Derek Parfit

Here’s an obit in Vox but will compile and post other obituaries as they come out.

New York Times

Derek Parfit and Janet Radcliffe-Richards (not an obit)

“With no other philosopher have I had such a clear sense of someone who had already thought of every objection I could make, of the best replies to them, of further objections that I might then make, and of replies to them too,” the philosopher Peter Singer wrote recently on the philosophy website Daily Nous.