External link
Park Service biography (http://www.nps.gov/jeff/LewisClark2/Circa1804/WestwardExpansion/EarlyExplorers/ZebulonPike.htm)
... households out of which 38.0% have children under the age of 18 living with them, 48.7% are married couples living together, 20.9% have a female householder with no ...