| PATENTEE | ISSUE DATE | DISTRICT OFFICE | DOC. NO. | ACCESSION OR SERIAL NO. |
| MAITLAND, HARRY | 11-09-1910 | O'NEILL | 01824 | 160763 |
| MAJORS, FRANK | 05-27-1913 | O'NEILL | 0626 | 337552 |
| MALLOY, HETTIE M. | 09-11-1916 | O'NEILL | 04064 | 545204 |
| MANSFIELD, HARVEY K. | 12-07-1911 | O'NEILL | 02242 | 236974 |
| MANSFIELD, HARVEY K. | 03-12-1908 | O'NEILL | 7050 | 0747-255 |
| MANSFIELD, HARVEY W. | 06-25-1913 | O'NEILL | 02820 | 343392 |
| MARICK, SAMUEL H. | 01-06-1913 | O'NEILL | 02501 | 307813 |
| MARICK, THOMAS E. | 01-06-1913 | O'NEILL | 02502 | 307814 |
| MARLOW, JOHN E. | 11-05-1912 | O'NEILL | 02699 | 299051 |
| MARSHALL, HARLAN B. | 01-06-1913 | O'NEILL | 0324 | 307783 |
| MARTENS, WILHELM | 04-25-1910 | O'NEILL | 01333 | 127136 |
| MARTIN, FRANK G. | 11-11-1912 | O'NEILL | 02316 | 299985 |
| MASON, EDWARD D. | 03-06-1911 | O'NEILL | 01717 | 181664 |
| MATHEWS, WILLIAM H. | 11-05-1908 | O'NEILL | 7190 | 27269 |
| MATTLEY, JOHN S. | 11-24-1916 | O'NEILL | 04132 | 555857 |
| MAULER, FRANK J. | 09-03-1914 | O'NEILL | 03516 | 429185 |
| MAVES, BENJAMIN C. | 07-14-1910 | O'NEILL | 02966 | 144452 |
| MCALLISTER, CHARLES W. | 11-04-1912 | O'NEILL | 0814 | 298913 |
| MCCLINTIC, JOHN NELSON | 05-11-1911 | O'NEILL | 02181 | 197091 |
| MCCLINTIC, WALTER | 07-18-1912 | O'NEILL | 01608 | 285167 |
| MCCLINTIC, WALTER | 10-26-1908 | O'NEILL | 7168 | 24681 |
| MCDANNEL, AUGUSTUS L. | 04-14-1910 | O'NEILL | 01052 | 125239 |
| MCDANNEL, AUGUSTUS L. | 04-04-1910 | O'NEILL | 01636 | 125270 |
| MCDANNEL, FREDRICK E. | 04-05-1911 | O'NEILL | 01843 | 188537 |
| MCDANNEL, FREDRICK E. | 02-07-1910 | O'NEILL | 0778 | 109855 |
| MCDERMOTT, CLAIRE | 06-24-1914 | O'NEILL | 02656 | 417187 |
| MCDERMOTT, LUKE | 09-03-1912 | O'NEILL | 01753 | 289769 |
| MCDERMOTT, MARY E. | 04-05-1911 | O'NEILL | 01768 | 188534 |
| MCDERMOTT, THOMAS | 01-11-1912 | O'NEILL | 01770 | 241907 |
| MCDERMOTT, WINNIE C. | 10-23-1912 | O'NEILL | 01767 | 297831 |
| MCGOWAN,JAMES | 02-15-1922 | LINCOLN | 02469 | 849286 |
| MCGUIRE, MARTIN VAN BUREN | 09-20-1915 | O'NEILL | 04208 | 490590 |
| MCINTYRE, AMBROSE E. | 02-03-1916 | O'NEILL | 03793 | 511542 |
| MCINTYRE, COLONEL LEROY | 09-22-1914 | O'NEILL | 03674 | 432540 |
| MCKIMMEY, EDWARD L. | 10-02-1911 | O'NEILL | 072 | 227845 |
| MCKINNEY, CLARKSON B. | 03-26-1913 | O'NEILL | 02625 | 321916 |
| MCLEAN, ALEXANDER B. | 05-27-1913 | O'NEILL | 0354 | 337546 |
| MESSERSMITH, ALFRED | 02-14-1910 | O'NEILL | 01144 | 111502 |
| MESSERSMITH, JAMES C. | 04-14-1910 | O'NEILL | 02752 | 125272 |
| MILLER, CHARLES K. | 07-08-1912 | O'NEILL | 02105 | 282469 |
| MITCHELL, CHARLES | 06-13-1910 | O'NEILL | 01061 | 136568 |
| MITCHELL, CHARLES | 06-13-1910 | O'NEILL | 01225 | 136569 |
| MITCHELL, HARRY | 05-21-1908 | O'NEILL | 7077 | 0776-020 |
| MITCHELL, HARRY | 09-28-1908 | O'NEILL | 7122 | 16893 |
| MITCHELL, WILLIAM | 06-23-1910 | O'NEILL | 01793 | 139915 |
| MITCHELL, WILLIAM | 06-23-1910 | O'NEILL | 0994 | 139888 |
| MITTAN, ELMER E. | 12-17-1915 | O'NEILL | 03348 | 503880 |
| MOLESWORTH, JOHN | 03-26-1913 | O'NEILL | 02576 | 321914 |
| MONINGER, JOHN E. | 12-27-1918 | O'NEILL | 04223 | 657229 |
| MONINGER, WILLIAM H. | 03-07-1911 | O'NEILL | 01193 | 182451 |
| MOORE, FRANCIS A. | 06-24-1914 | O'NEILL | 02454 | 417185 |
| MOYER, OLIVER | 10-02-1911 | O'NEILL | 01493 | 227862 |
| MUGGY, CHARLES D. | 08-19-1912 | O'NEILL | 02370 | 288784 |
| MURRAY, CHARLES L. | 04-20-1911 | O'NEILL | 01443 | 191892 |
| MURRAY, WILLIAM W. | 04-20-1911 | O'NEILL | 01445 | 191893 |
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