From Our President

Thanks for checking out the Sigma Phi Delta site! We are a fraternity ever so focused on strengthening both our brotherhood and professional ties. Many of the guys here, myself included, have become the greatest of friends over the course of our stay at Marquette- which I primarily attribute to the wholesome and welcoming environment of our Haggerty House, found on 16th and Kilbourn. We have a great mix of guys who love to play sports, videogames, bike, go fishing, get involved on campus with plenty of other clubs, and you name it! In addition to our extra-curricular stuff, almost every Sig Phi active gains co-op, internship, or research experience while at Marquette- which most of the time extends their stay in Milwaukee! By association with Sigma Phi Delta, you will surely have a future employer interested in what you do with your fraternity. 


In a typical semester, we are involved in intramurals, brotherhood events, service events,  philanthropy events, socials with other Greek Organizations, and an awesome formal at the end of the year. These activities have definitely kept me both involved and interested in the fraternity and strengthened the brotherhood between the actives and myself! Many of the brothers share the same classes too, which definitely improves our grades with plenty of collaboration among us. 

A little about me:

My Name is John Knox and I am a senior from Geneva, Illinois studying mechanical engineering. I spend most of my time outside of class playing spike ball when it is nice or doing some woodworking back when the machine shop was open. I am currently the Treasurer for ASME here on campus as well. I am passionate about the environment and I want to use my degree to help make a positive environmental impact. I have been trying my best but I cannot keep a succulent alive to save my life, so if you have any tips please let me know.


I look forward to seeing you at our O-fest Table or events to talk more about Sigma Phi Delta!

John Knox

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Executive Board

Mason Dieck

Vice President

Hello! My name is Mason Dieck and I am a current Senior, studying Mechanical Engineering with a minor in Business Administration. I am the Vice President of Sigma Phi Delta for the 2021-2022 school year, and am responsible for organizing and promoting brotherhood within the fraternity. At Marquette, I’ve been involved in a few clubs, including Midnight Run Service Program and ASME. Some of my hobbies include weightlifting, football, and competitive trivia. In terms of professional experience, I interned at Actuant Corporation for summer, and co-oped at Leonardo DRS – Naval Power Systems for 3 semesters. My favorite part of our fraternity is the knowledge that I can rely on any of the guys for most anything!

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Nick Ragonese

Vice President of Recruitment

Hi, I’m Nick Ragonese and I am a Senior studying Biocomputing with a minor in Business Administration. I joined Sigma Phi Delta in the Fall 2019 semester and became the Vice Chief of New Members in the Spring of 2021. My time at Marquette has consisted of a late nights spent with friends and textbooks, working out/playing basketball at the rec, playing Spikeball all around campus, and exploring the city of Milwaukee.

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Tim Day


Hello, I’m Tim Day and I am a junior in mechanical engineering originally from Prospect Heights, Illinois. Along with being the Sigma Phi Delta Secretary, I am also the Vice President of Scholarship for the Interfraternity Council and the Legacy Car Manager for the Marquette SAE Baja Team. Currently, I am working my 2nd term of Co-op at A.O. Smith as in their materials department, getting experience testing prototypes and coming up with my own designs. Outside of work and school, I enjoy playing the drums, working out, going to the beach, and spending time with my friends and fraternity brothers.  

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Mario Moreno

Business Manager

My name is Mario Moreno and I am a junior mechanical engineering major from Fond du Lac, Wisconsin. I am the new Business Manager of Sigma Phi Delta and I responsible for managing the fraternity’s budgets and finances. I am also involved as the social chair of ASME and participate in the Marquette Mentors program. Some of my hobbies include biking, lifting, and chilling with friends. This past summer I worked as an Assistant Project Manager Intern at JF Ahern getting experience in wastewater construction and project management. My favorite part of SPD is the great friendships and professional connections I’ve made.


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