from Waterford) Old Lyme (originally South Lyme) created from Lyme in 1855 Chester in 1836 Westbrook in 1840 Essex (originally Old Saybrook) in 1852 Old Saybrook created from Essex in 1854 Ivory From 1840 to around 1940, the U.S. was the world's biggest buyer of ivory and most of that ivory went to Deep River. Phineas Pratt developed an ivory lathe and eventually Deep River became known as "the queen of the valley" due to wealth from the ivory industry. The rival Comstock, Cheney & Company was established in nearby Ivoryton in the 1860s. Points of interest These sites in town are on the National Register of Historic Places: Deep River Freight Station – 152 River St.; since December 21, 1994 Deep River Town Hall – Connecticut Route 80 and Connecticut Route 154; since January 1, 1976 Doris (Sailing yacht) – Connecticut River off River Rd.; located there when NRHP-listed, May 31, 1984 Pratt, Read and Company Factory Complex – Main St. between Bridge and Spring Sts. and 5 Bridge St.; since August 30, 1984 The grave of XYZ – Mysterious bank robber's grave w/ "XYZ" initials. Fountain Hill Cemetery. Knock thrice. Mount Saint John – 135 Kirtland St. Events Every year on the third Saturday in July, Deep River hosts the Deep River Ancient Muster, the largest one day gathering of fife and drum corps in the United States. Demographics As of the census of 2000, there were 4,610 people, 1,824 households, and 1,262 families living in the town. The population density was . There were 1,910 housing units at an average density of . The racial makeup of the town was 94.56% White, 2.41% African American, 0.04% Native American, 0.80% Asian, 0.07% Pacific Islander, 1.04% from other races, and 1.08% from two or more races. Hispanic or Latino of any race were 2.95% of the population. There were 1,824 households, out of which 30.2% had children under the age of 18 living with them, 56.6% were married couples living together, 9.1% had a female householder with no husband present, and 30.8% were non-families. 24.0% of all households were made up of individuals, and 8.7% had someone living alone who was 65 years of age or older. The average household size was 2.46 and the average family size was 2.93. In the town, the population was spread out, with 24.3% under the age of 18, 5.4% from 18 to