Svend Petersen (March 13, 1911 – January 18, 1992) was a Danish-born author, political researcher and analyst,[1] Trans-O-Gram puzzle creator, one of the four founding officers of The Red Circle of Washington, D.C.,[2][3] and a member of The Baker Street Irregulars.
- ^ Oil City Pennsylvania Derrick Newspaper Publication February 7, 1957
- ^ [1] Red Circle DC About us accessed August 17, 2011
- ^ ""Archived copy". Archived from the original on 2008-10-29. Retrieved 2011-08-18.
{{cite web}}: CS1 maint: archived copy as title (link) Sherlock Holmes Society Article