Serving at the Crossroads is incredibly blessed to have a board of directors with a variety of experience in fields ranging from medicine to engineering to business.


Robert Sumner, D.D.S.


Robert “Bob” Sumner practiced dentistry for 36 years in West Chester, PA, where he was a partner in Sumner, Spellman, and Thompson, P.C. Prior to coming to West Chester, Bob served 2 years as a dentist in the United States Air Force. He earned a Bachelor of Science degree from the University of Maryland and a Doctor of Dental Surgery degree from Temple University School of Dentistry. In 1987, he took the first of numerous trips abroad to provide dental care to people in need. Over the next 15 years he travelled to the Marshall Islands, Costa Rica, Baja peninsula of Mexico, Brazil, and Honduras, serving the impoverished in those countries. He retired from practicing dentistry in 1995. In 2004, he founded Serving at the Crossroads.



Mike Tysowsky, Ph.D.


Since joining the Board in 2004, Mike has made more than 50 visits to Honduras, where he guided the establishment of an interim clinic along with Bob Sumner.  He coordinated the planning, design and construction of the new healthcare center.  He served as a catalyst for building a medical network, seeking out diverse international partners and identifying ways in which each could work in a collegial environment in support of the new clinic.  He is actively engaged with leaders in the host community and in developing strategic direction, seeking financial support and developing programs that contribute to the building of social infrastructure.  Mike, an entomologist and now retired, former biosciences executive from Zeneca in Wilmington, DE, worked in R&D, new product development, marketing, public, environmental and scientific affairs and held leadership positions at national trade associations in Washington, DC and on the West Coast.  His areas of interest are public health, communications, strategic planning and implementation.



Conrad Olie


Conrad joined the Board as Treasurer early in 2015. In March 2015, following twenty-six years of service, he retired from his position as Director of Human Resources and Administration at Communications Test Design, Inc., a 9,000-employee global electronics engineering and logistics firm headquartered in West Chester, Pennsylvania. Conrad began his career at Air Products and Chemicals, Inc., a multi-national gas and chemical manufacturer based in Allentown, Pennsylvania, serving in several financial roles. He received his Bachelor’s Degree in Business and Economics from Lafayette College in Easton, Pennsylvania.

Conrad also serves as Treasurer on the Board of Habitat for Humanity of Chester County and as Director Emeritus of the Chester County Economic Development Council. He also helps at Westminster Presbyterian Church in West Chester, Pennsylvania, where he is Assistant Organist and sings Bass in the Chancel Choir.  


marty bonds



Ken Ballinger

Ken has worked in Sales and Marketing, New Business, and Market Devlopment in clinical chemistry and laboratory medicine for Johnson & Johnson, Dupont and Con Agra.  He was president of Environmental Bio-control, a unit of the Dupont Company.  He currently serves on the Development and Senior Management team of Arkion Life Sciences Company, a joint venture between Dupont and ConAgra, which is focused on humane, non-lethal control of birds, both in agriculture and urban settings, and avian influenza.


Bobbi Hess

Barbara "Bobbi" Hess is a management consultant and corporate officer for Strategic Insight in Arlington, VA. She has more than 35 years experience in strategic planning, program planning, and budget development for major defense programs; and federal and Department of Defense training institutions.  Bobbi served as Newsletter editor for Serving at the Crossroads prior to joining the Board. Over the years, Bobbi has has been an active volunteer serving in leadership positions for church, her sons'  schools, and the Boy Scouts. She enjoys traveling, hiking, entertaining, and reading a good book. Bobbi lives in Burke, VA with her husband Doug. They have two sons--Phillip who lives in Manhattan and Brian who lives in Arlington, VA.



Jodie King

Jodie has been active with SATC for 9 years. She served on the board of directors as secretary, grant writer, and Combined Federal Campaign (CFC) liaison for 7 years. After a move to the Washington, D.C. Metro area, she was able to be more active with representing SATC in CFC events, so she rejoined the board. Jodie holds a B.S.E. in physical education from the University of Kansas and a Master’s Degree in theological studies from Eastern Baptist Theological Seminary (now Palmer) with an emphasis in public policy. She has always been an active member and leader in her churches, and is currently an active member of Trinity Presbyterian Church, Arlington, Virginia, where she lives. Her other interests include hiking, cycling, entertaining and cooking. She is married to Brad King and they have two grown children; Meryl, who is an enterprise architect, and Bradley, who is a vocal performer and conductor.


Bob Krauss, DMD

Bob Krauss is an Endodontist in Kennett Square, PA. He is a graduate of the University of Pennsylvania School of Dental Medicine. Bob also has taught at Penn and Jefferson and now lectures on endodontics for a national company. He was on the first dental mission trip to the Manos Amigas clinic and has been a total of three times. Each time he has lectured to local dentists helping them and the dentists in our clinic improve their endodontics skills. Bob lives in Chester County and is married with four grown children and three grandchildren.



Pete Thompson, D.D.S.

Upon graduation from Temple University and the completion of two years service in the US Navy Dental Corps, Pete moved to West Chester, PA where he practiced general dentistry for 35 years.  He served on the Board of Education of the West Chester Area School District and on the Board of The Friends  Association for the Care and Protection of Children in West Chester.  Serving in his professional capacity, Pete has been a member of Community Volunteers in Medicine (CVIM) where he now holds the staff position of VP of Dental Affairs. He is also an Adjunct Professor at Temple University.   In addition to being a life-long Rotarian, Pete is an active participant in dental brigades traveling to Mexico and Honduras to attend to impoverished people residing in medically underserved communities.


Louise Vance

A native of Canterbury, England, Louise is a publishing industry professional with experience in many aspects of the book industry, from retail to publishing and sales, working for W. H. Smith and Hodder-Headline.  From 2003 to 2011 Louise set-up and managed her own independent bookstore, The Sandwich Bookshop, before moving back to the US in 2012.  Her many years in bookselling involved working with well-known authors to promote their titles, organizing and compering author talks, hosting her own local radio show and reaching out to schools. Louise was also regularly called upon to speak on BBC Radio Kent. 

As an active community supporter, Louise is editor of the weekly email update for Westminster Presbyterian Church in West Chester, PA.  She has been a girl scout troop leader, a Parish Council member, a volunteer at the Zimmerli Art Museum and has led historical guided tours at Allaire State Park.