He aspired to attend the United States Military Academy at West Point, New York; however a physical discovered he had flat feet, eliminating him from eligibility.

[6] Georgia Tech coach Bill Alexander once watched Centenary when it was in town to play Oglethorpe.

"[7] When McMillin moved on to suburban Pittsburgh's Geneva College, Hubbard followed him and played there in 1926 (after a year of ineligibility for switching schools in 1925).

[4] Hubbard moved on to the National Football League in 1927, signing with the New York Giants for a salary of US$150 per game.

[1] Playing alongside Steve Owen his rookie year, he helped the Giants defense allow opponents to score just 20 total points all season as they won the league championship.

But with a lifelong dislike for big cities, he didn't feel comfortable in New York and a 1928 road game in Green Bay led him to request a trade to the Packers, threatening to retire otherwise.

[1] Under Packers coach Curly Lambeau, Hubbard and the team won the NFL title in each of his first three years there (1929–1931).

"[3] Hubbard stepped away from professional football following the 1933 season, taking a job as the line coach at Texas A&M in 1934.

In a 1969 poll by the Hall of Fame committee, Hubbard was voted the NFL's greatest tackle of all time.

[15] Hubbard found the then-common practice of officials moving to different positions on the field during a game to be confusing and hampered accuracy when making calls.

[15] While he was hunting during the 1951 off-season, a ricocheting pellet from a friend's shotgun blast accidentally struck Hubbard in the right eye.

[4] Milan was a small town much like his native Keytesville, which is about 50 miles to the south on Missouri Route 5.

A lifelong avid fisherman and hunter, the rural areas of Sullivan and neighboring counties offered ample opportunity.

[18] Hubbard developed emphysema in the last few years of his life, so doctors suggested that he move away from the cold weather in Missouri.