Historical Societies:
Contra Costa Historical Society
Cowell Lime Works Historic District
Government Agencies:
City of Concord – Reuse Project
Other Agencies:
Mount Diablo Interpretive Association
Technical References
Newspapers:
East Bay Times
(formerly Contra Costa Times)
Libraries:
Blogs:
Note: Online resources are referenced where they are used. The following is a list of print and other non-Internet resources:
Andrews, Edna May
with Janet Settle, Arliss Harmon, and Takako Endo
History of Concord — Its Progress and Promise
Concord Historical Society,
Pleasant Hill, CA, 1986
Bohakel, Charles A.
Historic Tales of East Contra Costa County
Arata Printing, Antioch, CA 1984
Emanuels, George
California’s Contra Costa County — an Illustrated History
Panorama West Books,
Fresno, CA 1986
MDUSD (Mount Diablo Unified School District)
The History of Concord Research Project
Jim Woolum, Editor-in-Chief
Concord in the Town of Todos Santos
Pleasant Hill, CA, 1967
Rego, Nilda
Days Gone By, Volume 1
Concord Historical Society,
Pleasant Hill, CA, 1988
Rego, Nilda
Days Gone By, Volume 2
Concord Historical Society,
Pleasant Hill, CA, 1988
Tatam, Robert Daras:
Old Times in Contra Costa
Highland Publishers,
Pittsburg, CA 1996
Taylor, Richard R.
Ghosts and Other Celebrities of Clayton
Richard R. Taylor,
Clayton, CA 1991
Cowell Historical Society 
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