On October 21, 2008, Northern York County Regional Police Officer David D. Tome was killed in the line of duty after being struck by a vehicle on Route 15 in Franklin Township, York County. After Tome's death, an informal gathering was held at the memorial for fallen first responders located at the York County Department of Emergency Services building at 120 Davies Drive in Springettsbury Township. A plaque bearing Tome's name was added to the memorial, and flowers were placed on the memorial in honor of Tome.
Corporal L. James Thomas of the Lower Windsor Township Police Department had been attending the National Law Enforcement Memorial Week events in Washington D.C. for a number of years, and felt that the time was right to hold an official fallen officers memorial for local law enforcement officers that died in the line of duty in York County. Thomas, who was a member of the board of directors for the Police Heritage Museum asked the museum to sponsor the event. The board of the Police Heritage Museum eagerly agreed.
The first fallen officer memorial ceremony was held on Friday, May 7, 2010 at the York County Department of Emergency Services building. That first service honored four officers that were killed in the line of duty in York County, as well as a fifth officer that resided in York County and was killed in an incident in New Cumberland, Cumberland County, Pa. Representatives for the fallen officers laid roses on the memorial for each fallen officer.
The ceremony continued in 2011, with Wildlife Conservation Officer David Grove being recognized. Grove, whose patrol area included a portion of York County, was killed in the line of duty in November of 2010 in Adams County. Emergency dispatchers from York County's 911 Center joined the cause, providing a reception following the ceremony at the Emergency Services building.
Through the years, additional fallen officers have been added to the memorial and the memorial service. The memorial service is held annually in May of each year, just prior to the Police Week activities in Washington D.C.