Thank you to everyone, listed and anonymous, who has contributed to this study. (in alphabetical order)

Hawaii Overprint Currency Experts:
James Hodgson
Peter Huntoon
Donald Medcalf
James Simek
Loose Change Collector
the doc_archive
the Paperboy

Researchers:
Frederick Bart
Scott Lindquist
Samantha Medcalf
John Schwartz
Stephen M. Sullivan
Jamie Yakes

Organizations:
Hawaiian Islands Stamp and Coin
Heritage Auction Galleries
Honolulu Star-Advertiser
Ira and Larry Goldberg Coins & Collectibles
Krause Publications
Lyn Knight Auctions
Schuyler Rumsey Philatelic Auctions
Stack's Bowers Galleries

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