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National Seed Development Organisation; leaflets: Avalon winter wheat, Bounty winter wheat, Norman winter wheat, Virtue winter wheat, Brigand winter wheat, ;Wheat: a guide to varieties from the Plant Breeding Institrute'. 'Developments in Plant Breeding', by Ralph Riley, Agric.Progress, 1974, 49:1-16

Letter from Gordon Rowley to F Stern, 22 Jun 1949 Letter from Gordon Rowley to F Stern, 24 Nov 1949 Letter from Gordon Rowley to F Stern, 21 Jun 1951 Letter from Gordon Rowley to F Stern, 27 Jun 1951 Letter from Gordon Rowley to F Stern, 5 Aug 1953 Letter from Gordon Rowley to F Stern, 14 Sep 1954 Letter from Gordon Rowley to F Stern, 19 Jan 1960 Letter from Gordon Rowley to F Stern, 18 May 1960 Letter from Gordon Rowley to F Stern, 13 Dec 1960 Letter from Gordon Rowley to F Stern, nd [c 1960]

Rosae Rowleyanae: hardback (green); catalogue: 'Rose Collection; Index of Species, Cultivars and experimental material, Agricultural Botany garden, Cutbush lane, Shinfield.' By G. D. Rowley

National Rose Species Collection: 'Bayfordbury, Hertford, Herts, founded 1948', 'Catalogue of Species and Hybrids in cultivation listed alphabetically, Sept 1961', M - Z.

National Rose Species Collection: 'Bayfordbury, Hertford, Herts, founded 1948', 'Catalogue of Species and Hybrids in cultivation listed alphabetically, Sept 1961', A - L.

Index of Plants at Colney: hardback (black/silver, metal & plastic) A - Z.

Cytology of Rosa Species 2: hardback (green); catalogue L - Z; 'Index of all published facts relating to chromosome number, behaviour at melosic and gametogensis in the Genus Rosa'

Cytology of Rosa Species 1: hardback (green); catalogue A - K.; 'Index of all published facts relating to chromosome number, behaviour at melosic and gametogensis in the Genus Rosa'