Whitehead, Miss Jepps, Dr. Darbishire / Dr. Gordon, Miss L.J. Clarke, Miss Bancroft, F.D. Farrow / Prof. Buller, Dr. Marie C. Stopes (Birkbeck student), Prof. M.J. Benson, F.T. Brooks, R.H. Compton, R.S. Adamson, Miss E.N. Thomas, C.G.P. Laidlaw, H.H. Thomas / Miss Mitchell, Miss Hume, Miss Wigglesworth, R.C. Davie, W.N. Cheesman / Miss Samuel, Dr. Bayliss-Elliot, Miss Wortham, W.N. Jones, Miss Baker, Miss Burch, P.H. Allen / Miss Halket, Miss M.C. Rayner, Mrs. Moss, Col. Rawson, Miss E.M. Poulton, Dr. Woodhead / D. Thoday (Sec.), Mrs Thoday. Dr. Ellis, Dr. R.R. Gattes, Mrs Horne, Dr Horne, Dr T.G. Hill, Dr, De Fraine, Dr. Delf / Prof. David Thomas Gwynne-Vaughan (Birkbeck staff), Miss Pertz, Miss Saunders, W. West, W.B. Brierley, Dr. Helen Gwynne-Vaughan (Birkbeck staff), Miss Welford, Prof. Weiss / Dr. Charles Edward Moss (Sec.), W. Stiles, G.C. Druce, Mrs. Scott, W.B. Grove (Loc. Sec.) / Prof. West, Prof. Yapp, Dr. O. Stapf, Prof. J. Reinke, Miss Ethel Sargant (Pres.), Dr. Scott, Prof. Oliver (Copyright Whittock and Son?); 2) Hugh Hamshaw Thomas in military uniform (WW1), photographer illegible; mounted photograph of Hugh Hamshaw Thomas with aerial (glass plate) camera, standing beside a plane, WW1; two unidentified men standing in front of a (?WW1) aeroplane; Paleobotanical Section of the International Botanical Congress at Cambridge in 1930, including Hugh Hamshaw Thomas, seated front left and Albert Charles Seward, Master of Downing College and Professor of Botany, seated 4th from left, also including Dr Dukinfield Henry Scott (Photographer Scott and Wilkinson); photograph of Hugh Hamshaw Thomas walking his daughter across the main lawn in Downing on her wedding day, 1954; photograph of his son-in-law and daughter cutting their cake (portrait of Master Sir Herbert Richmond on the wall behind); Mrs (Torrie) Hamshaw Thomas with Sir Lionel and Lady Ethel Whitby outside the Master's Lodge, n.d.