約翰·羅爾
Chartered in 1900 by a group of local landowners and acquired in 1902 by John Roll McLean (owner of "The Washington Post") and Senator Stephen Benton Elkins, the 15-mile electrified railroad began operating from Georgetown in Washington, D.C., in 1906. The first scheduled car reached Great Falls Park in Fairfax County, Virginia, on July 3 of that year.