Additional information about Paul B. Hendrickson:

Paul B. Hendrickson World War I collection, 1914-1950, MS 694, Woodson Research Center, Fondren Library, Rice University. Digitized materials and finding aid.

Additional archival collections about Camp Logan:

Clark Bruster WWI Camp Logan collection, 1917-1919, MS 544, Woodson Research Center, Fondren Library, Rice University. Digitized materials and finding aid.

More information on history of Camp Logan and the Houston Riot:

Aulbach, Louis F. (2014). Camp Logan, Houston, Texas 1917-1919 : a World War I emergency training center. Call number: UA26 .C375 A95 2014

Crow, Matthew. (2017). Camp Logan 1917: Beyond the veil of memory. Houston History Magazine. accessed November 21, 2018, https://houstonhistorymagazine.org/2017/05/camp-logan-1917-beyond-the-veil-of-memory/

Handbook of Texas Online, Robert V. Haynes, "HOUSTON RIOT OF 1917," accessed November 21, 2018, http://www.tshaonline.org/handbook/online/articles/jch04.

Haynes, Robert V. (1976). A night of violence: the Houston riot of 1917. Louisiana State University Press. Call number: F394 .H8 H39.