H.1: Baker, W.L. Baker was based at the Swinburne College of Technology, Hawthorn, Melbourne, Australia. Correspondence regarding possibility of work on penicillin problems in Abraham's laboratory during sabbatical leave, 1976.

H.2-H.11: Baldwin, G.S. Baldwin came to Abraham's laboratory from the University of Melbourne in 1975 to work for two years as a postdoctoral researcher on the mechanism of enzyme function. He was subsequently based at the University of Adelaide and the Ludwig Institute for Cancer Research, Melbourne Tumour Biology Unit, Australia. Correspondence and papers regarding career, appointments, research and publications. Includes references and recommendations. 1974-1992.

H.12-H.19: Berks, M. (née McPhail). Berks worked in Abraham's laboratory, 1971-1977, first as a research assistant and then as a post-doctoral researcher. Correspondence regarding career, research, publications, and personal news. Includes references and recommendations. 1971-1996.

H.20: Betina, V. Betina was based at the Department of Microbiology and Biochemistry, Slovak Polytechnic University, Bratislava, Czechoslovakia. He met Abraham at the 'Antibiotica Congressus' in Prague, 1964 and subsequently worked in Abraham's Laboratory for a period in 1966 on the antibiotic activity of cyanein supported by a World Health Organization Senior Research Training Grant. Correspondence regarding arrangements for visit, publication, etc. 1964-1972.