Ells, M., & Lytle, J. J. (1872). Descriptive guide book of the Watkins glen: (located at Watkins - head of Seneca Lake - Schuyler Co., N.Y.) and its romantic surroundings (3rd. ed., rev. and cor. by J.J. Lytle.). Philadelphia: Culbertson & Bache, printers.

Ells, M., and J. J. Lytle. Descriptive Guide Book of the Watkins Glen: (located At Watkins - Head of Seneca Lake - Schuyler Co., N.Y.) and Its Romantic Surroundings. 3rd. ed., rev. and cor. by J.J. Lytle. Philadelphia: Culbertson & Bache, printers, 1872.

Ells, M., and J. J. Lytle. Descriptive Guide Book of the Watkins Glen: (located At Watkins - Head of Seneca Lake - Schuyler Co., N.Y.) and Its Romantic Surroundings. 3rd. ed., rev. and cor. by J.J. Lytle. Philadelphia: Culbertson & Bache, printers, 1872.