DELTA (2) (Owl Club); January 24, 1837; New York University (New York, New York); Inactive from 1990-92.

BETA (3); August 9, 1839; Yale University (New Haven, Connecticut); Inactive from 1934-present.

SIGMA (4); March 28, 1840; Brown University (Providence, Rhode Island); Inactive from 1968-1986 and 1993-present.

GAMMA (5); November 16, 1842; Amherst College (Amherst, Massachusetts).

ZETA (6); May 10, 1842; Dartmouth College (Hanover, New Hampshire.)

LAMBDA (7); June 20, 1842; Columbia University (New York, New York).

KAPPA (8); July 26, 1843; Bowdoin College (Brunswick, Maine) from the Omega Phi Society.

PSI (9); September 25, 1843; Hamilton College (Clinton, New York), from the "I.T." Society.

XI (10); November 20, 1843; Wesleyan University (Middletown, Connecticut), from the Kappa Sigma Theta Society.

ALPHA (11); November 22, 1850; Harvard University (Cambridge, Massachusetts); Inactive from 1873-present.

UPSILON (12); February 15, 1858; University of Rochester (Rochester, New York).

IOTA (13); November 24, 1860; Kenyon College (Gambier, Ohio).

PHI (14); January 26, 1865; University of Michigan (Ann Arbor, Michigan), from the Lambda Chapter of Beta Theta Pi Fraternity.

OMEGA (15); April 17, 1869; University of Chicago (Chicago, Illinois), from the Omega Society.

PI (16); June 8, 1875; Syracuse University (Syracuse, New York), from the Upsilon Kappa Society.

CHI (17); June 12, 1876; Cornell Univeristy (Ithaca, New York), from the "Pi" Chapter; Inactive from 1982-1984.

BETA BETA (18); February 4, 1880; Trinity College (Hartford, Connecticut), from the Beta Beta Society or Black Book.

ETA (19); February 22, 1884; Lehigh University (Bethlehem, Pennsylvania), from the Eta Chapter of Phi Theta Psi.

TAU (20); May 5, 1891; University of Pennsylvania (Philadelphia, Pennsylvania), from the Upsilon Kappa Society; Suspended from 1990-1993.

MU (21); May 22, 1891; University of Minnesota (Minneapolis, Minnesota), from the Theta Phi Society; Inactive from 1993-present.

RHO (22); March 27, 1896; University of Wisconsin (Madison, Wisconsin), from the Theta Phi Society; Inactive from 1993-present.

EPSILON (23); August 18, 1902; University of California (Berkeley, California), from "Alpha Psi"; Inactive from 1972-1986.

OMICRON (24); May 28, 1910; Univeristy of Illinois (Champaign, Illinois), from the "Aztec Club."

DELTA DELTA (25); May 7, 1913; Williams College (Williamstown, Massachusetts), from the "Delta Delta Society"; Inactive from 1968-present.

THETA THETA (26); June 10, 1916; University of Washington (Seattle, Washington), from the "Phi Kappa."

NU (27); April 24, 1920; University of Toronto (Toronto, Ontario, Canada). EPSILON PHI (28); March 17, 1928; McGill University (Montreal, Quebec, Canada), from "Epsilon Phi."

ZETA ZETA (29); October 19, 1935; University of British Columbia (Vancouver, British Columbia, Canada), from "Alpha Kappa Alpha."

EPSILON NU (30); April 17, 1943; Michigan State Univerity (East Lansing, Michigan), from the "Hesperian Society."

EPSILON OMEGA (31); February 26, 1949; Northwestern University (Evanston, Illionois).

THETA EPSILON (32); June 23, 1952; University of Southern Califonia (Los Angeles, California); Inactive fro 1962-present.

NU ALPHA (33); November 6, 1970; Washington and Lee University (Lexington, Virginia); Inactive from 1974-present.

GAMMA TAU (34); December 19, 1970; Georgia Institute of Technology (Atlanta, Georgia).

CHI DELTA (35); March 30, 1973; Duke University (Durham, North Carolina).

ZETA TAU (36); April 24, 1981; Tufts University (Somerville, Massachusetts); Suspended 1992.

EPSILON IOTA (37); April 16, 1982; Rensselaer Polytechnic Institute (Troy, New York), from the Tau Epsilon Phi Fraternity.

PHI BETA (38); April 14, 1984; College of William and Mary (Williamsburg, Virginia).

KAPPA PHI (39); April 22, 1989; Pennsylvania State University (State College, Pennsylvania), from "Delta Kappa Phi."

BETA KAPPA (40); November 2, 1991; Washington State University (Pullman, Washington).

BETA ALPHA (41); February 8, 1992; Miami University of Ohio (Oxford, Ohio).

Alpha Delta Provisional Chapter; May 2, 1993; Millersville University (Millersville, Pennsylvaia).

Phi Delta Provisional Chapter; August 4, 1994; Mary Washington College (Fredericksburg, Virginia).