 Later when Polish and Czech immigrants arrived, they also settled in Sheelytown and South Omaha.The community was a working class and poor area, often regarded as dirty and "uncivilized" by wealthier Omahans.In the early decades of the 20th century, the community had ex-officio mayors for many years, including Nicodemus Dargaczewski, who was a close ally of political bosses "Cowboy" James Dahlman and Tom Dennison.