Early settlers were mostly Pennsylvania Dutch with names like Hite, Allstadt and Wager. Workmen at the armory included many Irishmen. There was good-natured violence between these groups: on St. Patrick's Day the Germans paraded with effigies of the saint, and the Irish assailed them with fists and clods. On St. Michael's Day the Irish turned out with a highly insulting figure of Germany's national saint necklaced in sauerkraut, and the Germans gleefully sallied out to riot.
-- from Harper's Ferry: Prize of War by Manly Wade Wellman (McNally of Charlotte, 1960)
Good-natured violence, eh? Sometimes the good ol' days aren't quite so good.