Unlike the Princeton Order, the Southern Order flourished and quickly expanded, organizing chapters at Centenary, Davidson, Virginia, Nashville Military Institute, and Cumberland. However, the American Civil War (1861-65) put all expansion on hiatus as all but the Alpha Chapter at UNC became inactive. Soon after the war, new chapters sprang up at Hampden-Sydney, Georgia, Edinburgh (Scotland), Mercer, Emory, Oglethorpe, Trinity, the Kentucky Military Institute, and St. John’s. Previously inactive chapters at Virginia and Davidson were reactivated as well. When the University of North Carolina closed in 1868 due to financial troubles, it became necessary to transfer the Alpha Chapter title to the new Grand Chapter of the Order at Virginia (formerly the Delta Chapter).
A unique result of these times was the establishment of the Theta Chapter of Chi Phi at Edinburgh University, in Edinburgh, Scotland in 1867. After the American Civil War, since many Southern colleges and universities were effectively destroyed, many affluent students went abroad to complete their studies. The Chi Phi Fraternity granted one such group of men enrolled at Edinburgh—two of whom were already Chi Phi Brothers—a charter in 1867. Though active for a few years, Edinburgh’s Theta Chapter added no new members due to a lack of interest. The charter for Theta Chapter was withdrawn in 1870 when the last of the Brothers completed their studies at Edinburgh. This was the first known chapter of an American college fraternity established in Europe.
The Southern Order is symbolized by crossed swords, as depicted on the current Crest, and by Honor, as is referenced in their Initiation ceremony. Their Badge of membership was identified by jewels, most typically pearls and sapphires, on the Greek letter Χ, superimposed on a Φ with clasped hands on the lower and crossed swords on the upper end of the center bar of the Phi, and one star each on the right and left arc of the Phi. Their badge guard with a plain shield.
The early records of many of the Southern chapters were lost and the present rolls are not complete but from the information available, the membership of the Southern Order at the time of the union was as follows: Alpha, North Carolina-80; Beta, Centenary-19; Gamma, Davidson-34; Delta, Virginia-86; Epsilon, Nashville-6; Zeta, Cumberland-5; Eta, Georgia-87; Theta, Edinburgh-13; Iota, Mercer-42; Kappa, Emory-54; Lambda, Oglethorpe-12; Mu, Trinity-41; Nu, Kentucky Military Institute-18; Omicron, St. John’s-9. In total there were 505 members.