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Montana Blotter / Violent / Sexual Offender Updates / Jefferson County

Jefferson County Violent / Sexual Offender Registry

Current registrants in Jefferson County, Montana. Map shows address-level locations where geocoding is available.

BASIN BOULDER CARDWELL CLANCY JEFFERSON CITY MONTANA CITY WHITEHALL
Name Type Address City Tier Risk Offense
Andrews, Joel Nelson β€” β€” 416 N NOBLE ST WHITEHALL 1 β€” SEXUAL
Bowers, Thomas Ray β€” β€” 98 OLD HWY 91 BOULDER 1 Victim 12 or Younger SEXUAL
Brian, Joseph Patrick β€” β€” 110 EDWARDS ADDITION RD WHITEHALL VIOLENT β€” VIOLENT
Brown, Greg Allen β€” β€” 100 HALFORD RD CLANCY 0 β€” SEXUAL
Bunch, Zane Micheal β€” β€” 111 N DIVISION ST WHITEHALL 1 β€” SEXUAL
Cadotte, Samantha β€” β€” 1 RIVERSIDE DR BOULDER VIOLENT β€” VIOLENT
Carver, William Lyle Jr β€” β€” 474 HWY 282 CLANCY VIOLENT β€” VIOLENT
Chiefstick, April β€” β€” 1 RIVERSIDE DR BOULDER VIOLENT β€” VIOLENT
Corrigan, Cindy Marie β€” β€” 603 W 4TH AVE BOULDER VIOLENT β€” VIOLENT
Corrigan, Jonathan Michael β€” β€” 603 W 4TH AVE BOULDER VIOLENT β€” VIOLENT
Culp, Casey Ray β€” β€” 122 OLD ALHAMBRA RD CLANCY 0 β€” SEXUAL
Davis, James Michael β€” β€” 400 S ADAMS BOULDER 2 β€” SEXUAL
Denny, Dan William β€” β€” 63 BLUE BIRD LANE WHITEHALL 0 β€” SEXUAL
Derryberry, David Carl β€” β€” [No Known Address] BOULDER 0 Transient SEXUAL/VIOLENT
Doris, Dale P β€” β€” 109 N STANLEY WHITEHALL 1 Victim 12 or Younger SEXUAL
Downs, Timothy Stephen β€” β€” 60 CARNEY LN WHITEHALL 0 β€” SEXUAL
Fasekas, Aaron Matthew β€” β€” 102 1/2 FLAHERTY RD BOULDER 2 β€” SEXUAL
Flynn, Liam Charles β€” β€” 513 W CENTENNIAL AVE BOULDER VIOLENT β€” VIOLENT
Frazer, Nathan Lee β€” β€” 110 E 1ST WHITEHALL 1 β€” SEXUAL
Golas, Ronald Lee β€” β€” JEFFERSON CO JAIL, 110 S WASHINGTON ST BOULDER VIOLENT Non-Compliant Registrant VIOLENT
Graham, David Matthew β€” β€” 309 S COOK ST BOULDER 2 β€” SEXUAL
Gray, Lynette Marie β€” β€” 1 RIVERSIDE DR BOULDER VIOLENT β€” VIOLENT
Griffin, Daniel Alexander β€” β€” 474 HWY 282 CLANCY 0 β€” SEXUAL
Kenmille, Daniel James β€” β€” [Current Address Unknown] BOULDER VIOLENT Non-Compliant Registrant, Non-Compliant/Address Verification Overdue VIOLENT
Knight, Scott James β€” β€” JEFFERSON CO SHERIFF, 307 E 4TH ST BOULDER 0 Victim 12 or Younger SEXUAL
Koyl, Michael Ivan β€” β€” 88 MT HIGHWAY 2 W WHITEHALL VIOLENT β€” VIOLENT
Lambert, Ashlee Taylor β€” β€” 1 RIVERSIDE DR BOULDER VIOLENT β€” VIOLENT
Lane, David Mark β€” β€” 474 HWY 282 CLANCY VIOLENT β€” VIOLENT
Layman, Jonathan Harley β€” β€” 311 W HAUSER ST BOULDER 0 β€” SEXUAL
Lewis, John Franklin β€” β€” 306 S ADAMS ST #1 BOULDER 1 Victim 12 or Younger SEXUAL
Mann, Serenity Alana β€” β€” 19 HILLSIDE DR BASIN VIOLENT β€” VIOLENT
Mathiason, Andrew Richard β€” β€” 506 CAPITAL HEIGHTS BOULDER 0 β€” SEXUAL
Mcginnis, Jackson Robert β€” β€” 168 LITTLE BOULDER ROAD BOULDER 2 β€” SEXUAL
Mckelvey, Justin Michael β€” β€” [Current Address Unknown] BOULDER VIOLENT Non-Compliant Registrant VIOLENT
Mendenhall, Tracy Ryan β€” β€” 25 FINN GULCH RD JEFFERSON CITY 0 β€” SEXUAL
Miller, Shannon Paul β€” β€” 40 1/2 FINN GULCH RD JEFFERSON CITY 2 β€” SEXUAL
Morris, Joshua Eric β€” β€” 6 WILLIAMS WAY CLANCY VIOLENT β€” VIOLENT
Naegele, Brad Eugene β€” β€” 134 MUSKRAT LN BOULDER 0 β€” SEXUAL
Newman, Joseph Lee β€” β€” 126 FRIEND SPRING RD WHITEHALL 2 Victim 12 or Younger SEXUAL
Nichols, Ristina Michelle β€” β€” 64 BOE LN WHITEHALL 0 β€” SEXUAL
Ostrander, Donald Ryan β€” β€” 102 E 2ND ST WHITEHALL VIOLENT β€” VIOLENT
Peters, Weston Lee β€” β€” 58 HOMESTEAD ESTATES CLANCY 0 Victim 12 or Younger SEXUAL
Post, Jacob Ernest β€” β€” 73 HOWARD BEER RD CLANCY VIOLENT β€” VIOLENT
Purdy, Jeffrey Dwane β€” β€” 474 HWY 282 CLANCY VIOLENT β€” VIOLENT
Quimby, Kimberly Ann β€” β€” 1 RIVERSIDE DR BOULDER VIOLENT β€” VIOLENT
Ras, James Albert β€” β€” 270 WICKS RD JEFFERSON CITY VIOLENT Non-Compliant/Address Verification Overdue VIOLENT
Ross, William Kent β€” β€” 78 WAPITI DR WHITEHALL 0 Victim 12 or Younger SEXUAL
Schroeder, Frederick Walter β€” β€” 67 COTTONWOOD RD CARDWELL VIOLENT β€” VIOLENT
Sedlak, Manfred β€” β€” 114 SOUTH QUARTZ AVE BASIN 1 β€” SEXUAL
Seger, Julian Eugene β€” β€” [Current Address Unknown] WHITEHALL VIOLENT Non-Compliant Registrant, Non-Compliant/Address Verification Overdue VIOLENT
Smith, Chase Landon β€” β€” 6 MULE TRAIL DR CLANCY 1 β€” SEXUAL
Speed, Lance Edward β€” β€” 114 N MAIN ST #117 BOULDER 3 Sexually Violent Predator SEXUAL
Speeg, Roy James β€” β€” 25 JACKSON CREEK RD MONTANA CITY VIOLENT β€” VIOLENT
Stover, Edward William β€” β€” 146 WAPITI RD WHITEHALL 1 β€” SEXUAL
Swenson, Jeff Alan β€” β€” 104 MEADOWLARK TRAIL JEFFERSON CITY 0 β€” SEXUAL
Trumble, Kevin Dean β€” β€” 1 JACKSON CREEK RD 104 # CLANCY VIOLENT β€” VIOLENT
Wilson, Jacob Allen β€” β€” 300 WICKES RD JEFFERSON CITY VIOLENT β€” VIOLENT
Yamaguchi, Michael Lee β€” β€” 1 A HAUSER LOOP WEST BOULDER VIOLENT β€” VIOLENT
Editorial Standards

