Lewis and Clark County Genealogy
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Lewis and Clark Countywide Sources
1790-1940 United States Census Archives
1790-1940 United States Federal Census World Vital Records
1907-present Montana Birth Certificates (order here) Archives
1907-present Montana Death Certificates (order here) Archives
1995 brand book, Lewis and Clark County Family History Library
BillionGraves Cemetery Records Index Family Search
Declarations of intention, 1866-1929 Family History Library
Federal Land Patents Bureau of Land Management
Find A Grave Gravestone, Tombstone, and Memorial Photo Collection World Vital Records
Helena (Lewis and Clark Co., Montana) city directory : also a buyers' guide and a complete classified business directory Family History Library
Index to Lewis & Clark Co. MT divorce records : 1865-1950 Family History Library
Lewis & Clark Co. MT birth - 1867-1950 Family History Library
Lewis & Clark Co. MT probate index 1865-1979 Family History Library
Lewis & Clark County, Montana, marriages, 1865-1985 [indexes] Family History Library
Lewis and Clark County, Montana land ownership map, 1890 Family History Library
Lewis and Clark County, Montana, death records, 1869-1950; birth records, 1841-1930; indexes, 1841-2001 --, 1841-2001 Family History Library
Lewis and Clark County, Montana, deed records ; indexes, 1865-1940 Family History Library
Lewis and Clark County, Montana, election register, 1882-1915 Family History Library
Lewis and Clark County, Montana, military discharge books, 1939-1946 (Montana. County Court (Lewis and Clark County)) Family History Library
Lewis and Clark County, Montana, military records, 1904-1918 (Montana. County Court (Lewis and Clark County)) Family History Library
Lewis and Clark County, Montana, mining deed records ; indexes, 1865-1963 Family History Library
Lewis and Clark County, Montana, mortgage records, 1865-1945 Family History Library
Lewis and Clark County, Montana, school census, 1882-1924 Family History Library
Lewis and Clark County, Montana, tax list, 1868-1895 Family History Library
Lewis and Clark County, Montana, wills and probate proceedings indexes 1904-1962 Family History Library
Lewis and Clark rural county-wide cemeteries, 1859-1991 Family History Library
Montana Death Index, 1860-2007
Montana Death Index, 1954-2002
Montana Death Records 1860 - 2007 Archives
Montana Marriages, 1889-1947 Family Search
Montana Territory, miscellaneous records and index, 1870-1957 Family History Library
Montana, County Births and Deaths, 1840-2004 Family Search
Montana, County Marriages, 1865-1950 Family Search
Montana, Death Index, 1860-2007 Family Search
Montana, military records, 1939-1945 Family History Library
Naturalization record information of Lewis & Clark Co., MT. : 1866-1941 Family History Library
United States Federal Census 1790-1940 Family Search
More Lewis and Clark County records are available on the statewide page