title: The value of children during industrialization: sex ratios in childhood in nineteenth-century America.
authors.forename: E A
authors.initials: EA
authors.lastname: Hammel
authors.forename: S R
authors.initials: SR
authors.lastname: Johansson
authors.forename: C A
authors.initials: CA
authors.lastname: Ginsberg
mesh_terms: D003710:Demography; D049711:History, Modern 1601-; D013223:Statistics as Topic / Q000266:history*; D014481:United States