NY Times has an article, with maps, about where the various ethnic communities were in 1920 New York City. http://cityroom.blogs.nytimes.com/2012/01/03/police-demographics-unit-casts- shadows-from-past/ If the above URL breaks-up, then try: http://tinyurl.com/79s6t8y I hope this information is useful or, at least, interesting. Regards, Walter Greenspan Great Falls, MT & Jericho, NY