From The Peopling of New York City
Photo Credits:
1.http://www.google.com/imgres?imgurl=http://www.businessweek.com/managing/economic_recovery/blog/archives/harry-truman-picture.jpg
2. http://ecx.images-amazon.com/images/
3. http://aceproject.org/regions-en/countries-and-territories/PR/PR_map/image
4. http://www.streetplay.com/photos/images/
5. http://freepages.genealogy.rootsweb.ancestry.com/
6. http://www.wastedspacez.com/wastedideaz/wp-content/uploads/2010/02/horse-and-buggy.jpg
7. http://oak.cats.ohiou.edu/~cookt/images/history/ice_man.jpg
8. http://www.jphs.org/storage/ice_harvest/jp-ice-wagon.jpg
9. http://www.nemahaweb.com/early125/genericphotos/icebox.jpg
10. http://www.michianaantiquemall.com/images/ephemera/b55sears1903.jpg
11. http://concealedcash.com/blog/wp-content/uploads/2008/11/milkman.jpg
12.http://1.bp.blogspot.com/_IA5nokOFh84/Ro6nY55dxrI/AAAAAAAAATw/O28bgEPIf7I/s400/sweatshop.jpg
13. http://farm3.static.flickr.com/2669/3745653747_69c2b404f7_m.jpg
14. http://images.topix.com/gallery/up-30T012I5APKIN59H.jpg
15. http://cinematreasures.org/images/photos/268.jpg