Statistics for occurrence #1 of “Ohio River” in entry blennerhassett-harman of Harper's Encyclopedia of United States History:
...an in principle, he became involved in the political troubles in Ireland in 1798.
when he sold his estates in England.
and came to America with an ample fortune.
He purchased an island in the Ohio River .
nearly opposite Marietta, built an elegant mansion, furnished it luxuriantly, and there he and his accomplished wife were living in happiness and contentment, surrounded by books.
† This entity has been selected by the automated classifier as the most likely match in this context. It may or may not be the correct match.