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Group: Current Members

Scott Kongable

Scott Kongable is the president of Crystal Group. He joined the company in 1998 as the Director of Engineering, becoming the president in February 2003. In this capacity, he is responsible for the general supervision and control of the company’s...

Barbara Janson

Retired President & Founder Janson Publications BS in Mathematics, Iowa State University, 1965 MS in Mathematics, Trinity College, 1970 MBA in Marketing and Finance, University of Rhode Island, Kingston, 1982 Barbara Janson was founder and President of Janson Publications, a...

Dr. Albert Erisman

After completing his PhD in Applied Mathematics at Iowa State University in 1969, Dr. Erisman joined the mathematics research staff at the Boeing Company in Seattle, WA. His research work was in the field of sparse matrix computation. In 1990...

Kira Barclay

Kira H. Barclay is Director of Analytics at John Deere Financial World Headquarters in Johnston, Iowa. Barclay oversees customer and channel analytics at John Deere Financial. She leads a team of analytics professionals whose mission is to drive sales opportunities...

Dr. Timothy Pennings

Timothy Pennings grew up in rural Minnesota and decided in the ninth grade that he wanted to teach mathematics or physics at the highest level possible. To that end, he attended the University of North Dakota for his Bachelor’s and...

Robert Antol

Bob Antol attended Iowa State University majoring in Mathematics graduating in 1978. He was Iowa State's first recipient of the Richard V. Andree award for his paper entitled "The Perfect Numbers and Pascal's Triangle". After graduating from Iowa State in...

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