- COORDINATES: 40.058305, -76.567979
- COUNTY: Lancaster
- DISTANCE TO NEXT: Columbia - 6
- EXPLANATION OF NAME: Named for Mary and Henrietta Anderson
- FOUNDED: 1719
- MANUFACTURER: ?
- SHAPE: Standard 1-sided
- STATUS: Original post missing. Was mounted on pipe.
As of January 2013 this marker was in Borough Maintenance garage.

Undated photo by N. Clair Clawser

Borough of Marietta
North Decatur Street at Wasp Street