From Johnson To McKinley: A Presidential Timeline in Multimedia. This site has a nice Post Civil War timeline. Nine Presidents are covered and each has his own page. There are essays mixed with pictures and cartoons. It is a nicely put together resource.
This is part of a larger site called the Authentic History Center. The site notes that it is, "comprised of artifacts and sounds from American popular culture. It was created to teach that the everyday objects in society have authentic historical value and reflect the social consciousness of the era that produced them. Authentic also means conforming to fact, and therefore worthy of trust, reliance, or belief."