| Source: Roster and By-Laws, Porto Rican Association of Battery A, Missouri Volunteers, 1910 Location: Alphabetical Files – Papin, Joseph Vion, Archives | |
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| Last Name: | Janis |
| First Name: | P. |
| Middle Name: | A. |
| Rank: | Private |
| Source: Roster and By-Laws, Porto Rican Association of Battery A, Missouri Volunteers, 1910 Location: Alphabetical Files – Papin, Joseph Vion, Archives | |
![]() | |
| Last Name: | Janis |
| First Name: | P. |
| Middle Name: | A. |
| Rank: | Private |