Emeritus David Barnes Professor Emeritus (269) 387-5493 (269) 387-MGRRE (8617) Send an email Ronald B. Chase Professor Emeritus Duane Hampton Professor Emeritus, Physical hydrogeology (269) 387-5496 Send an email Bill Sauck Professor Emeritus (269) 387-4991 Send an email Christopher J. Schmidt Professor Emeritus W. Thomas Straw Professor Emeritus John Yellich Emeritus Director of the Michigan Geological Survey (269) 387-8649 Send an email
