Nesser, Louisiana  Nesser is an unincorporated community in East Baton Rouge Parish, Louisiana, United States. The community is located northwest of Old Jefferson and southeast of Westminster. The community is named after Ludwig Nesser. A German from Trier, Germany that immigrated to Baton Rouge to work on a plantation owned by the Garig family. After getting married he purchased five acres of land and a built a small house. Then in 1883 the United States Federal Government established a post office in the region. They appointed Nesser as the first postmaster. He served as the postmaster until 1897. When the built a line through the area they renamed the road Siegen Lane.