 However, due to Firth's remote location, residents would have had to travel to Nebraska City for supplies, meaning that the area remained largely uninhabited by non-Natives for many years.Firth was settled in the early 1870s, as the Atchison & Nebraska Railroad was extended toward Lincoln.The post office was established in 1872, named for Superintendent Frank Firth of the Atchison & Nebraska Railroad, and was incorporated in 1879.