on the north half of Lot 6. This hotel had a livery stable and A.H. Danforth was the proprietor. The town was replatted October 9, 1865, by Milo Smith and R. S. and Emily Dickinson. Calamus was legally incorporated in 1876 [October 6, 1875.], and E. F. Owens was elected the first Mayor. His successors have been F. Buck, in 1877, and J. C. Bowman, in 1878 and 1879. The city limits were enlarged in 1913. Civil War The vote in the Olive Township in 1860 was 149, and before the draft for the Civil War was ordered, 79 men volunteered into the Union Army. This was the 'banner' township of Iowa regarding enlistments in proportion to the population. The last survivor of the Civil War was Jacob W. Liebler, who died in 1941. Geography Calamus is located at (41.826669, -90.759793). in Olive Township. According to the United States Census Bureau, the city has a total area of , all land. Major highways Adjacent cities Lost Nation (north) Grand Mound (east) Buena Vista (south), abandoned in 1914 Dixon (south), across the Wapsipinicon River Wheatland (west), across the Wapsipinicon River Demographics 2010 census As of the census of 2010, there were 439 people, 175 households, and 127 families residing in the city. The population density was . There were 185 housing units at an average density of . The racial makeup of the city was 95.9% White, 0.2% Native American, 0.9% from other races, and 3.0% from two or more races. Hispanic or Latino of any race were 1.6% of the population. There were 175 households, of which 32.0% had children under the age of 18 living with them, 57.7% were married couples living together, 7.4% had a female householder with no husband present, 7.4% had a male householder with no wife present, and 27.4% were non-families. 24.6% of all households were made up of individuals, and 13.7% had someone living alone who was 65 years of age or older. The average household size was 2.51 and the average family size was 2.91. The median age in the city was 40.2 years. 26.7% of residents were under the age of 18; 8.1% were between the ages of 18 and 24; 21.6% were from 25 to 44; 25.7% were from 45 to 64; and 17.8% were 65 years of age or older. The gender makeup of the city was 50.6% male and