Tom Stapleton died on April 24, 2023. His Washington Post obituary is here.
While I was in Appellate (1969-1974), Tom was a Reviewer. He reviewed briefs drafted by the assigned line appellate lawyer and occasionally took oral arguments. Tom reviewed at least 5 (probably 6 or 7) of my briefs, including 2 or perhaps 3 insurance company tax briefs. He was one of the best reviewers, if not the best, that I worked with in Appellate. He was very good at improving briefs.
On another note, the obit says he was a Brooklyn Dodger fan (presumably because he grew up in Brooklyn) and that Jackie Robinson was his hero. I was a Brooklyn Dodger fan from Greenwood, SC, and Jackie was my hero. I did not have as easy an opportunity to attend games at Ebbets Field as Tom did, but I took every opportunity when in NY.