John, Go to this web site, http://library5.library.cornell.edu/ Cornell Univ. is doing research on Harlem. On that site is a book written by James Riker. If I remember correctly here is how you get thru the mase to find the book. Click Manufacturing icon, click search, type in Waldron, select books. Book #8 should be the History of Harlem. It is downloadable. Good Luck. Mike