This marker is dedicated to the memory of
John H. Dillingham
Sheriff of Platte County, Missouri
from 1896 to 1900
First law enforcement officer killed in the line of duty in Platte County
Killed on this spot on August 20, 1900, by Dr. Sterling Price Harrington when Sheriff Dillingham attempted to arrest him for the murders of James Wallace and Mary Wallace, both of whom were killed by Dr. Harrington earlier on August 20, 1900.
Deputy Sheriff Henry Dillingham, Sheriff Dillingham's son, returned Dr. Harrington's gunfire and killed Dr. Harrington, also on this spot.
Dedicated by the Dillingham and Farley Families, descendents of John H. Dillingham and the Wallaces