Pearson, Henry G. (1923). "Statement of Private Holder 1919". A Business Man in Uniform. The Early Birds of Aviation, Inc. Retrieved 26 October 2012. pp. 198-201 and Apprendix I
Crotty, Capt. Phillip A. Jr., Project Officer, HQ, NYANG (1970). "Official History – Chapter Two". Northern Lights Associates. Archived from the original on 11 February 2012. Retrieved 26 October 2012.{{cite web}}: CS1 maint: multiple names: authors list (link)
Crotty, Capt. Phillip A. Jr., Project Officer, HQ, NYANG (1970). "Official History – Chapter Two". Northern Lights Associates. Archived from the original on 11 February 2012. Retrieved 26 October 2012.{{cite web}}: CS1 maint: multiple names: authors list (link)