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Stephen F. Austin State University


Todd Barrios
Todd Barrios - Chef Instructor Office: EDAN 119A Phone: 936.468.1326

Chef Todd Barrios is a Certified Executive Chef through the American Culinary Federation. He holds a Bachelor's of Science degree in Home Economics with a concentration in Hospitality and Institutional Services from Northwestern State University in Natchitoches, LA. He also earned his Master of Arts degree in Adult Education from Northwestern State University.

Chef Todd has extensive foodservice experience in restaurant management and culinary arts. He worked in New Orleans and Baton Rouge, LA with the Brennan Family, Ruby Tuesday Restaurants, Al Copeland Restaurants, Chef John Folse, and The University Club of Baton Rouge. He has worked in the industry for over 20 years and has been teaching in higher education for 10 years.

Chef Todd is a member of the American Culinary Federation, and has won several awards in culinary competitions. He is also SERVSAFE certified in food safety and sanitation and is a Certified ServSafe Instructor and Registered ServSafe Examination Proctor.

He joined the faculty at SFA in August 2011 when his family relocated to Nacogdoches. Chef Todd has been married for over 20 years and has 3 children.


  • Master of Arts, Adult Education, Northwestern State University, 2008
  • Bachelor of Science, Home Economics (Concentration in Hospitality and Institutional Services), Northwestern State University, 1993

Area of Specialization

  • Culinary Arts
  • Food Service Management
  • Food Safety and Sanitation

Area of Expertise

  • Certified Executive Chef through American Culinary Federation
  • Certified ServSafe Instructor and Registered ServSafe Examination Proctor
  • ServSafe Food Protection Manager Certification
  • Flavor Profile Development
  • Menu Development and Design
  • Food Service Facility Design and Layout
  • International and Regional Cuisines
Mary Olle
Mary Olle - Assistant Professor Office: Human Sciences North; Room 101D Phone: 936.468.1873
Mary Olle is a graduate of Stephen F. Austin State University, earning her Bachelor of Science degree in Home Economics. She received her teaching certification from Stephen F. Austin State University as well as her Master of Science degree. She is currently working on her doctorate of education in Family and Consumer Sciences at Texas Tech University. Mrs. Olle has 14 years of public school teaching experience in Family and Consumer Science and has industry experience in lodging and restaurants.


  • B.S. Stephen F. Austin State University - Home Economics - 1984
  • M.S. Stephen F. Austin State University - Human Sciences - 2006
  • Ph.D. Texas Tech University - Family and Consumer Sciences Education - 2012

Area of Specialization

  • Hospitality Administration
  • Family and Consumer Sciences

Area of Expertise

  • Food Science
  • Menu Planning and Meal Management
  • Introduction to Hospitality
  • Family and Consumer Sciences Education
Carl J. Pfaffenberg, Ph.D.
Carl J. Pfaffenberg, Ph.D. - Associate Professor Office: Human Sciences North 106A Phone: 936.468.2130

Dr. Pfaffenberg received his MBA in International Marketing from Michigan State University in 1971. He spent the next 23 years in the hotel industry gaining experience in food and beverage, sales and marketing, general management, and multi-unit management. He accepted a position as a temporary faculty member at Central Missouri State University in their Hotel and Restaurant Management program in 1994. At the end of one year he decided that university teaching was an avenue worth pursuit.

The University of Tennessee accepted his candidacy for their Ph. D. program in Human Ecology. He was conferred in December of 1997. His dissertation was on marketing differences among patrons of Indian and riverboat casinos. His first year teaching was with the University of Hawaii, Manoa in their Travel Industry Management program. He rejoined the University of Tennessee, Knoxville in the Fall of 1998 in the Hotel, Restaurant, and Tourism program.

He joined the faculty at Stephen F. Austin State University in 2004 for many reasons. His children (read grandchildren) are in Dallas and very close relatives live in the Houston area. Finally, the Shreveport area provides an outlet for follow-up research related to his dissertation. He was awarded tenure and promoted to Associate Professor in April of 2008.

Since moving to Nacogdoches, he has developed an additional research track related to the impact of alcohol consumption on post secondary students. He is also faculty advisor to the Driving Jacks, a safe ride program on campus.


  • PhD, University of Tennessee, 1997
  • MBA, Michigan State University, 1971
  • BA, Michigan State University, 1966

Area of Specialization

  • Alcohol / Drug consumption among high school / college students
  • Casino Marketing and Management

Area of Expertise

  • Management and Marketing of Hotels, Restaurants and Institutions
Chay Runnels, Ph.D
Chay Runnels, Ph.D - Associate Professor/Program Coordinator for Hospitality Administration/Graduate Program Co-Coordinator Office: Human Sciences North 107 Phone: 936.468.2060

Dr. Runnels holds a Bachelor's degree in American Studies from the University of Texas at Austin, a Master Science in Architectural Studies degree in Historic Preservation from the University of Texas at Austin, a Ph. D in Resource Interpretation in the Arthur Temple College of Forestry of Agriculture at Stephen F. Austin State University, and is a certified Texas Friendly Program Trainer through the Texas AgriLife Extension.

Dr. Runnels is an active member in the Texas Travel and Tourism Industry Association and works with tourism related organizations to assist in training employees for customer service around the state. She has presented at state and national conferences regarding heritage tourism and historic preservation.

Before coming to Stephen F. Austin, she served for five years as the Texas Forest Trail Regional Coordinator. During her tenure with the Texas Forest Trail, the organization was awarded the President's Preserve America Award for Heritage Tourism.


  • Stephen F. Austin State University, Doctor of Philosophy in Forestry with an emphasis in Resource Interpretation, 2009
  • The University of Texas at Austin, Master's degree in Architectural Studies (Historic Preservation), 2000
  • The University of Texas at Austin Bachelor's of Arts in American Studies, 1996

Area of Specialization

  • Travel and Tourism
  • Destination Marketing
  • Customer Service

Area of Expertise

  • Interpretive Marketing
  • Destination Marketing
  • Cultural Resource Management