| Source: Southwestern Telephone News (St. Louis: Southwestern Bell Telephone Co.), 1917-1955 (incomplete run) Location: St.L. / 05 / So89 | |
 | |
| Last Name: | Singleton |
| First Name: | Marvin |
| Middle Name: | E. |
| Portrait: | Yes |
| Birth Year: | 1872 |
| Volume: | 20 |
| Issue: | 2 |
| Date of Publication: | Spring 1933 |
| Page: | 7, 16 |
