Mr. Premise said:Note that Laura is referring to Julius Caesar, not Caesar Augustus (first Emperor, Julius Caesar's (adopted?) nephew). If a source mentions Caesar they mean Caesar Augustus. If they are referring to Julius Caesar they will use both names.
Actually, when a source mentions "Caesar" alone, they usually mean Julius and when they mean Octavian Caesar, they say "Augustus." But then, it depends on the source, too, and the context.