01490cpcaa2200349 a 4500 mm 98006407 DLC 20260227111727.0 981027|||||||||||| eng mm 98006407 DLC DLC dacs DLC W lcmd Gardner, G. Clinton (George Clinton), 1834-1904. G. Clinton Gardner papers, 1849-1860. 20 items. Open to research. Letters written to family members in Washington, D.C., by Gardner as a member of the United States and Mexican Boundary Survey surveying the Mexican boundary, 1849-1852, and Northwest Boundary Commission surveying the northwest Canadian boundary, 1858-1859. Civil engineer and railroad executive. Collection material in English. Gardner family Correspondence. Northwest Boundary Commission, 1857-1869. United States and Mexican Boundary Survey. Northwest boundary of the United States. Canada Boundaries United States. Mexico Boundaries United States. United States Boundaries Canada. United States Boundaries Mexico. Civil engineers. itoamc Executives. itoamc 44475 44475