- 1 Lind, Jenny (1820-1887)
- 1 Lind, Jenny, 1820-1887
- 3 Lindbergh Boulevard
- 1 Lindbergh Kidnapping
- 3 Lindley Avenue
- 2 Line Lexington, Pennsylvania
- 1 Lineaweaver & Wallace Printers & Publishers
- 1 Linehan see Green & Linehan
- 7 Linen industry
- 5 Linens
- 2 Lines (geometric concept)
- 1 Lingham, Conway
- 1 Link Bros. Philadelphia Terra Cotta Works
- 1 Link-Belt Company
- 2 Linley Street
- 11 Linocuts (prints)
- 4 Linoleum
- 4 Linoleum blocks
- 9 Linoleum-block printing
- 4 Linseed oil
- 2 Linwood, Pennsylvania
- 58 Lions
- 1 Lippen's Hotel
- 1 Lippincott, J. B. (Joshua Ballinger), 1813-1886
- 1 Lippincott, L. K. (Leander K.)
- 1 Lipsticks
- 1 Liqueurs
- 4 Liquor stores
- 1 Lister, Alfred Brooks
- 1 Liston, John, 1776-1846
- 3 Lists (document genres)
- 9 Lit Brothers
- 1 Literary Association of the Friends of Poland (London, England)
- 2 Literary criticism
- 22 Literary works
- 2 Literature (writings)
- 2 Lithographers
- 1 Lithographic engraving (printing process)
- 217 Lithographs
- 7 Lithography