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Thomas D. Clark A Biographical Sketch

Frederick Herman Verhoeff M.D.

The Falls of the Ohio River and Its Environs The Journals of Increase Allen Lapham for 1827 1830 Conclusion

The Falls of the Ohio River and Its Environs The Journals of Increase Allen Lapham for 1827 1830 Part III

The Falls of the Ohio River and Its Environs The Journals of Increase Allen Lapham for 1827 1830 Part II

The Falls of the Ohio River and Its Environs The Journals of Increase Allen Lapham for 1827 1830 Part I