| Source: "The Warr-ior: The Bulletin of the St. Louis Training School for Nurses Alumnae," 1908, 1932-1967 (early issues are titled "Quarterly Bulletin of the St. Louis Training School for Nurses Alumnae"). Location: St. Louis City Hospitals Schools of Nursing Records, Box 13, Archives | |
 | |
| Last Name: | Helmsing |
| First Name: | Mary |
| Maiden Name: | Mattaroz |
| Maiden Name, Alternate Spelling: | Mattarozi |
| Address: | 5034 Exeter |
| Volume: | XXX |
| Issue: | 3 |
| Date of Publication: | December 1938 |
| Page: | 5 |
| Remarks: | listed in roster of St. Louis Training School for Nurses Alumnae |
