Skinner awards help defray travel expenses for graduate students or exceptional undergraduate students attending the society's annual meeting, held this year in St. Louis, in late August.
Selection is based on academic qualifications, professional service and promise.
SIUC was the only University with three Skinner prize winners. Sloss is the son of Monmouth residents Jerry and Patty Sloss. He earned his undergraduate degree at the University of Illinois at Urbana-Champaign in 1991 and his master's at Western Illinois University in 1996. Spier is the son of Baldwin residents James and Darlene Spier. He earned his bachelor's degree at Truman State University in Kirksville, Mo., in 1992 and his master's at Morehead State University in Morehead, Ky., in 1995.