Leet, Merwin A.
Railway Mail Postmarks of Wisconsin and Upper Michigan
Bulletin No. 12-1978
Wisconsin Postal History Society
Bookwood has a partial photocopy which shows an RPO operated from Star Lake from 1903 to 1915 and from 1934 to 1938, with the postmark "STARLAKE & NEW LISBON R.P.O."
- Bookwood Historical Collection, Star Lake
- UW Madison/Wis Hist Soc