Shortly after the first vehicle's creation, fleets of herdics were purchased and used to create systems of inexpensive mass transportation in multiple major metropolitan across the United States,[8][9][10][11][12][13] bolstering Peter Herdic's status as a successful inventor[14][15] and millionaire.[16][17][18]
Herdics were particularly successful in Washington, D.C., becoming the transportation method of choice during inclement weather due to the cab's rear entrance design, which enabled drivers to back their vehicles up to sidewalks and buildings so that their passengers could enter the cabs more quickly than they would with traditional hansom cabs.[19]
The first herdic was used in Washington, D.C. in 1888.[20] The last surviving herdic in operation in Boston, Massachusetts was owned and driven by Daniel C. Harris in 1910. His horse's name was Billy.[21]
^"Peter Herdic (1824-1888) Historical Marker," in "ExplorePAhistory.com." Harrisburg, Pennsylvania: Pennsylvania Historical and Museum Commission, retrieved online December 16, 2022.
^Newly-patented Coaches of Peter Herdic, in "City and Country." Altoona, Pennsylvania: The Altoona Tribune, October 7, 1880, p. 3 (subscription required).
^Vehicle Patent of Peter Herdic." Canton, Pennsylvania: The Canton Independent-Sentinel, April 23, 1880, p. 8 (subscription required).
^"Peter Herdic's Patent." Philadelphia, Pennsylvania: The Philadelphia Times, April 21, 1880, front page (subscription required).
^Letters Patent Granted to Peter Herdic, in "Keystone Notes." Harrisburg, Pennsylvania: Harrisburg Telegraph, April 21, 1880, front page (subscription required).
^"Boston's Surviving Herdic" (article with photo and caption). Boston, Massachusetts: The Boston Globe, September 18, 1910, p. 60 (subscription required).