An 18-book collection of mining claim surveys completed by T.T. Baker Company between the 1870s through the 1930s. Historical field survey books #2-124 in pencil (boxed), plus three books of folded original maps of eastern and southeastern Butte townsite extensions on linen. T.T. Baker was a civil and mining engineer; a U.S. Deputy Mineral Surveyor for Montana and Idaho. Based at 60 Silver Bow Block, Butte, MT according to the 1906 Butte city directory. Contact the MBMG Data Preservation office for information about accessing these records.