What body style is it? Keep in mind that mechanical parts like engine, transmission, rear end, wheels, radiator, suspension bits are much easier to source than body sheet metal (except for running boards/splash aprons @ Romar). You should be able to search out some assembled chassis photos and easily find photos of complete 1919 cars in the DB photo gallery. Patience is key here. Take a bunch of photos, post them here and we should be able to spot what is missing too.