The first major social event in Omega Delta Phi's history was the Home coming Banquet of 1932 where Mr. and Mrs. John C. Hoekje were the honored guest (Hoekje Hall). Alsoin 1932 two faculty advisors were choice, Dr. George Hilliard and Carroll P. Lahmen. Later that same year, a membership drive was organized and instituted with the purpose of recruiting new members from among the leaders of all phases of college activities, thus erecting itself on a firm and enduring base because of its broad representative character. The pledge classes which were formed because of this lasted the whole school year.

During the year of 1933, Omega Delta Phi provided its members with a fine program of speakers which featured such people as; Dr. William McCracken, Mr. Smith Burnham, Dr. Ernest Burnham, and Mr. Floyd Moore. Each speaker made a real contribution to the thinking of the fraternity members thus establishing a positive fraternity tradition. Also during 1933, Omega Phi fielded excellent teams in volleyball and basketball which were very competitive with those of other fraternities and organizations on campus. Their early success in intramural sports helped begin a tradition of sports competitiveness and success for future years. Traditions were built up which embodied the goals and ideals which the ten charter members possessed in organizing the fraternity.

By the year 1937, Omega Delta Phi had already achieved a great amount of success. During the year it was recognized as the outstanding fraternity of campus which resulted in peak popularity for this social club. With its popularity and expanding membership, Omega Delta Phi petitioned the committee on social and house Clubs to change their status as a social club to a house club. Their petition was approved and a house on 424 Davis Street was decided upon and purchased as their new home. Faculty advisor Carroll Lahman resigned, and Mr. Towner Smith was appointed to work with Dr. Hilliard for the new year.

Over the next several years, due to a combination f intellectual atmosphere and variety of formal and informal events, the fraternity grew in size. With their new house and their becoming a house club, Omega Delta Phi was able to vastly expand their social calendar. The result was social gatherings every other week throughout the entire year.

Among the activities which brought the brothers closer together were steak roast, stag parties, hayrides, skating parties, pledge programs, and house parties. Also during 1937, the fraternity began to hold two pledge classes a year. During the year of 1939, Mr. Towner Smith resigned as faculty advisor and Mr. Charles Smith was Elected to the position.

During the years of World War II, Omega Delta Phi brothers ere in every branch of the armed services. Omega Delta Phi ranked among the top in regards to the numerical proportion of any organization on campus as far as men in the service were concerned. However those not involved in the war lost little time in promoting a large amount of parties and social gatherings. During 1942, Omega Delta Phi was awarded the Fraternity Scholastic Cup for having the highest scholastic average of any of the fraternities on campus. Also during this period, Omega Delta Phi became known as the "Straw hatters" because of the tradition in the early years when the pledges wore straw hats. In 1947 Mr. Charles Hicks replaced Dr. Hilliard who retired from active leadership

1949 was a year which will be remembered for many years to come. This was the year that Omega Delta Phi, with 17 members, "Went National" and became the Beta Tau chapter of the Delta Sigma Phi Fraternity. Beta Tau chapter was one of 65 chapters in the United States and Canada who were recognized under the designation of Delta Sigma Phi Fraternity. The goal of Delta Sigma Phi was "To give its members intimate, beneficent fellowship with good men, and to supplement their culture and professional education with training for citizenship and leadership". Members of Beta Tau attended their first National Convention in 1949 and also chose their first "Sweetheart", Charlotte Kniese to reign for a year.
The 1950's began with a chapter of 60 members. In 1951, they achieved a long sought goal of a large fraternity house which would house their entire membership at one location. Their first new house located at 529 Academy Street was unique because it was the first time that all members could live, eat, and sleep together under one roof since affiliating with Delta Sigma Phi. In 1956, to get closer to campus, Delta Sigma Phi moved to another house located at 821 West South Street.

The Delt Sigs became known for their success in intramural sports, the Carnation Ball. Greek Week, and Homecoming. Snow sculpture was another activity that Delta Sigma Phi was very competitive in. In 1958, the Carnation Ball was the first big dance in the ball room of the new Bernhard Student Center. Delta Sigma Phi was recognized as Western's first National Fraternity on campus and the oldest house Fraternity on campus.

The turbulence of the later sixties and seventies took its toll on many of the fraternities on campus. In 1977, Beta Tau lost its charter due to declining membership and financial difficulties.

In the winter of 1982, the Deta Tau colony of Delta Sigma Phi returned to Western Michigan University. A group of alumni led by Bob Piellush (Beta Tau '73) and several consultants were instrumental in landing the approval to colonize. The first initiation class consisted of nine men, who were initiated as pledges February 26, 1983 in preparation for initiation ceremonies on April 6-7 at Hillsdales College's Tau chapter. 80 Active's from various chapters around Michigan and District Governor Dave Collins were also in attendance. The initiates were congratulated for dedication and preparedness shown by their knowledge of the fraternity and by the elements brought out in the pledge education program