A third man, Egbert Phelps, is considered to be the "Assistant Founder" for lending his help and advice to Freeman and Chase after transferring to Union College in 1854 (he was a member of Chi Psi Fraternity).

[3] Unlike other men's college fraternity mergers, Beta Kappa was completely absorbed into Theta Chi with no changes to the name or ritual.

[2][1] The Coat of Arms official description in heraldic phraseology goes as the following: "Or, on a bend gules, a nowed serpent between two swords, points downwards, palewise all the first.

[1] According to The Manual of Theta Chi, the original design for the Coat of Arms was suggested by Freeman, and members of Alpha Chapter used his ideas to develop an official image.

Born of sturdy manhood, nurtured by resolute men, ennobled by high and sacred purpose, it has taken its place among the educational institutions of America as a promoter of knowledge, an advancer of culture and a builder of character.

It inspires true friendship: teaches Truth, Temperance and Tolerance, extols virtue, exacts harmony, and extends a Helping Hand to all who seek it.

I believe in the primacy of Alma Mater; in the usefulness of my Fraternity, in its influence and its accomplishments and I shall do all in my power to perpetuate its ideals, thereby serving my God, my country and my fellow-man.On August 29, 1931, the day of Theta Chi's 75th Anniversary Convention, a stone monument was dedicated at Norwich, Vermont.

Theta Chi's preferred philanthropies are the United Service Organizations (USO), Wounded Warrior Project, the Children's Miracle Network, the American Red Cross, Relay for Life, The Kyle Charvat Foundation, and Habitat for Humanity.

[7] In 2012, Philip Dhanens died due to alcohol poisoning after drinking 37 shots of hard liquor with his fellow pledge brothers at Fresno State University.

[9] In 2018, a Theta Chi pledge at Drake University sued the fraternity on the local and national levels after a hazing drinking incident left him near death.

[10] In 2019, a Theta Chi member at the University of Arizona sued for medical expenses and severe loss of eye sight after a hazing incident on April 12, 2019.

[11] In February 2021, a petition with over 10,000 signatures to suspend the Theta Chi chapter at the University of Massachusetts Amherst emerged after the fraternity hosted several large parties, which were allegedly the cause of higher numbers of COVID cases on the UMass campus.

[12] A protest that attracted a crowd of over 300 students turned violent when car windows were broken and a resident of the Theta Chi house was hit with a bottle.

Another petition that had over 30,000 signatures pushed administration to suspend the chapter, but the chancellor at the time, Kumble Subbaswamy, said without an official complaint or report, there was no way for them to properly investigate the incidents.