| Mukilteo & Lake Washington Railway, Mukilteo, WA |
504 |
| Mukilteo Logging Co., Mukilteo, WA |
379 |
| Murphy Timber Co., Yacolt, WA |
431 |
| Mutual Lumber Co. No. 2, Bucoda, WA |
1011 |
| Mutual Lumber Co. No. 3, Bucoda, WA |
1003 |
| Mutual Lumber Co. No. 4, Bucoda, WA |
411 |
| Mutual Lumber Co. No. 5, Bucoda, WA |
1616 |
| Mutual Lumber Co. No. 6, Bucoda, WA |
1643 |
| Mutual Lumber Co. No. 7, Bucoda, WA |
1515 |
| Mutual Lumber Co. No. 8, Bucoda, WA |
1670 |
| Napavine Lumber & Manufacturing Co., Napavine, WA |
272 |
| Niagara Logging Co., Raymond, WA |
1219 |
| Ninemire & Morgan Lumber Co. Rochester, WA |
189 |
| Ninemire & Morgan Lumber Co., Rochester, WA |
672 |
| Nippon Lumber Co., Alpine, WA |
243 |
| Nippon Lumber Co., Alpine, WA |
371 |
| Nooksack Timber Co., Deming, WA |
1591 |
| Nordby & Scott, Inc. Klickitat, WA |
674 |
| North Bend Timber Co. No. 3, North Bend, WA |
1652 |
| North Shore Logging Co., Knappton, WA |
X552 |
| North Western Lumber Co. No. 3, Hoquiam, WA |
381 |
| North Western Lumber Co., Hoquiam, WA |
1163 |
| North Western Lumber Co., Hoquiam, WA |
1545 |
| North Western Lumber Co., Hoquiam, WA |
1081 |
| Northern Lumber Co., Morton, WA |
1357 |
| Oakland Bay Logging Co., Shelton, WA |
916 |
| Ohio Timber Co. No. 1, Seattle, WA |
504 |
| Oso Logging Co. No. 1, Oso, WA |
658 |
| Oso Logging Co. No. 902, Oso, WA |
902 |
| Ostrander Railway & Timber Co. No. 348, Ostrander, WA |
642 |
| Pacific Car & Foundry Co. No. 12, Renton, WA |
568 |
| Pacific Car & Foundry Co. No. 23, Renton, WA |
160 |
| Pacific Cedar Co., Raymond, WA |
284 |
| Pacific National Lumber Co., Ashford, WA |
1439 |
| Pacific States Lumber Co. No. 3, Cedar Falls, WA |
437 |
| Pacific States Lumber Co., Cedar Falls, WA |
1519 |
| Pacific Steel Co., Irondale, WA |
708 |
| Packwood Logging Co., Bucoda, WA |
X556 |
| Panther Lake Co. No. 1, Three Lakes, WA |
351 |
| Panther Lake Co. No. 2, Three Lakes, WA |
530 |
| Panther Lake Co. No. 4, Three Lakes, WA |
1409 |
| Panther Lake Co., Three Lakes, WA |
1027 |
| Parker, J. H. - Logging Co., Getchell, WA |
X228 |
| Parker-Bell Lumber Co. No. 3, Pilchuck, WA |
680 |
| Parker-Bell Lumber Co. No. 4, Pilchuck, WA |
1081 |
| Parker-Bell Lumber Co. No. 5, Pilchuck, WA |
1581 |
| Parker-Bell Lumber Co., Pilchuck, WA |
X324 |
| Parker-Bell Lumber Co., Pilchuck, WA |
X228 |
| Peninsular Railway No. 4, Shelton, WA |
1279 |
| Peterson Brothers, Redmond, WA |
379 |
