1. Addams
Jane
. “Municipal Housekeeping.” Jane Addams Digital Edition, accessed December3, 2019. https://digital.janeaddams.ramapo.edu/items/show/5827.
2. Laying New York's First Water Mains in 1800;American City,1931
3. 9 Playgrounds Closed: Negro Help Suspended: City Lays Off Nearly 1500 Colored Workmen during Riots,1919
4. Low Wages Drive U.S. Employees to County for Aid,1919