Seahaven was established around 1899, with land owned by realtor Thomas Potter. Located at the mouth of the Willapa River,[2] it was mapped by Potter, who leased properties there and in South Bend.[3] By 1890, the town had established a bank as well as a newspaper publisher.[2] In September 1890, a post office was established, with Granville S. Loomis serving as the postmaster.[4] It remained in operation until 1891.[5] Following Potter's death in 1901, his will was left with a 63-year-old woman he was going to marry, which included the grounds of Seahaven.[3][6] Seahaven eventually went extinct by the early 20th century, with its businesses either closing down or relocating to South Bend.[2]
