WPN Managers

W.P. “Buz” Barlow, Jr., JD

UW – Oshkosh WPN Board, chairman

Buz Barlow has served Sigma Tau Gamma in many capacities. He is a past President of both the National Fraternity and Foundation (Emeriti Trustee) and is a Society of the Seventeen member. He has been a recipient of the Dent Man of the Year, Marvin Millsap Medal for Distinguished Foundation Service and has been a Distinguished Morris Fellow.

Professionally, Barlow is the founder and board chairman of Open Range Global Advisors, an international real estate and venture capital consultancy headquartered in Dallas, Texas.

John Heiman, MBA

Central Missouri WPN Board Member

John Heiman has been involved as an alumnus of Sigma Tau Gamma since his graduation in 1984. He joined the fraternity's professional staff in 1985 where he served as the Director Chapter Service until 1987. In this capacity, John visited many colleges and universities throughout the country servicing chapters including the direct inspection of chapter housing. Since 1987, he has served in various volunteer positions including 16 years on the fraternity’s board where he was elected as the 32nd National President in 2002.

Professionally, Heiman is a marketing executive at Sprint. Over the past 30 years, he has held a variety of positions ranging from product management to strategic planning. In his spare time, he has overseen the building and renovation of several homes in the Kansas City area.

He has two children and is married to Cathy Heiman, who serves as a trustee of the Sigma Tau Gamma Foundation.

David M. Birenbaum, P.E.

Missouri S&T WPN Board Member

Dave Birenbaum is President of the Housing Corporation for Alpha Omega Chapter (Missouri S&T) with responsibility for the physical fraternity house and rehabilitation efforts currently underway. He was the Alpha Omega Chapter President as an undergraduate and has been President of the Chapter’s Alumni Association. He has earned the Most Outstanding Alumnus and Distinguished Alumnus awards of Alpha Omega Chapter.

Professionally, Birenbaum runs a forensic structural engineering, structural design, and building inspection firm. His past employment includes Manager of Engineering for the Missouri Public Service Commission and planning and design roles in water, wastewater, and telephony industries. He is a licensed Professional Engineer in Missouri, Illinois, and Iowa. Birenbaum is a past President of the American Society of Home Inspectors St. Louis Chapter.

Birenbaum has been married to his wife Anne for 29 years and has two boys who are engineers and Eagle Scouts. He volunteers to work with student chapters of Engineers Without Borders, helps a local food pantry, and is a trustee of his subdivision. Dave is a docent for the Frank Lloyd Wright house in St. Louis. In his spare time, he enjoys the solitude of camping in the wilderness, canoeing, and gardening.

Scott Troester

Truman State WPN Board Member

As our 30th National President (1998-2000) R. Scott Troester provided visionary leadership to the enactment of universal general liability insurance for all chapters. Scott has remained active in the Fraternity since his initiation at Beta Chapter in 1978. Scott is a third-generation Sig Tau, following his father, grandfather, and his grandfather’s brother. Scott’s son and nephew are also brothers. Scott has served in various regional leadership roles and on the Board of Directors from 1992 to 2004. Scott and Judy Troester live in suburban Kansas City.