The Pennsylvania State Police was created as an executive department of state government by legislation, Senate Bill 278, signed into law by Governor Samuel W. Pennypacker on May 2, 1905. The department became the first uniformed police organization of its kind in the United States and a model for other state police agencies throughout the nation.
The State Highway Patrol was created in 1923 within the Department of Highways to enforce the vehicle laws of Pennsylvania's burgeoning highway system.
On June 29, 1937 the Pennsylvania Highway Patrol was merged with the State Police. The new department was called the Pennsylvania Motor Police. Act 52 of April 28, 1943, changed the name of the organization from the Pennsylvania Motor Police to the Pennsylvania State Police.
The above information was supplied by the Pennsylvania State Police Historical, Educational and Memorial Center
After researching the period newspapers, the staff of the Police Heritage Museum has compiled a list of the various buildings in York County that have been used to house the headquarters and officers of the state police since 1924.