Patricia Cook was born in England, and worked at the London Natural History Museum until retiring in 1986. After retirement she came to Australia to continue her work on bryozoan systematics. She has written or co-authored about 100 papers. She was instrumental in establishing the International Bryozoology Association, of which she was secretary for many years. Pat died aged 88 in late 2015. Philip Bock has been a geologist, lecturing at RMIT until retiring in 1997. His enthusiasm for bryozoans arose after mapping the geology of south-western Victoria. He is an Honorary Associate at Museums Victoria, and created the Bryozoan Home Page website in 1994. He also is an editor for the World Register of Marine Species. Dennis Gordon is an Emeritus Researcher at the National Institute of Water & Atmospheric Research (NIWA) in Wellington, New Zealand. He is a global authority on the biology and systematics of bryozoa but has an interest in all life, and served on the international project team of the Catalogue of Life. Haylee Weaver is the fauna taxonomist at the Australian Biological Resources Study (ABRS). She is a parasitologist who has written extensively on the ecology of parasites of Australian rodents. Haylee edits fauna books for ABRS and has developed an interest in bryozoan taxonomy.