From FamilySearch Wiki
United States Montana Musselshell County
Musselshell County Courthouse
506 Main Street
Roundup, Montana 59072-2498
County Clerk Recorder has birth, death and land
records from 1911; Clerk of Court has marriage,
divorce, probate, military and court records from 1911
1911--Musselshell County was created 11 February 1911 from Fergus and Yellowstone Counties.
County seat: Roundup 
- NewspaperArchive.com ($) has a collection of digitized Montana newspapers including Billings newspapers that may include residents of Musselshell County. This database is sometimes free at libraries.
Societies and Libraries
Family History Centers
- USGenWeb project. May have maps, name indexes, history or other information for this county. Select the state, then the county.
- Family History Library Catalog
- ↑ The Handybook for Genealogists : United States of America, 10th ed., (Draper, UT: Everton Publishers, 2002), p. 417.
- ↑ The Handybook for Genealogists: United States of America,10th ed. (Draper, UT:Everton Publishers, 2002).