- Keating, William Hypolitus1
- Kemble, William, 1795?-18811
- Keulen, Gerard van1
- Kneass & Delleker1
- Kyser, J., active 1718-17401
- Lens, Bernard, 1659-17251
- Libraries1
- Lithographic Establishment, Quarter Master Generals Office Horse Guards.1
- Lodge, John, -17961
- Long, Stephen H. (Stephen Harriman)1
- Lotter, Georg Friedrich1
- Lotter, Matthäus Albrecht, 1741-18101
- Mackenzie, Alexander, 1764-18201
- Major, Sieur, engraver1
- Map Library1
- Mariette, Pierre1
- McClelland, Robert, 1807-1880, former owner.1
- Michigan State University1
- Millar, George Henry1
- Mortier1