Lansing Jewel, Portland: People, Politics and Power 1851 – 2001
Oregon State University Press, 2003
Hills, Tim The Many Lives of the Crystal Ballroom
McMenamins Pubs & Breweries, 1997
The Oaks in the Progressive Era: The Moralists
A site about the history of Portland's amusement park. The site discusses Baldwin's moral concerns about The Oaks during post Victorian Portland and the varying degrees of influence she had over its operations.