|Delta Sigma Lambda|
|Founded||September 9, 1921|
|Affiliation||NIC (Jr. member, former)|
|Emphasis||Order of DeMolay|
|Colors||Blue and Gold|
|Chapters||12 at merger|
|Merged with||Theta Chi (1937), and scattered|
Delta Sigma Lambda (ΔΣΛ) was a social fraternity founded on September 9, 1921, formed entirely of members of the Order of DeMolay. It continued for about fifteen years, numbering 12 chapters in its rolls, with several closing in the early years of the Great Depression. Delta Sigma Lambda's remaining chapters either disbanded or were absorbed by other fraternities by 1937.
The origin of Delta Sigma Lambda can be traced to the spontaneous rise of a number of local collegiate organizations based on the principles of the Order of DeMolay, a Masonic organization for boys, during 1921–1924. On December 23, 1924 six of these fraternities met in Lawrence, Kansas to consider the formation of a National fraternity based on these principles.
Those represented were:
Other chapters were invited to attend, but were unable. By December 25, the consolidation was finalized, taking the name and founding date from Delta Sigma Lambda, the oldest group.
In 1927 Delta Sigma Lambda would become a junior member of the National Interfraternity Conference.
Delta Sigma Lambda would eventually install twelve chapters, two by way of merger with a small national fraternity, but most by adoption of local chapters around the United States. This process halted by 1931.
The reduction of student enrollment and tightened budgets during the depths of the Great Depression hit all fraternities hard. In September 1933, a smaller, regional fraternity named Theta Alpha, founded on February 22, 1909, merged into Delta Sigma Lambda. Earlier that year three of Theta Alpha's five chapters had gone dormant. The surviving chapters at Syracuse and Cornell accepted a merger, with Syracuse being the stronger organization of the two. By the time of the merger, Theta Alpha had initiated 585 members. Theta Alpha fraternity published a periodical called Theta Alpha.: VIII-25
Later that year the Grand Council of the Order of DeMolay recognized Delta Sigma Lambda as "the national college Fraternity for DeMolays", but Baird's 20th notes that this "may have easily proved a handicap".
The chapter list of Theta Alpha at the time of the 1933 merger were as follows. Chapters listed in bold merged; chapters that were dormant by that time are in italics.: VIII-25 
|Alpha||February 22, 1909–1933||Syracuse University||Syracuse, NY||Merged||Became the Alpha Theta chapter of ΔΣΛ|||
|Beta||1915–1933||Cornell University||Ithaca, NY||Merged||Became the Lambda chapter of ΔΣΛ|||
|Gamma||1922–1933||University of Illinois||Urbana, IL||Dormant|||
|Delta||1925–1933||University of Southern California||Los Angeles, CA||Dormant|||
|Epsilon||1925–1933||University of California||Berkeley, CA||Dormant|||
This infusion was not enough to save the Fraternity, grappling with the depths of the Great Depression. Over the next four years, by 1937, many of the chapters had died. Theta Chi in 1937 agreed to absorb the chapters at Purdue University and the University of Montana, and later, the University of Arizona, along with fraternity alumni. Scattered alumni and some of Delta Sigma Lambda's chapters either withdrew to join other national fraternities or went local.
Badge: Jeweled Shield containing the letters ΔΣΛ at the top, a star and crescent in the center and below, the Greek letters ΘΑ.
The Fraternity flower was the Trillium. The Fraternity's colors were Blue and Gold.
The chapter list of Delta Sigma Lambda at the time of the 1937 merger with ΘΧ was as follows. Chapters are listed in the order in which they were installed. Chapters listed in bold either merged or withdrew; chapters that were dormant by that time are in italics. Half of the surviving chapters joined Theta Chi, three others either immediately or with a local stop, went to other national fraternities.
|Alpha||1921–1932||University of California||Berkeley, CA||Dormant|||
|Gamma||1922–1935||University of Nevada, Reno||Reno, NV||Dormant|||
|Beta||1924–1935||University of Kansas||Lawrence, KS||Dormant|||
|Zeta||1924–1937||Purdue University||West Lafayette, IN||Merged||Joined Alpha Delta chapter of ΘΧ|||
|Epsilon||1925–1936||University of Nebraska||Lincoln, NE||Withdrew||Joined Lambda Nu chapter of ΦΓΔ|||
|Eta||1925–1937||University of Illinois||Urbana, IL||Dormant|||
|Theta||1927–March 27, 1937||University of Montana||Missoula, MT||Merged||Became Beta Epsilon chapter of ΘΧ|||
|Delta||1930–1941||University of Arizona||Tucson, AZ||Merged||Became Beta Iota chapter of ΘΧ|||
|Iota||1931–1935||Carnegie Mellon University||Pittsburgh, PA||Dormant|||
|Kappa||1931–1936||Rensselaer Polytechnic Institute||Troy, NY||Withdrew||Became Epsilon-Eta chapter of ΛΧΑ|||
|Alpha Theta||1933–1936||Syracuse University||Syracuse, NY||Withdrew||Became Theta Alpha (local). Later,
became Iota-Zeta chapter of ΤΚΕ
|Lambda||1933–1936||Cornell University||Ithaca, NY||Dormant|||