Chapter House

Welcome to the Alumni Website of our Presently Closed Chapter in SLO

This site is dedicated to keeping the 1,600 Alumni of Delta Sigma Phi from San Luis Obispo connected and informed about Alumni and University news, issues, and events. Delta Sigs were the first national social fraternity men in SLO-Town. Our national fraternity was founded in 1899 and our SLO Chapter was established in 1950. Our chapter was closed on April 1, 2018, for a period of 18-months. Our bond and brotherhood last a lifetime. We look forward in the future to again providing mentoring, leadership training, character-building programs, and scholarships and other academic-achievement incentives to young men when our SLO chapter again has the privilege of University recognition.

Special News Items

Alumni Reunion Update

After the pandemic prevented us from gathering in 2020 and 2021 for our chapter reunion, we all look forward to a large 2022 reunion in SLO. Our Spring 2022 alumni reunion will be held from Thursday to Saturday, April 21-23, 2022, in San Luis Obispo. Thursday will be golf practice, Friday is our DSP Charity Golf Tournament which raises funds for future scholarships, ACB is Saturday morning at a location to be determined (not at 244), and Saturday early evening, beginning at 5:30 p.m., we hold our alumni dinner-dance and auction at Madonna Inn. This event fundraises for DSP's philanthropic Poly P Scholarship for non-Greek first-year students. To date we have given $18,500 based on merit and need. The dinner-dance requires RSVP and pre-payment. Contact Chris "Yabut" Patterson,, or by cell at 530-941-3986.

Poly P Scholarship

Poly P Scholarship SLO Delta Sig alumni established a philanthropic scholarship program in 2012, the “Poly P Scholarship”. This program provides our alumni with a collective means of giving-back to our alma mater and its student body while honoring our older DSP Brothers who designed and built the present hillside “P” in 1957. To date DSP alumni and their wives have given $18,500 directly to non-fraternal and non-sorority students based upon merit and need. Non-Greek, first year students equally share in educational awards.

The 2021 competition begins Monday, November 1st, and ends on Friday, December 17th at midnight. These dates should be subsequent to Greek recruitment and allow additional time beyond final exams so applicants can focus on their studies.

Those interested in this program can access the on-line application and related scholarship information at, or use the following links.

The photo of the "P" is from DSP archives and shows a 1981 DSP undergrad work-day on the hillside icon.

- Scholarship Information

- Scholarship Application

- Poly P Patrons and Judges

Navigating this Site

Web Site - Chairman: Chris “Yabut” Patterson, W’73,


  • REUNION: DSP will celebrate its reunion from Thursday to Sunday, April 23-26, 2019, in SLO.

  • PHOTOS: Plans are underway to expand this site’s “Photo Gallery” to include the photos of recent alumni reunions.

  • OUR GOALS: We value our alma mater and host University. When again given the privilege of having a campus-recognized undergraduate chapter, our alumni and Fraternity will vigorously promote the many shared goals of our Fraternity and University. These include academic achievement, social development, living-to-values, campus involvement, community service, philanthropy, respect and tolerance for others, and the health and safety of our members, their guests, and all in the University community.