I also have Dunn family members in the southeast area of Nebraska which is close to the Kansas border. The Dunn family married into my Brown line like so: My great grandparents are: Mary Frances Dunn (1870-1946) married William M Brown (1867-1889). Her parents were Robert Dunn & Rebecca Dowden. Robert Dunn's father was William John Dunn who died 1897. It's believed that William Dunn was married to a Native American woman. Anyone who sees a connection here, please feel free to contact me. Sherry in Colorado