ABOUT 15 years ago, Ron Hyde was thumbing through a Civil War magazine when he came across an advertisement for a museum called Drum Barracks.
“The ad said it was located in Wilmington, Calif.,” said Mr. Hyde, who lives in Norco, about 50 miles southeast of Los Angeles. “I thought, ‘That’s got to be a typo. It must be in Delaware or North Carolina.’ ”


