The circus had been experiencing shortages of personnel and equipment as a result of the United States' involvement in World War II. Delays and malfunctions in the ordinarily smooth order of the circus had become commonplace; on August 4, 1942, a fire had broken out in the menagerie, killing a number of animals. When the circus arrived in Hartford, Connecticut, on July 5, 1944, the trains were so late that one of the two shows scheduled for that day had been canceled. In circus superstition, missing a show is considered extremely bad luck, and although the July 5, 1944 evening show ran as planned, many circus employees may have been on their guard, half-expecting an emergency or catastrophe.