I am researching my family, but in doing so , I have found a reference to two Bibault brothers who lived in the Galesville, Trempealeau,Wisconsin area in the 1840s. There names were Leander and Michael. There is no mention of Leander having a wife. They both worked for the American Fur Company at one time, and both apparently became involved in the buying and selling of land. There is a reference to them having some transactions in the Mineral Point, Wisconsin area in 1849. Hope this is of some interest to you. My e-mail address is Labxu@aol.com
. My name is Mark, and I live only 20 miles from these settlements.