 In 1837, Lewisberry native Hervey Hammond began manufacture of the patented Hammond window sash spring, and in 1838, President Martin Van Buren installed Hammond springs in all of the White House's windows.As of the census of 2000, there were 385 people, 146 households, and 102 families residing in the borough.The population density was 2,892.4 people per square mile (1,143.5/km²).