Remaining answers have been posted.
The groundskeeper could be added to #1.
Carpenter played for Army from 1957-59 before serving in Vietnam.
The origin of the suicide squeeze surprised me.
The answer to #4 is urban legend. 1940 is a better date for the term, not associated with anyone specific.
Taft is probably okay for #5, but Brother Jasper beat him by nearly 30 years.
Pop Warner is generally credited with the origin of the single wing.
Dean Smith popularized the 4 corners, but it was used first by WV Tech.
Sewell is correct, but the eephus dates to 1935.
I thought someone would say Gifford instead of Jackson, who was in the booth for the first year only.
The Mendoza line was coined by Seattle teammates, who then teased Brett in a slump. Brett passed it on to Berman and ESPN.
A Hail Mary play dates to the 4 horsemen era of Notre Dame football. The first was a 19 yard game winning pass. Catholic schools used Hail Marys in the huddle thereafter, when they needed a game winning score. Staubach’s pass in 1975 popularized the term and of course Flutie added to the Hail Mary lore several years later.
There may be other answers that are equally valid, but I made an effort to establish the true origin.
I could not prove the existence of Furbusher State, but the tale related to Kerner and his allergy to football leather is worth looking up.
http://blindmumbling.blogspot.com/20...rner-kick.html