I used the following references plus fifty years of personal collecting experience in this effort:
- Imperial Glass by Richard & Wilma Ross, the 1971 pioneering effort.
- Imperial Glass by Margaret & Douglas Archer, 1978.
- Volume II of the Imperial Glass Encyclopedia, edited by James Measell, 1997.
- The October 1998 issue of the "Glasszette", a publication of the National Imperial Glass Collector's Society.
- Glass Threads by the Museum of American Glass, Gay LeCleire Taylor, 2004.
- Information available at the National Imperial Glass Collector's Society's website