I have James LeBeau, son of Alexis LeBeau and Angelique L'Enfant married to Louisa Schmidt Nagel. Her parents were Ernst and Luisa Schmidt. She was born March 1847 in Grabow, Mecklenberg, Schwerin and was James' 2nd wife. I'm assuming that Nagel was her first husband but I have no information on him. They did have a son, Frederick Nagel. Here is some census information.
1900 Census; Berlin Twp., Monroe Co., MITaken June 9th Line 16, Dwelling 114, Family 114 Louisa LaBo; Head of house, W, F, Mar. 1849, age 53, widow, no children, born Germany, parents born Germany, farmer, can read, write and speak english, owns farm free and clear. Frederick Nagel, son, W, M, Dec. 1869, age 30, single, born MI, parents born Germany, farm laborer, can read, write and speak English.