During the 1864 Indian Wars, Ft Kearny was a refuge for the Pioneers as well as a place to get supplies.
Here is some more information on Fort Kearny with some Teaching Activities linked at the bottom of the page: http://www.nebraskastudies.org/0400/frameset_reset.html?http://www.nebraskastudies.org/0400/stories/0401_0135.html