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Henry Foxall owned a Georgetown foundry that made cannons and ammunition for the War of 1812, built a number of Washington churches (including Foundry Methodist), and served as mayor of Georgetown from 1821 to 1823. For all his good deeds, he was rewarded with a street that runs from MacArthur Boulevard to Nebraska Avenue NW—Foxhall Road. Damn. That’s like being in 15-minutes-of-fame hell. It seems public works officials misspelled Foxall’s name on the first street sign to be installed and never bothered to make a correction. In The Names of Washington, D.C., Rockville author Dex Nilsson delivers a few surprising historical tidbits in addition to standard Frommer’s guidebook fare about District streets, neighborhoods, and landmarks. See the Alex Trebek of local trivia when he speaks at 7:30 p.m. at Barnes & Noble, 12089 Rockville Pike, Rockville. Free. (301) 881-0237. (Elissa Silverman)