References
Specific citations can be supplied by the author at robert.wyss@uconn.edu

Books
Brimblecombe, Peter, The Big Smoke (London: Methuen, 1987).
Bry, Charlene, Marshall R. Crosby and Peter Loewer, A World of Plants, The Missouri Botanical Garden (New York: Harry N. Abrams Inc., 1989).
Fitzpatrick, Daniel R., Cartoons by Fitzpatrick, St. Louis Post-Dispatch (St. Louis: The Pulitzer Publishing Company, 1947).
Freese, Barbara, Coal, A Human History (New York: Penquin Books, 2003).
Grove, Carol, Henry Shaw’s Victorian Landscape (Amherst: University of Massachusetts Press, 2005).
Harris, Roy J., Pulitzer’s Gold, Behind the Prize for Public Service Journalism (Columbia: University of Missouri Press, 2007).
Obenmeyer, Henry, Stop That Smoke (New York: Harper & Brothers, 1933).
Tarr, Joel A. and Carl Zimring, “The Struggle for Smoke Control in St. Louis,” in Common Fields, An Environmental History of St. Louis (St. Louis: Missouri Historical Society Press, 1997).

Periodicals
Annals of the Missouri Botanical Garden
Life
Missouri Botanical Garden Bulletin
Time

Newspapers
St. Louis Globe-Democrat
St. Louis Post-Dispatch
St. Louis Star-Times

Archives
Joseph Pultizer II Papers, U.S. Library of Congress, Washington D.C.
Missouri Botanical Garden Archives, St. Louis, Mo.
Raymond R. Tucker Papers, Washington University, St. Louis, Mo.
St. Louis County Library, St. Louis, Mo.
St. Louis Mercantile Library, University of Missouri, St. Louis, Mo.
St. Louis Post-Dispatch News Library, St. Louis, Mo.
University of Connecticut, Storrs, Ct.

Interviews
Bennett, Alice, telephone interview with author, October 13, 2011.
Bohrer, Marlene, interview with author, July 6, 2011, LaClede Manor, Webster Grove, Mo.
Brenner, Louis G., interview by Eddie Rosenheim, November 22, 1987( transcript at the Missouri Botanical Garden Archives, Shaw’s Nature Reserve, Gray Summit, Mo.).
Kieling, Irwin, interview with author, July 6, 2011, LaClede Manor, Webster Grove, Mo.
Kluegel, Art, Sr., interview with author, July 6, 2011, LaClede Manor, Webster Grove, Mo.
McConnell, Audrey, interview with author, July 6, 2011, LaClede Manor, Webster Grove, Mo.
McConnell, Bill, interview with author, July 6, 2011, LaClede Manor, Webster Grove, Mo.
Niermann, Mildred, telephone interview with author, January 10, 2012.
Webber, Wilma Hornsey, telephone interview with author, August 4, 2011.
Young, Art, interview with author, July 6, 2011, LaClede Manor, Webster Grove, Mo.

Online
“City Hall History,” brochure (retrieved January 20, 2012, http://www.stlouiscityrecorder.org/cityhallart/stlouiscityhallhistory.pdf).
IGI Airport, Delhi, Air Pollution: Real-time Air Quality Index (AQI) (retrieved November 21, 2014) http://aqicn.org/map/india/.
“Peopling St. Louis: The Immigration Experience,” from A Preservation Plan for St. Louis, City of St. Louis, 2011, (http://stlouis-mo.gov/government/departments/planning/cultural-resources/preservation-plan/Part-I-Peopling-St-Louis.cfm) February 2012.
“Today’s AQI Forecast,” (retrieved November 21, 2014),
http://airnow.gov/index.cfm?action=airnow.local_city&cityid=523
“U.S. Embassy Beijing Air Quality Monitor,” (retrieved November 21, 2014)
http://www.stateair.net/web/post/1/1.htmlU.S. Energy Information Administration (Retrieved February 19, 2012 http://www.eia.gov/coal/).

Miscellaneous
Allison, Oscar Hugh, “Raymond R. Tucker: The Smoke Elimination Years, 1934-1950” (Ph.D. diss., Washington University, 1978).

Header Photo courtesy of the Raymond Tucker Smoke Archives, Washington University, St. Louis, Mo.