Clarkstown and the Civil War is an exhibit of items related to the war and the citizens of Clarkstown. In 1860 the population of Clarkstown was approximately 4,000 out of a total of 22,492 for Rockland County as a whole. It was a rural community with many small and large farms. As a whole, the County was skeptical of the war effort and Clarkstown was no exception. Yet over 80 residents served their country and by the end of the war 15 of those men had made the ultimate sacrifice, losing their life in service for their country.