File:MD Calvert map.png

Title: Calvert County, Maryland and Neighbors. Author: Drawn by Diltsgd, 14 October 2008 Source: Map concept modified from a state map “The Counties and County Seats of Maryland” drawn by William Dollarhide in 1989 in ''Ancestry's Red Book: American State, County, and Town Sources, 3rd ed. '' (Provo, Utah: Ancestry Publishing, 2004), 307. License:  This map image has been (or is hereby) released into the public domain by its author, Diltsgd. WIKI: FamilySearchWiki.