| File # | Defendant | Plaintiff | Year |
| 02093 | Kanouse, Hester M. | Kanouse, George H. | 1875 |
| 01555 | Karner, S. H. | Gunther, L. | 1887 |
| 01812 | Karner, S. H. | Helms, L. R. | 1862 |
| 02313 | Karner, S. H. | Merrett, Alanson | 1877 |
| 02562 | Karner, S. H. | Merritt, Andrew | 1874 |
| 03349 | Karner, S. H. | Spafford, S. A. et al. | 1873 |
| 04214 | Karner, S. H. | Quinn, James | 1876 |
| 03282 | Karner, S. H. et al. | Scholfield, William | 1863 |
| 04007 | Karner, S. H. et al. | Whitney, Ebenezer | 1873 |
| 04137 | Karner, S. H. et al. | Wylie, D. B. | 1881 |
| 04352 | Karnopp, Charles et al. | Omega Separator Co. | 1906 |
| 04353 | Karzmarek, John | Monion, John | 1902 |
| 0354 | Kavaleski, A. et al. | Bischoff, August | 1884 |
| 0627 | Kavalevski, Andrew et al. | Bischoff, August | 1887 |
| 02049 | Keating, Lewis | Keating, Martha | 1876 |
| 02047 | Keeler, Jesse | Keeler, Cordelia | 1868 |
| 01688 | Keeler, Truman et al. | Hill, J. D. | 1870 |
| 0122 | Keenan, James | State Investment & Ins. Co. of California | 1892 |
| 02134 | Keeth, Samuel L. et al. | Larson, Elisha | 1848 |
| 02491 | Keley, Thomas | Mitchell, John R. | 1851 |
| 0166 | Kellar, C. J. et al. | Rogers, Geo. L. | 1895 |
| 054 | Kellar, Joseph C. | Kellar, Penelope J. | 1892 |
| 0123 | Kellar, Stanley E. | Schreier, Konrad | 1891 |
| 0128 | Kellar, Stanley E. | Joseph Schlitz Brewing Co. | 1891 |
| 0848 | Kellar, Stanley E. | Cerealine Mfg. Co. | 1890 |
| 0906 | Kellar, Stanley E. | Cook, R. A. | 1891 |
| 0885 | Kelley, Peter S. | Catlin, Esau | 1846 |
| 0714 | Kelley, Russell | Barns, D. A. A. B. as Adm'r &c. | 1849 |
| 01851 | Kellogg, H. S. | Hubbell, Gaylord B. et al. | 1855 |
| 0715 | Kellogg, H. S. et al. | Bennett, S. B. | 1853 |
| 02046 | Kellogg, Henry | Kellogg, Mattie A. | 1878 |
| 04030 | Kelly, Thomas et al. | Walters, John &c. | 1849 |
| 03118 | Kelsey, Harlow P. | Roberts, Edward | 1873 |
| 0421 | Kennedy, H. A. | Bigler, J. H. | 1875 |
| 02530 | Kennedy, H. A. | McLean, J. D. | 1876 |
| 01354 | Kennedy, J. J. | Fairfield, Clark | 1879 |
| 01707 | Kennedy, J. J. | Hagan, Samuel | 1879 |
| 01848 | Kennedy, Wm. H. | Bloomer & Holmes | 1850 |
| 02993 | Kentfield, Edmond D. | Riker, Hiram | 1858 |
| 01469 | Kerth, Samuel L. et al. | Graham, Chancey | 1847 |
| 0420 | Ketchum, Henry | Bue, Andrew | 1879 |
| 03059 | Kian, Joseph et al. | Rollins, Sam'l D. | 1847 |
| 04340 | Kiedrowski, Joseph | Kiedrowski, Mary | 1912 |
| 0264 | Kikel, Dorothea et al. | Adams, Helen M. | 1890 |
| 01989 | Kiley, Thomas | Kiley, Elizabeth | 1854 |
| 0843 | Kimball, Fred N. et al. | Clements, Eva | 1889 |
| 02048 | Kinder, Elihu | Kinder, Margaret | 1880 |
| 0962 | King & Briggs | Curtis, O. & C. B. | 1857 |
| 01514 | King, Mary C. et al. | Gray, Charles F. | 1886 |
| 02001 | King, S. W. et al. | King, Geo. W. | 1885 |
| 01565 | King, Sylvester | Grannis, Eli | 1862 |
| 02172 | King, Sylvester W. et al. | Lyon, Isaac R. | 1873 |
| 03003 | King, Wilson E. et al. | Roberts, Edward | 1873 |
| 03117 | King, Wilson E. et al. | Roberts, Edward | 1873 |
| 0908 | Kingsbery, H. W. et al. | Cochran, Thomas | 1849 |
| 03236 | Kingsbury, F. W. et al. | Slothower, John | 1883 |
| 03348 | Kingsbury, J. R. | Stevens Point Boom Co. | 1874 |
| 01164 | Kingston & Warner | Dugan, Daniel | 1850 |
| 03305 | Kingston, Paul et al. | Smith, Milo | 1860 |
