- 1 Harris, William (manure)
- 2 Harrisburg Car Manufacturing Co.
- 7 Harrisburg, Pennsylvania
- 1 Harrisburg, Pennsylvania
- 4 Harrison Boiler Works
- 1 Harrison Bros. & Co.
- 1 Harrison Bros. & Co. Gray's Ferry Chemical Works
- 1 Harrison Building
- 1 Harrison Dye Works
- 2 Harrison Mansion
- 4 Harrison, Joseph, 1810-1874
- 3 Harrison, Lou, 1917-2003
- 1 Harrock's Bleaching Mill
- 1 Harrow, England (borough)
- 2 Harrowgate Hotel
- 2 Harrowgate Hotel
- 2 Harrows
- 1 Harry Edward's Saloon
- 1 Harry T. Kingston, Attorney at Law
- 3 Harshaw , Fuller & Goodwin Glycerine Factory
- 1 Hart, John S. (John Seely), 1810-1877
- 5 Hart, Son, Peard & Co.
- 7 Hartel Avenue
- 2 Hartel, A. & Co.-Pennypack Print Works
- 1 Hartford (Soda fountain)
- 3 Hartford Steam Boiler Inspection & Insurance Co.
- 1 Hartford, Connecticut
- 1 Hartland, H. G.
- 1 Hartmann, Laist & Co.
- 9 Hartranft Street
- 12 Hartranft, Pennsylvania
- 1 Hartville Street
- 1 Hartwell Park
- 1 Harvard University
- 1 Harveian Literary Institution
- 15 Harvesting
- 4 Harvesting machinery
- 1 Harvey & Adamson Philadelphia Terra Cotta Works
- 1 Harvey Building
- 1 Harvey Fibre Carpet Co.
