The Delta Chapter of Sigma Rho fraternity was formed from the membership of the Samplers Club on the campus of Montana School of Mines. The chapter was organized, and chartered on May 10,1927.

The original members of the chapter were:

H. H. Nightengale
R. H. Perey
F. E. Johnson
C. C. Goddard
Albion Johnson
John W. Warren
Clarence R. Cota
Don J. Mitchell
H. J. Hinrichsen
Glenn E. Sigler
Norman Thompson
Joseph T. Roy
Byron S. Wells
Jacob Brunner
John O. Groh
John McCarthy