Liberty Township is a township in Marshall County, Iowa, USA.[1] History Liberty Township was established in 1855.[2] References [1]U.S. Geological Survey Geographic Names Information System: Liberty Township, Marshall County, Iowa [2]Battin, William (1912). Past and Present of Marshall County, Iowa, Volume 1. Brookhaven Press. p. 153. ISBN 9781581038972. 42.1583°N 93.1811°W / 42.1583; -93.1811 This article about the geography of Marshall County, Iowa is a stub. You can help Wikipedia by expanding it.vteWikiwand - on Seamless Wikipedia browsing. On steroids.