Phi Chi Society
Phi Chi Society, or what would become known as the Eastern Fraternity of Phi Chi, was founded by Caleb Wakefield Clark with the support of Frederick Luther Osgood, Isaac Newton Fox and Alfred Judson Young, all of the class of 1889. In March 1889, Clark decided that the local fraternity, Delta Mu, needed organized opposition and formulated the plans that resulted in the organization of a quiz class. Just before his death on June 13, 1914, Doctor Clark; in a letter to T. Elmer Grubbs, senior associate editor of the Phi Chi Quarterly, wrote:
"Phi Chi was not formed for purely social reasons and indeed, my aim and desire to bring about such an organization was primarily to get together and discuss things medical and thus get more out of our college course. The new fraternity was to be established to give all possible aid in the dissemination of knowledge and information along medical lines and to broaden and uplift the minds of all, as I keenly felt the need of a Society through which we could work and cooperate.” Contrary to his expectations however, the society remained a local quiz class until 1896 when a number of members from the University of Vermont met in Baltimore. These agreed to organize a chapter along the lines of the Mother Chapter, asked, and received permission to organize. Thus, Beta was chartered in the Baltimore Medical College. In 1900 Gamma was chartered in the Maine Medical College under similar circumstances. In 1902 and 1903, Beta organized Delta and Theta in Baltimore. These chapters did not have a Grand Chapter, unless the permission of Alpha would constitute Supreme Authority, until 1904 and then only until self-preservation compelled them to. On February 26, 1904, Alpha Chapter called a convention of Phi Chi Society Chapters to meet in Burlington, Vt. June 5, 1904, is the first convention of the Grand Chapter.
In 1904, with the chapter of Phi Chi Medical Fraternity Kappa and Phi in Washington and Chi in Philadelphia, Dalferes P. Curry, Jr. attempted to gain an entrance into Baltimore for Phi Chi Medical Fraternity. He found there a fraternity called Phi Chi Society but without a Grand Chapter and not very closely united. In his peculiar way, he began operations to enter Baltimore.
He knew it was not expedient to attempt to establish another fraternity of the same name in any of the schools where the Eastern Phi Chi already had chapters, so he began to deal directly with its members. During that year Phi Chi, East, called a conference of its chapters and organized a Grand Chapter, retaining the name. Curry pointed out to them that the Southern fraternity, Phi Chi Medical Fraternity was incorporated; the use of the name and seal therefore restricted and they would have to take a new name. Now, the Eastern boys were as shrewd as Curry and offered to confer on the subject of consolidation with the result that the Eastern organization was absorbed in toto, leaving the matter of badge to be settled by a joint committee. Alpha, of course, being the oldest chapter remained Alpha but all the other chapters changed their names as per agreement. The Southern branch retained the executive power. On March 5, 1905, Phi Chi Medical Fraternity and Phi Chi Society are joined in Baltimore, MD, making Phi Chi the largest medical fraternity in America. Chapter names which conflicted during the joining were resolved by allowing the older chapter to retain its single name and the second chapter to have its name duplicated.
| Chapter | Location | Dates | |
| A | University of Vermont College of Medicine, Burlington | 1889–1967 | Remained as A of Phi Chi after merger |
| B | Baltimore Medical College | 1895–1913 | Became BB of Phi Chi. Later merged with ΠΣ |
| Γ | Maine Medical College, Brunswick | 1900–1921 | Became ΓΓ of Phi Chi. School later closed |
| Δ | Baltimore University College of Physicians and Surgeons | 1902–1915 | Became ΔΔ of Phi Chi. Later merged with ΒΔ |
| Θ | Maryland Medical College | 1903–1907 | Became ΘΘ of Phi Chi. Later merged with ΠΣ |