The thieves who broke into Captain Gerand Carriere’s warehouse in the steamboat town of Washington in October 1873 might get an A for effort but would surely flunk a basic burglary course. The warehouse was a tempting target. Carriere ran several successful businesses and was a wealthy man. When he married Elize Roquebert de la Morandier in 1837, the marriage contract said the captain, then 27 ye…