Montana Blotter is designed to make public records and public meeting information easier to access. It is not a government office, and it does not replace official notice, clerk records, court files, or agency databases.

1. Primary Source Rule
We prefer direct links to official county, city, court, sheriff, police, and state judiciary pages. Where possible, each page should point readers back to the original public record, agenda, minutes page, or official document listing.

2. What We Standardize
Date and time formatting — location and body-name labeling — document labels such as agenda, packet, or minutes — searchable statewide filters and metadata.

3. What We Do Not Claim
We do not claim to be the official keeper of public records. We do not guarantee that a third-party government site is complete, current, or correctly maintained. We do not treat summaries or extracted text as a substitute for the official source file.

4. Update Cadence
Automated sources are checked on a recurring basis. If a source is stale, broken, or moved, the originating public body remains the authoritative reference until the source is repaired.

5. Provenance and Visibility
We aim to show where information came from, when it was last refreshed, and how users can verify it.

6. Redactions and Sensitive Material
We may review records for obvious sensitivity, legal restrictions, or redaction issues. The existence of a public record does not automatically mean every field or derivative presentation should be amplified without review.

7. Corrections
If a source link breaks, a meeting is mislabeled, a record is duplicated, or a page needs clarification, see the Corrections Policy for the reporting workflow.

8. Government and Clerk Communications
If you work for a Montana public body and need a source updated, corrected, or removed, contact us directly. We prefer exact URLs, dates, and a brief explanation of the change.

9. Contact
Montana Blotter — records@montanablotter.com

Read full standards →

Corrections Policy

We want corrections requests to be specific, easy to verify, and fast to act on. The more concrete the report, the faster it can be reviewed.

1. What To Report
Broken official source links — moved agenda or minutes pages — incorrect meeting date, body name, or location label — duplicate records or meetings — stale source pages — material factual errors in a summary or description.

2. What To Include
The exact Montana Blotter URL — the exact official source URL that should be used — a short description of what is wrong — if timing matters, the date and time the official source changed.

3. Where To Send It
Email records@montanablotter.com with subject line Correction Request or Source Update. If you represent a government office, say so in the message.

4. Review Standard
We review corrections against the official source when available. If a report cannot be verified, we may ask for a clarifying URL, screenshot, or exact document reference before changing the page.

5. Response Goal
Our goal is to review straightforward source and labeling issues within two business days. Complex disputes, legal issues, and record-sensitivity questions may take longer.

6. How Fixes Are Handled
Broken or moved source URLs are updated at the source-config level when possible. Mislabeled dates, titles, or locations are corrected in the public presentation. If a government source removes or replaces a document, the official source controls.

7. Limits
A correction request does not automatically guarantee removal. Montana Blotter may preserve accurate public-record references while updating labels, links, timestamps, or explanatory text.

Read full corrections policy →

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