Nummer: 10013
| Area : | Western Area |
| Sea area : | Central Atlantic |
| Date of attack : | 03.06.1942 |
| Time of attack : | 04:10 |
| Nationality of U-boat : | German |
| U-boat : | U 172 |
| Commander : | Emmermann |
| Grid : | DO 6724 |
| presumed target type : | Steam Freighter |
| presumed tonnage : | 5000 BRT |
| presumed result : | sunk |
| Used weapon(s) : | Torpedo(es) |
| Date of observation : | 02.06.1942 |
| Time of observation : | 22:10 |
| Nationality of target : | American |
| Actual type of target : | Steam Freighter |
| Name of target : | City of Alma |
| Year of launch : | 1920 |
| Actual tonnage : | 5446 BRT |
| Actual result : | sunk |
| Position of target : | 23.00n 62.30w |
| Footnote : | U-159/Witte und U-172/Emmermann each claimed the sinking of a type "Hog Island" steamer. Following KTB U-172 an the exact time of attack it was possible to decide, that U-172 sank "City of Alma" and U-159 "Illinois". |
| updated on: | 08.04.2022 |
| Remark: | ANM |
| Changes: | 1) Zimmerman x.1998: 02/2210 City of Alma 2) Kolbicz (L2) 04.2002: Anm. 4 löschen (F) 3) W. Cloots 08.04.2022: Dt. Fußnote korrigiert |