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 |
|---|---|---|---|---|
| Satra, August | 1877 - 1909 | Anonymous | 05/22/2012 | |
| Schafer, Frederick Ferdinand | 1839 - 1927 | Anonymous | 05/22/2012 | |
| Semon, John | 1852 - 1917 | Anonymous | 05/22/2012 | |
| Shackleton, Charles | 1856 - 1920 | Anonymous | 05/22/2012 | |
| Shilling, Alexander | 1859 - 1937 | Anonymous | 05/22/2012 | |
| Simmons, Freeman Willis | 1859 - 1926 | Anonymous | 05/22/2012 | |
| Smith, Rufus Way | 1840 - 1900 | Anonymous | 05/22/2012 | |
| Smith, Xanthus Russell | 1839 - 1929 | Anonymous | 05/22/2012 | |
| Stanton, Lucy May | 1875 - 1931 | Anonymous | 10/13/2012 | |
| Stephens, Alice Barber | 1858 - 1932 | Anonymous | 05/22/2012 |
