Sad to say that you are the only response that I got to my Pierstorff inquiry. Only the Lohff name appears in my family history file. William L. married Marie Pierstorff. She was the daughter of Mary Prien & William Pierstorff. Also Mildred Mae Lohff age 93 died Aug. 16, 2004 in Mt. Horeb, Wis.