Courtney Simon's jumper from the foul line with 27 seconds remaining proved to be the decisive basket for the Wildcats (16-5).
"I really didn't think about it," said Wilson, now 504-242 over 30 years coaching girls basketball. "I'm doing what I love. I've had a lot of talent to work with."
Although establishing milestones may not have been on Wilson's mind, he said that something very worthwhile has come out of them.
"I'm glad the girls are getting coverage because this is a really good team," Wilson said. "It's nice they're getting more notice."
Corona, who headed the Mendham program for 25 years before stepping down in 2005, has been in touch with Wilson during the last few weeks, calling and texting him.
"I think it's great Tom has the spotlight on him," Corona said. "He's done such a terrific job. It doesn't bother me (that he's the winningest coach in Morris County). Not in the very least. I'm sure Tom will go on and win many more games.
"Tom's teams always have been sportsmanlike and played hard."
Three times Wilson was denied on the way to No. 504. The Wildcats, adept from outside the arc, played well but fell to Jefferson, Mountain Lakes and the Morris Catholic in a MCT quarterfinal.
Versus Morristown-Beard, Whippany Park had three players - Lauren O'Connor and Olivia and Alana Dudley - in double figures.
O'Connor, a senior guard, had 21 points and four assists. Olivia Dudley, also a senior, finished with 15 points and nine rebounds. Junior Alana Dudley added 10 points and four rebounds for the Wildcats, who led 29-25 at halftime.
Tatiana Johnson, a senior center, paced the Crimson with 21 points. Freshman Morgan Bartner had 10 points.
Wilson has been successful as a soccer and softball coach as well. He is 371-206-45 in boys soccer and 367-66 in softball. His record over a two-year stint as girls soccer coach is 23-14-2.
Both of his daughters, Shannyn and Jocelyn, have been members of the team when their father attained coaching milestones. Shannyn, currently a senior, was present for Nos. 500 and 504. Jocelyn wore a Wildcats uniform when Wilson got his 400th victory.