Petroleum County, Montana Genealogy

United States Montana Petroleum County

Guide to Petroleum County, Montana ancestry, genealogy and family history, birth records, marriage records, death records, census records, family history, and military records.

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County Courthouse
Petroleum County Courthouse 201 E Main PO Box 226 Winnett, MT 59087 Phone: 406.429.5311 Petroleum County Website Director of Records has birth, marriage,death, burial, divorce, probate, court and land records from 1925

Petroleum County, Montana Record Dates

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 * width="91%" bgcolor="#e4d8e5" align="center" colspan="7" | Beginning Dates for Major County Records
 * width="13%" bgcolor="#e4d8e5" align="center" | Birth*
 * width="13%" bgcolor="#e4d8e5" align="center" | Marriage
 * width="13%" bgcolor="#e4d8e5" align="center" | Death*
 * width="13%" bgcolor="#e4d8e5" align="center" | Court
 * width="13%" bgcolor="#e4d8e5" align="center" | Land
 * width="13%" bgcolor="#e4d8e5" align="center" | Probate
 * width="13%" bgcolor="#e4d8e5" align="center" | Census
 * width="13%" align="center" | 1916*
 * width="13%" align="center" | 1925*
 * width="13%" align="center" | 1915*
 * width="13%" align="center" | 1925
 * width="13%" align="center" | 1925
 * width="13%" align="center" | 1925
 * width="13%" align="center" |
 * colspan="7" | * For earlier dates, try... Church &#124; Obituaries &#124; Cemeteries
 * }
 * width="13%" align="center" |
 * colspan="7" | * For earlier dates, try... Church &#124; Obituaries &#124; Cemeteries
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Record Loss
There is no known history of courthouse disasters in this county.

Boundary Changes

 * Interactive Formation Boundary Map of Montana - shows boundary changes for Montana Counties
 * Montana Historical Boundary Changes - list of all boundary changes by county provided by Newberry Library


 * Parent County: created 24 November 1924 from Fergus and Garfield
 * County seat: Winnett 

Populated Places

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Federal Census Records
Federal Censuses were taken for Montana starting in 1870. For links to Federal census indexes, see Montana Census.

Maps and Gazetteers



 * Interactive Formation Boundary Map of Montana - shows boundary changes for Montana Counties
 * Historical Maps and Atlases of Montana - maps and atlases of Montana

Military Records
Civil War World War I For further information see Montana Military Records.
 * 1890 at FamilySearch.— index
 * 1890 - 1918 Montana Military Enlistments at Montana Memory Project
 * 1917 - 1918 at FamilySearch — Index and images
 * Soldiers of the Great War from the State of Montana at USGenWeb.
 * Military Enlistments Montana World War I at Montana Memory Project

Probate Records
'''Online Probate Records


 * 1831 – 1952 Montana Wills and Probate Records 1831-1952 at Ancestry.com — index and images $

Birth

 * 1840–2004 -  at FamilySearch — index and images

Death

 * 1840–2004 -  at FamilySearch — index and images

Websites

 * USGenWeb Petroleum County, Montana project. May have maps, name indexes, history or other information for this county.
 * - The FamilySearch catalog contains descriptions and access information for all genealogical materials (including books, online materials, microfilm, microfiche, and publications) in their collection.  Use Historical Records to search for specific individuals in genealogical records