ORANGE CITY, Iowa -- Northwestern College will present four of its alumni with awards recognizing their accomplishments and service during the college’s Raider Days Homecoming and Parents Weekend. The recipients will be honored during a banquet Saturday evening, Sept. 29.

Bryan and Nancy (Rowenhorst) Den Hartog of St. Paul, Minnesota, will receive the Distinguished Service to Northwestern Award. Warren Langstraat of Afton, Minnesota, and Linda Van Roekel of Urbandale, Iowa, the first chemistry graduates of Northwestern College, will be honored for Distinguished Professional Achievement.

Warren Langstraat


Linda Van Roekel

Van Roekel

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The Den Hartogs are faithful supporters of their alma mater, opening their home to Northwestern students, faculty and staff; providing scholarships for students from Haiti and students majoring in the health sciences; and making sacrificial capital fund gifts, in addition to fundraising work. 

Bryan graduated from Northwestern in 1981 with a major in biology, then earned his M.D. from the University of Iowa College of Medicine. He is an orthopedic surgeon with Twin Cities Orthopedics. Nancy graduated from Northwestern in 1982 with a major in business and economics.

Langstraat spent his career in laboratory positions in research and development. After graduating from Northwestern in 1969 with a bachelor’s degree in chemistry, he joined the 3M Company in St. Paul, Minnesota, as a laboratory chemist, later becoming managing director for 3M in the Netherlands. 

Van Roekel is also a 1969 Northwestern graduate. She majored in both chemistry and mathematics and then earned a master’s degree in physical chemistry from the University of Washington. After teaching chemistry and math at a public school in Germany, she returned to the United States and worked as a senior chemist for Monsanto and then a technical manager for Columbia Scientific Industries. She later worked at high-tech instrumentation manufacturer INFICON and earned an M.B.A. from Syracuse University.

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