| Icicle Canal | 574 | Keiser, Chas. F. | 594 |
| Indian Silico | 407 | Keller, Frank F. | 181 |
| Indian Scare | 169 | Kellogg Saw Mill, The | 449 |
| Indian Torture | 153 | Kellogg, L. E. | 46 |
| Ingersol, E. D. | 108 | Kelly, Hugo | 525 |
| Irby, I. | 116 | Kelly, Father Daniel P. | 498 |
| Irwin, W. T. | 112 | Kelly, Hays | 525 |
| Israel, Andrew | 441 | Kennedy, R. C. | 247 |
| Kern, Paris | 245 | ||
| Jackson, Eugene | 107 | Kincherf, Nicholas | 391 |
| Jellison, Harvey | 204 | King, T. C. | 204 |
| Johnson, Andrew | 107 | King, W. W., Mr. & Mrs., | 249 |
| Johnson, J. M. | 301 | Kingman, M. M. | 486 |
| Johnson, A. P. | 376 | Kinzebach, O. W. | 252 |
| Johnson, Capt. Charles | 458 | Kirby, Mrs. Nellie | 285 |
| Johnson, Stewart | 469 | Kirkendall, H. W. D. | 497 |
| Jones, A. C. | 588 | Kitson, Norman | 515 |
| Jones-Shotwell Ditch | 588 | Kline, Geo. W. | 261 |
| Knapp, F. E. | 435 | ||
| Kamholts, Fred A. | 305 | Koontz, Rev. B. E. | 497 |
| Kampheur, John | 248 | Kunkle, Stephen | 414 |
| Keane, Jas. M. | 164 | Kyle, Chas. O. | 98 |
Source: Hull, Lindley M. A history of central Washington : including the famous Wenatchee, Entiat, Chelan and the Columbia Valleys, with an index and eighty scenic-historical illustrations. Spokane, Wash.: Press of Shaw & Borden Co., 1929.