Museums
| Name | Country | State | City | Updated by
  | Date |
|---|---|---|---|---|---|
| Massachusetts Historical Society | USA | MA | Boston | Anonymous | 09/24/2012 |
| Massachusetts State House | USA | MA | Boston | Anonymous | 09/24/2012 |
| Mathaf Gallery | UK | London | Anonymous | 10/09/2012 | |
| Mattatuck Museum | USA | CT | Waterbury | Anonymous | 09/24/2012 |
| McColl Fine Art | USA | NC | Charlotte | Anonymous | 09/24/2012 |
| McCord Museum | Canada | QC | Montreal | Anonymous | 08/27/2012 |
| McDonald Gallery | USA | D.C. | Washington | Anonymous | 09/24/2012 |
| McDougal Fine Art | USA | MA | Gloucester | Anonymous | 09/24/2012 |
| Private collection: James W. & Frances G. McGlothlin | USA | Unknown | Anonymous | 10/09/2012 | |
| Private collection: McKinley, Peg, South Mt. Hope | USA | MI | Carson City | Anonymous | 10/09/2012 |
Artists
| Name | Info | Years | Updated by | Date |
|---|---|---|---|---|
| McIntyre, Grace Hamilton | 1878 - 1962 | Alexander Lusher | 03/24/2012 | |
| Mathews, Arthur Frank | 1860 - 1945 | Anonymous | 03/31/2012 | |
| Nichols, Henry Hobart | 1869 - 1962 | Anonymous | 10/19/2012 | |
| Parrish, Maxfield | 1870 - 1966 | Anonymous | 05/19/2012 | |
| Parshall, DeWitt | 1864 - 1956 | Anonymous | 03/31/2012 | |
| Phillips, Jay Campbell | 1873 - 1948 | Anonymous | 03/31/2012 | |
| Cloriviere, Joseph-Pierre Picot de Limoelan de | 1768 - 1826 | Anonymous | 05/15/2012 | |
| Pillement, Follower of Jean-Baptiste | 1727 - 1808 | Anonymous | 03/30/2012 | |
| Porter, John S. | Active ca. 1820 | Anonymous | 03/30/2012 | |
| Pope, Alexander | 1849 - 1924 | Alexander Lusher | 03/18/2012 |
