The presence of one colored family in a block, no matter how well-bred and orderly, was sufficient to precipitate a flight. House after house and block after block was actually deserted. It was a great demonstration of human beings running amuck. None of them stopped to reason why they were doing it or what would happen if they didn't. The banks and the lending companies holding mortgages on these deserted houses were compelled to take them over. For some time they held these houses vacant, preferring to do that and carry the charges than to rent or sell them to colored people. But values dropped and continued to drop until at the outbreak of the war in Europe property in the northern part of Harlem had reached the nadir."
With the war came a critical shortage of common labor and the introducing of thousands of southern Negroes into northern industrial and civic centers. A great migration took place. Negroes were in search of a holy grail. Southern Negroes, tired of moral and financial blue days, struck out for the promised land, to seek adventure among factories, subways and skyscrapers. New York, of course, has always been a magnet for ambitious and adventurous Americans and foreigners. New York to the
