U.S. Lake Survey payrolls and reports, 1841-1846
Payroll lists of mechanics and seamen employed at Green Bay and Racine, Wisconsin on the Survey of the Northern and Northwestern Lakes, and letters and reports from Lieut. J. W. Gunnison and Capt. Stanbury, U.S. Topographical Engineers, to W. G. Williams, superintendent of the survey, at Buffalo, New York
Archival Material, English, 1841