He was a presence in my growing understanding of the professional side of science fiction for almost 40 years. He was the first book editor whose name I knew. I collected a slew of his Timescape imprints from Pocket Books, regarding the label as a mark of excellence in a volatile field that was often untrackable in terms of what was good and what was not. Because of David G. Hartwell, a number of authors came to my attention whose work I have continued to follow to this day.
I was fortunate to know him. A little. Somehow. We crossed paths enough times to be acquaintances and he was always—always—-gracious and, more importantly, interested.…