Gill, Dr. and Mrs. Charles C.: Hawaii's stamps tell history. Weekly Philatelic Gossip, Aug. 12, 19, 26, Sept. 9, 23, 30, 1939.
2.
Gill, Charles C.: Mails from Honolulu to New York, 1851-65. Mekeel's Weekly , May 12, 1941.
3.
Gill, Charles C.: The 5¢ and 13¢ engraved portrait of Kamehameha III. Stamps , April 18, 1942.
4.
Gill, Charles C.: The first Hawaiian stamps—the Missionaries. Stamps, May 31, 1941.
5.
Gill, Lieut.Col. Charles C., M.C.: Early days of the Hawaiian postal system. Mekeel's Weekly, Dec. 7 and 15, 1942.
6.
Gill, Lieut.Col. Charles C., M.C.: The stamps of Hawaii, edited by Henry A. Meyer.Weekly Philatelic Gossip, Jan. 22 to April 1, 1944. Ten installments.
7.
Meyer, Henry A., Frederick Harris, William J. Davey, John K. Bash et al.: Hawaii: Its Stamps and Postal History . New York, N. Y., The Philatelic Foundation. Charles C. Gill. Part 1, Chapter 4, The Business Affairs of the Early Post Office; Part 2, Chapter 12, The Type Used in Printing the "Missionaries."
