Isabel B. Wiley
| Name | Isabel B. Wiley |
| Type | Sailing vessel |
| GRT | 776 tons |
| Country |  American |
| Built | 1906 |
| Builder | New England SB Co., Bath, ME |
| Operator | Atlas Shipping, Philadelphia |
| History | Wooden schooner. |
U-boat attacks on Sailing vessel Isabel B. Wiley
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 2 Jun 1918 | U 151 (Heinrich von Nostitz und Jänckendorff) | Sunk | Stopped and scuttled off Barnegat, NJ | Perth Amboy - Norfolk | 0 |
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