Publishers - I-J
| Name | Potter | Year |
|---|---|---|
| I. H. M. Press | 397 | 1910 |
| Ideal Publishing Union | 985 | 1899 |
| Ideal Publishing Union | 987 | 1899 |
| Innes & Sons | 1027 | 1913 |
| Innes, A. D. & Co. | 977 | 1895 |
| Jack, T.C. & E.C. | 39 | 1907 |
| Jacobs, George W. | 5 | 1907 |
| Jacobs, George W. | 17 | 1903 |
| Jacobs, George W. | 35 | 1906 |
| Jacobs, George W. | 44 | 1908 |
| Jacobs, George W. | 58 | 1910 |
| Jacobs, George W. | 115 | 1920 |
| Jacobs, George W. | 259 | 1906 |
| Jarvis & Foster | 1125 | 1906 |
| Jennings & Graham | 934 | 1906 |
| Jennings & Graham | 934 | 1914 |
| Jerome Co., T. | 1131 | 1907 |
| Johnson, R. Brimsley | 17 | 1903 |
| Johnson, R. Brimsley | 999 | 1904 |
| Johnston, George P. | 975 | 1895 |