| 02050 | Kinne, Catherine | Kinne, Willard N. | 1875 |
| 03989 | Kirwan, Frank G. | Wisconsin River Log Driving Ass'n. | 1886 |
| 04367 | Klabba, John | Klabba, Natalie | 1903 |
| 04389 | Klaysmith, Frank et al. | Klaysmith, Jacob | 1915 |
| 03283 | Kline, Adam | Scribner, Eli | 1885 |
| 03284 | Kline, Adam | Stewart, Jacob | 1887 |
| 02003 | Kline, Benjamin | Kline, Mary E. | 1889 |
| 02112 | Kline, Geo. Jr. | Lennd, Peter | 1847 |
| 02400 | Kline, George et al. | Martell, Oliver | 1851 |
| 01318 | Kline, George Jr. | Farris, I. & S. | 1846 |
| 02045 | Klinesmith, Jane | Klinesmith, James | 1875 |
| 01988 | Kloss, Sophrona | Kloss, Elnathan | 1892 |
| 0519 | Kluck, John | Benjamin, H. S. Wagon & Carriage Co. | 1884 |
| 0147 | Kluck, Joseph | Wiesner, Louis | 1891 |
| 04028 | Knickerbocker, John et al. | Wood, W. W. | 1859 |
| 02842 | Knight, C. B. et al. | Phelps, Nancy M. | 1880 |
| 01488 | Knitter, John | Grover, Peter | 1887 |
| 02067 | Knitter, John et al. | Kelley, Mary | 1889 |
| 01784 | Knop, Peter | Heil, Constantine | 1884 |
| 01959 | Knotz, Lorenz et al. | Johnson, John O. | 1890 |
| 02550 | Knox Bros. | Mohone, Edward | 1877 |
| 01618 | Knox, Wm. et al. | Hanson, Iver | 1873 |
| 03006 | Knox, Wm. H. et al. | Robb, James A. | 1870 |
| 03008 | Knox, Wm. H. et al. | Reed, Wm. A. | 1877 |
| 04168 | Knox, Wm. H. et al. | Wallace, William | 1876 |
| 0265 | Kocjieszkowski, John et al. | Andrae, G. F. | 1892 |
| 01969 | Koenig, Josephine | Koenig, George | 1868 |
| 0390 | Kollock & Wiggington | Bynner & Howard | 1859 |
| 0281 | Kollock & Wigginton | Armstrong Cornick & Co. | 1858 |
| 02938 | Kollock & Wigginton | Paine, Valorous A. | 1859 |
| 02202 | Kollock, H. & N. | Lamoreux, O. H. | 1875 |
| 03307 | Kollock, H. et al. | Springer, Joseph | 1888 |
| 02187 | Kollock, Henry | Littell, Thompson et al. | 1861 |
| 02204 | Kollock, Henry | Lewis, George S. | 1869 |
| 03465 | Kollock, Henry et al. | Scott, Thomas B. | 1877 |
| 04149 | Kollock, Henry et al. | Wisconsin Mfg. Co. | 1876 |
| 02052 | Kollock, Mary | Kollock, Geo. W. | 1851 |
| 01708 | Kollock, Nelson | Huet, Joseph | 1874 |
| 01564 | Kollock, W. et al. | Griswald, Joel P. | 1859 |
| 01800 | Kollock, Wellington et al. | Huiler, Barney N. | 1860 |
| 01990 | Kollock, Wellington et al. | Kollock, Nelson et al. | 1859 |
| 02482 | Kollock, Wellington et al. | Mitchell, Mathias | 1849 |
| 02843 | Kollock, Wellington et al. | Pond, Chas. H. et al. | 1860 |
| 01292 | Konopotski, Joseph et al. | Eiden, Nicholas | 1887 |
| 01953 | Kostick, Joseph | Janewzefski, John | 1888 |
| 02203 | Kranz, Fred. | Lubitz, August | 1873 |
| 02252 | Krembs, Katherine | Meinecke, Adolph | 1879 |
| 02044 | Kruger, Amelia | Kruger, August | 1882 |
| 04027 | Kruger, J. P. Jr. | Wisconsin River Lumber Co. | 1877 |
| 04391 | Kubisiak, John | Sullivan, Edna | 1915 |
| 02577 | Kubiszak, Valentine et al. | Muliarck, Joseph | 1886 |
| 02051 | Kuhl, Veronica | Kuhl, Adam | 1861 |
| 02996 | Kuklinski, Thos. | Rudzinski, August | 1876 |
| 04058 | Kunde, Wilhelm | White, Jennette | 1890 |
| 01818 | Kunde, Wm. et al. | Hammel, Jacob | 1887 |
| 04050 | Kurseviski, Martin et al. | Winecki, Andrew | 1884 |
| 01293 | Kurseviski, P. | Ellison, Wm. P. et al. | 1887 |
| 04053 | Kussman, Gottlieb | Werachowski, Jacob | 1869 |
| 01968 | Kussman, Mary | Kussman, Christoph | 1863 |
| 01541 | Kussmann, Gottleib | Goodrich, T. W. et al. | 1870 |