Charlotte J. Chell teaches courses in both the Computer Science Department and Mathematics Department. Her specialty is mathematical logic, which provides a theoretical basis for her work in computer science and gives her a special interest in the courses of discrete mathematics, algorithms and structures, and computer organization. Among her research interests are computational abstract algebra and symbolic computation. Currently, she is investigating applications of abstract algebra to computer error-detection.

She also teaches in the Carthage Great Ideas program. She has been honored with the Carthage Distinguished Teaching Award. She was the first woman to serve as chairperson, then governor, of the Wisconsin section of the Mathematical Association of America. In 2000, Chell was also the first woman to be awarded the Distinguished College and University Professor of Mathematics by the Wisconsin MAA. She was formerly a consultant and reader for Advanced Placement (Computer Science) of ETS. Chell is currently a consultant to the NEXT program of the MAA, and has served as member and chairperson of the national membership committee of the MAA.

She is a member of Phi Beta Kappa and Omicron Delta Kappa. She also completed graduate work at the University of Chicago where she served as instructor in the department of computer science. Chell taught at Carthage from 1975-77, and has taught here continuously since 1981.

Kevin M. Crosby teaches in both the physics and computer science departments at Carthage, and has chaired both departments. Dr. Crosby has taught broadly across the physics department curriculum, including courses in planetary astronomy and global climate science. He is currently involved in a variety of undergraduate space science research initiatives including microgravity studies of lunar regolith, and near space exploration using sounding rockets and high altitude balloons.

Dr. Crosby also involves students in computational physics research. He and his students have published papers on several problems involving the physics of disordered materials and materials under mechanical and electrical stress. Computational physics research at Carthage makes use of molecular dynamics calculations to understand the behavior of atomic surfaces and boundaries. For term schedules and information on space sciences research opportunities at Carthage, visit Dr. Crosby's home page.

Mark Mahoney served as a senior software engineer at Motorola and an adjunct professor of computer science at Roosevelt University prior to joining the Carthage faculty. At Motorola he worked on two-way radio and cell phone software. His work with Bluetooth Wireless Communication protocols resulted in algorithms that improve the efficiency and increase the audio quality of Bluetooth audio connections. This work resulted in a U.S. patent.

He received his Ph.D. in computer science from the Illinois Institute of Technology in Chicago. His research interests are in software engineering, software design, design patterns, state based systems, and object-oriented and aspect-oriented software development.

Dr. Mahoney teaches Object-Oriented Programming, Database Design, Operating Systems, and Software Engineering courses.

Dr. Wenjie Sun joined Carthage in 2006. She is originally from Harbin city in northeastern China. She earned her B.S. in geography with a minor in economics from Beijing University. Prior to Carthage, Wenjie went to graduate school at Indiana University, Bloomington, where she received her M.A. in geography, M.S. in computer science, and Ph.D. in geographic information science (GIS). She teaches courses in GIS, Satellite Image and Air Photo Analysis, Human Geography, Geography of East Asia, and Heritage. She also led interdisciplinary themed J-Term trips to China with Dr. Choffnes from the Biology Department in 2008 and 2009.

Wenjie has been conducting research projects using GIS and Remote Sensing (RS) techniques to examine land use and land cover change (LUCC) from the perspective of human-environment interaction. For her dissertation work, she has been involved in a couple of NSF-funded research projects on LUCC in southern Indiana and spatially explicit decision-making lab experiments combining GIS and experimental economics. She has published in the International Journal of Geographical Information Science and given a number of talks at national professional meetings.

She is also interested in applying GIS and RS to a wider range of economic, social and environmental studies. Since 2008, she has developed collaborative applied research opportunities with the Kenosha County Health Department, particularly on using GIS and spatial analyses to identify high-risk neighborhoods for the Kenosha-Racine Lead Free Communities Partnership Program and ultimately help preventing childhood lead poisoning. This collaboration has resulted not only team projects in Advanced GIS class, but also a successful SURE (Summer Undergraduate Research Experience) award, a senior thesis project and two national-level conference presentations.

In addition, she is actively pursuing undergraduate research and teaching opportunities on regional differences in China and East Asia through organizations such as AsiaNetwork.

In her spare time, Wenjie enjoys traveling, landscape photography, cooking, and badminton.

Erlan Wheeler attended the Massachusetts Institute of Technology under a National Science Foundation Graduate Fellowship. Wheeler conducted research in the area of combinatorics.

As the Director of Carthage's former Computer Studies Program, Wheeler helped launch Carthage's computer science major and department in December 1998. Now he divides his teaching between mathematics and computer science. Active in undergraduate research ever since receiving an NSF Research Experience for Undergraduates grant as an undergraduate, Wheeler began Sine on the Dotted Line, the Carthage Journal of Undergraduate Mathematics.

A member of Phi Beta Kappa, Wheeler joined the Carthage faculty in 1992. He received the Distinguished Teacher of the Year Award in 1995 and became a Full Professor in 2006.