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- Jackson, James C., 1811-18956
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- James W. Queen & Company, author.6
- Jennings, Samuel K. (Samuel Kennedy), 1771-18546
- Johnson, Christian, MPH, author6
- Jones, I. G. (Ichabod Gibson), 1807-18576
- Keating, Betsy, author6
- Keating, John M. (John Marie), 1852-1893, author6
- Kipp, Charles J. (Charles John), 1838-1911, author6
- Kirkpatrick, Charles M., author6
- Knapp, Frederick Newman, 1821-18896
- Kulmus, Johann Adam, 1689-17456
- Küntscher, Gerhard, author6
- La Roche, R. (René), 1795-18726
- Lambert, T. S. (Thomas Scott), 1819-18976