Captain Mary Hartelius, along with her sister Annie, was a Swedish immigrant to the United States. They commanded the first Scandinavian corps there (Brooklyn No. 3).
| Captain Mary Hartelius | |
|---|---|
| Rank | Captain |
| Relations | Captain Annie Hartelius (sister) |
| Appointment | Rank | From | Until |
|---|---|---|---|
| Corps Officer - Brooklyn No. 3, NY | Captain |