John Hayward, Gazetteer of the United States of America… (Philadelphia: James L. Gihon, 1854), 312.
Calaveras County, Ca., c. h. at Double Springs, otherwise called Pleasant Valley. In the mountains E. of the San Joaquin, between Dry Creek of the Moquelumne and the Stanislaus River.
John Hayward, Gazetteer of the United States of America… (Philadelphia: James L. Gihon, 1854), 311-312.
Cairo, Is., Alexander co. Situated at the junction of the Mississippi and Ohio Rivers, 266 miles S. from Springfield, 522 S. E. from Cincinnati, and about 1000, by the course of the river, N.