@techreport{NBERw12056, title = "Single Parenthood and Childhood Outcomes in the Mid-Nineteenth Century Urban South", author = "Howard Bodenhorn", institution = "National Bureau of Economic Research", type = "Working Paper", series = "Working Paper Series", number = "12056", year = "2006", month = "February", URL = "http://www.nber.org/papers/w12056", }