| Artist | Titles | 1.
| Hartley, Jonathan Scott, 1845-1912, sculptor. | 56 | 2.
| Hartley, Marsden, 1877-1943, painter. | 814 | 3.
| Hartley, Marsden, 1877-1943, painter. (attributed to) | 1 | 4.
| Hartley, Rachel, 1884-1955, painter. | 0 | 5.
| See: Hartley, Rachel V., 1884-1955, painter. | 9 | 6.
| Hartley, Rachel V., 1884-1955, painter. | 9 | 7.
| Hartley, T. S., sculptor. | 1 | 8.
| Hartley, W. D., 1921- 2006, sculptor. | 0 | 9.
| See: Hartley, W. Douglas, 1921-2006, sculptor. | 21 | 10.
| Hartley, W. Douglas, 1921-2006, sculptor. | 21 | 11.
| Hartley, William Douglas, 1921-2006, sculptor. | 0 | 12.
| See: Hartley, W. Douglas, 1921-2006, sculptor. | 21 | 13.
| Hartley, Wm. Douglas, 1921-2006, sculptor. | 0 | 14.
| See: Hartley, W. Douglas, 1921-2006, sculptor. | 21 |
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