Shower of Ice in Napa, California (sources)
- "Ice From Sky," article in the Napa Journal, newspaper of Napa, California, USA, Vol. 102, No. 13, Thursday, April 17, 1958. Pg. 8, col. 7. Available online through the Napa Library.
- "Things Keep Falling," by Curtis Fuller, article in FATE Magazine, Vol. 11, No. 8, Iss# 101, August 1958. Pgs. 8, 10.
- Stranger Than Science, by Frank Edwards, 1978 Bantam Books (reprint of 1959 Lyle Stuart, Inc.), New York, NY, USA. Pgs. 42