Bathtubs and even showers can be found in the kitchens of many of New York's late 19th and early 20th century apartments. The flats were often the home of new immigrants and New Yorkers living in these historic homes would bathe next to the kitchen sink. Some families covered their tub to use as a countertop for preparing meals. David Favaloro, senior director of curatorial affairs at the Tenement Museum, explained that the surprising presence of bathroom fixtures in kitchens was partly because…