Mary Elise was born and raised in Prairie du Chien, Wisconsin. She has an MA in history museum studies and has worked at historic sites in upstate New York and Wisconsin. She is currently curator at the Villa Louis in Prairie du Chien. She is also president of the Prairie du Chien Historical Society. Mary Elise has written many articles and several books on the history of the upper Mississippi, including The War of 1812 in Wisconsin: the Battle for Prairie du Chien and Frenchtown Chronicles of Prairie du Chien, both published by the Wisconsin Historical Society Press.