Mummers' Delight

They call themselves New Year's Shooters — after the Swedish and German settlers who fired off muskets to celebrate the new year — but most know them as the Mummers, the 10,000 costumed Philadelphians who parade through the streets at the south end of the city each New Year's Day pretty much as they have for more than 300 years. For those who fill the ranks of the comics,...