I did not see a dedicated thread on this but it may have been mentioned in other threads like the death pool. My search did not find any recent posts about him. Astronaut Ken Mattingly was depicted by actor Gary Sinise in the movie Apollo 13.
Some interesting statistics were passed on Facebook about the Apollo moon missions. I’ve pasted them below.
Rest in Peace, Ken Mattingly.
What follows is verbatim from a Facebook post in the Space Hipsters group. I did not confirm all the info here, but at a brief glance I did not spot any egregious errors. The link is pasted at the end. The “I just did…” in the next line is from the FB poster, not me.
.
With the passing of astronaut TK Mattingly, I just did some stats related to the remaining Apollo astronauts.
Of 24 individual astronauts who went to the Moon (three flew twice out to the Moon), nine are still with us (Borman, Lovell, Anders, Stafford, Aldrin, Haise, Scott, Duke, and Schmitt.
Of the 12 Moonwalkers, four are still living (Aldrin, Scott, Duke, Schmitt).
From the nine Apollo lunar flights, four Commanders are still alive (Borman - Apollo 8, Stafford - Apollo 10, Lovell - Apollo 13, Scott - Apollo 15).
From the six successful lunar landing missions, only one Commander is still living (David Scott - Apollo 15).
With the passing of Mattingly, there are now no Command Module Pilots alive from the six successful lunar landing missions, but from those missions there are three Lunar Module Pilots (LMPs) still with us from Apollo 11 (Aldrin), 16 (Duke) & 17 (Schmitt). Fred Haise, still very much active, was the Apollo 13 LMP, but didn’t get to land on the Moon.
The only full Apollo crew still alive is that from the Apollo 8 mission to orbit the Moon: Frank Borman (95), James Lovell (95 - 11 days younger than Borman), and William Anders (90).
Of the 11 Apollo missions flown with crews (Apollo 7 to 17), no crew members are left from Apollo 7, 12 or 14.
Oldest Apollo astronaut - Frank Borman - 95 (actually, the oldest space traveler still living).
Youngest Apollo lunar mission astronaut - Charlie Duke - 88
Youngest Apollo astronaut - Russell Schweickart (Apollo 9 Earth-orbital mission) - 88 (22 days younger than Charlie Duke)