Danielle(posted 8126 days ago)Go here: http://kodak.com/US/en/corp/features/brownieCam/index.shtml
or here: http://photo.ucr.edu/cameras/brownies/TheKodakBrownie.html
These give a bit of history, maybe even a bit specific to what you are planning to talk about. Also try looking at the book "History of Photography" by Beaumont Newhall
Peter