Brief synopsis and performance history from the site for the PBS special Broadway: The American Musical. (
http://www.culturevulture.net/Theater3/Oklahoma.htm
)
Extensive tribute site including several biographical pages, each devoted to a separate period in Cohan's life. (
http://www.members.tripod.com/davecol8/
)
Career overviews from the Rodgers and Hammerstein Organization site. (
http://www3.rnh.com/RHStein/BIOS/Show_bio.asp?Bio_Name1=Rodgers,+Richard+and+Hart,+Lorenz...
)