This index of commemorative cachets of Boston Sea Scouts was compiled on April 20, 1980. The cachets were produced from 1939 to 1941. Each entry represents a unique cachet design.
Fleet Cruise- 6-17-39 blue ink, hand cancel Gloucester, Mass.
- 6-17-39 blue ink, machine cancel Gloucester, Mass.
- 6-18-39 red ink, hand cancel Gloucester, Mass.
- 8-4-39 maroon ink, machine cancel New London, Conn.
- 8-5-39 blue ink, machine cancel New London, Conn.
- 8-15-39 brown ink, machine cancel Fisher's Island.
- 8-16-39 violet ink, machine cancel Fisher's Island.
- 8-16-39 blue ink, machine cancel Fisher's Island.
- 8-18-39 gold ink, hand cancel Plymouth, Mass.
- 8-18-39 gold ink, hand cancel Sandwich, Mass.
- 9-17-39 red ink, hand cancel Charles River, Mass.
- 9-19-39 red ink, machine cancel Boston, Mass.
- 10-13-39 brown ink, hand cancel Boston Navy Yard Station.
- 10-13-39 brown ink, hand cancel Hull, Mass.
- 10-13-39 brown ink, hand cancel Nahant, Mass.
- 2-3-40 blue ink, hand cancel Back Bay Annex, Boston.
- 2-3-40 blue ink, hand cancel U.S.S. Claxton.
- 2-3-40 brown ink, hand cancel Back Bay Annex, Boston.
- 2-3-40 brown ink, hand cancel U.S.S. Claxton.
- 5-30-40 blue ink, hand cancel Everett, Mass.
- 5-30-40 blue ink, hand cancel U.S.S. Wasp.
- 6-9-40 black ink, hand cancel U.S.S. Haraden.
- 6-9-40 black ink, hand cancel U.S.S. Mackenzie.
- 6-9-40 blue ink, hand cancel U.S.S. Kane.
- 6-9-40 blue ink, hand cancel U.S.S. Trippe.
- 6-9-40 blue ink, hand cancel U.S.S. Mayrant.
- 6-15-40 blue ink, hand cancel Plymouth, Mass.
- 6-17-40 brown ink, hand cancel Plymouth, Mass.
- 6-30-40 blue ink, hand cancel Charles River, Mass.
- 6-30-40 blue ink, machine cancel Boston, Mass.
- 6-30-40 green ink, hand cancel Charles River, Mass.
- 7-20-40 black ink, hand cancel Alburg & Boston R.P.O.
- 7-20-40 black ink, hand cancel Bangor & Boston R.P.O.
- 7-27-40 black ink, hand cancel Port. & Boston R.P.O.
- 8-11-40 green ink, hand cancel Worlds Fair R.P.O.
- 10-4-40 blue ink, hand cancel U.S. Naval Hospital.
- 10-4-40 blue ink, hand cancel U.S.S. Vincennes.
- 10-7-40 blue ink, hand cancel U.S.S. Gleaves.
- 7-4-41 black ink, hand cancel U.S.S. Wilkes.
- 7-5-41 black ink, hand cancel U.S.S. Wilkes.
- 7-6-41 black ink, hand cancel Plymouth, Mass.
- 8-2-41 green ink, hand cancel Portsmouth, NH Navy Yard.
- 8-16-41 green ink, hand cancel New London Sub B.
- 8-23-41 green ink, hand cancel Brooklyn, NY Navy Yard.