Here are some links to web sites and books about razors I found useful:

Web sites

• http://www.safetyrazors.net/schick/schicktech.htm contains a lot of useful information about Schick injector razors.

Books

• A Safety Razor Compendium by Robert K. Waits
• Before Gillette by Robert K. Waits

Web sites for researching people

• familysearch.org
• ancestry.com
• ancestrylibrary.com
• One step links
• New York Times Archive
• JBM Dates