There is a short biography for Myrtle Porterville at Finding Aid to the Myrtle (Bemis) Porterville Collection at the Institute for Regional Studies in Fargo. There are 22 Boxes of information and parts of 5 of them have been scanned and posted here.
The Finding Aid to the Myrtle Porterville Photograph Collection contains hundreds of folders and each folder contains numerous photographs of this area.;
| Description | ▲ Source Boxes (see above) |
| 8th Grade Student Biographies | Box 6 Folder 13 to Folder 19 (A-J) Box 7 Folders 1 to 9 have not been scanned yet (K-Z) |
| Biographies from 1910 Griggs County Atlas | Box 2 Folder 29 |
| Biographies Condensed from History of North Dakota by W.B. Hennessy 1910 | Box 2 Folder 30 |
| Biographies included in Nordmænd og Norske Hjem I Amerika (Nordmænd og Norske Hjem I Amerika) | Box 2 Folder 31 |
| Biographies from the Norwegian Lutheran Church 1914 | Box 2 Folder 32 |
| Biographies from The Record by Lounsberry | Box 2 Folder 33 |
| Birth Records | Box 4 Folder 30 has been scanned Box 4 Folders 11 to 29 have not been scanned yet. |
| Courier Articles on Cooper Brothers | Jan 10, 1957 to Feb 21, 1957 Courier |
| Death Records | Box 4 Folder 37 |
| Family Histories | Box 1 Folder 19 to Box 2 Folder 28 |
| Family Notes | Box 2 Folders 34 to 36Box 3 Folders 1 to 27 and Box 4 Folders 1 to 10 have not been scanned yet. |
| Marriage Records | Box 4 Folder 31 to Folder 36 |
| Newspaper clippings | Box 4 Folder 38 to Box 6 Folder 12 |