The Knights of Pythias, a society based on the Greek story of friendship from 400 B. C. between Damon and Pythias, became the very first fraternal organization to receive a charter under an Act of the United States Congress.  The KP symbolism can be found in many cemeteries with their fraternal symbols that come in many forms.  Milwaukee must have had an active Knights of Pythias organization because there are many of the markers in the Forest Home Cemetery.