Wallenders of the Dakotas Montana and Washington

My name is John Meyer, my mother is Annabelle Meyer (Wallender). I am researching family history of her grandfather, Emmanuel Wallender. Am trying to put together a family tree for the newest generation of Meyer/Wallenders so they have a family history to look back on. I know most are in North Dakota, Beulah area some in Minnesota and Montana. My family is from the Fond du Lac, Wisconsin area. Any help would be appreciated.