Dear Colleagues This is devastating news. Bob started at Sydney University after finishing his PhD in 1970 at the Australian National University. I started at Macquarie the same year. That is when our friendship and collaboration began. He was an exciting person to work with and I admired him greatly. We started thinking about Yoneda structures almost immediately. Bob was a major influence on category theory in general but especially on Australian category theory. His charismatic lectures to undergraduates at Sydney University encouraged many students to continue in mathematics and category theory. He saw early, in his own original terms, how categories applied to computer science. One of Bob’s great achievements was understanding Higg’s work on Heyting-valued equality in the light of Bill Lawvere’s insight into Cauchy completion via adjointness. This gave a vital reason for extending enriched category to a base bicategory. There is so much to Bob’s work and influence. The latest issue of Applied Categorical Structures landed on my desk just last week; Bob is a joint author of a paper there. I was hoping to see Bob at CT2014 in Cambridge. He had planned to go and to speak. This wasn’t to be. As Bill said, our deepest condolences are with his family. Ross [For admin and other information see: http://www.mta.ca/~cat-dist/ ]