Irish Immigraton

http://en.wikipedia.org/wiki/Dead_Rabbits (Dead Rabbits)
http://en.wikipedia.org/wiki/Bowery_Boys (Bowery Boys)
http://en.wikipedia.org/wiki/Roach_Guards (Roach Guards)
http://en.wikipedia.org/wiki/Forty_Thieves_%28New_York_gang%29 (Forty Thieves)
http://en.wikipedia.org/wiki/Daybreak_Boys (Day Break Boys)
http://en.wikipedia.org/wiki/Plug_Uglies (Plug Uglies)
http://en.wikipedia.org/wiki/Shirt_Tails (Shirt Tales)
http://theboweryboys.blogspot.com/2008/08/dead-rabbits-were-they-ever-al... (Dead Rabbits)
http://arcana.wikidot.com/bowery-boys (Bowery Boys)
http://theboweryboys.blogspot.com/2009/03/beware-40-thieves-very-first-g... (Forty Thieves)
http://www.myrtle-avenue.com/daybreak/background.html (DayBreak Boys)
http://ezinearticles.com/?The-Dead-Rabbits-Irish-Street-Gang&id=5371970 (dead rabbit/ bowery boys/ roach guards)
http://history1800s.about.com/od/urbanconditions/p/fivepointsnyc.htm (five point neighborhood)
http://theboweryboys.blogspot.com/2009/03/beware-40-thieves-very-first-g... (40 thieves)
http://www.urbanography.com/5_points/ (five points of New York)
http://www.achildofthejago.com/news/2010/2/18/the-shirt-tails.aspx (shirt tails)
http://www.baltimoreorless.com/2012/04/plug-uglies-the-gang-with-their-o... (plug uglies)
http://www.awesomestories.com/flicks/gangs-newyork/dead-rabbits-vs-the-b... (bowery boys vs. dead rabbits)
http://library.thinkquest.org/20619/Irish.html (Irish immigration)
http://www.spartacus.schoolnet.co.uk/USAEireland.htm (Irish immigration with primary sources at bottom)
http://www.kinsella.org/history/histira.htm (Irish immigration)
http://www.america.gov/st/peopleplace-english/2008/February/200803071314... (Irish immigration)
http://www.historyplace.com/worldhistory/famine/america.htm (Irish immigration)