Tombaugh was an interesting guy. I was a member of the Astronomical Society of Las Cruses. When I joined in the early 90’s I had no clue he was a member. He gave several talks as I recall one was about the Laborious drawings of Mars he made using the Lowell Telescope, the one he used to find Pluto. He showed us all his drawings during his talk. It was amazing for its time back then. Sat next to him at some other events, It always brought a smile to my face to see him sporting his Walt Disney Pluto watch.
You might know the answer to this:
Isn’t the symbol for Pluto the initials of Perceval Lowell?