---
title: "Mary Rossillon: Montana candidate record"
description: "Every candidacy and campaign finance figure on file for Mary Rossillon in Montana."
type: "person"
name: "Mary Rossillon"
slug: "mary-rossillon-g327302"
election_years:
  - 2026
candidacy_count: 1
data_through: "2026-09-26"
generated_at: "2026-09-26"
source: "Montana Commissioner of Political Practices (CERS)"
---


# Mary Rossillon: Montana candidate record

Mary Rossillon appears in the Montana campaign finance record as a candidate in 2026, across 1 candidacy. This document covers the whole of that record.

## Mary Rossillon: County Commissioner in Silver Bow County, 2026

Mary Rossillon filed as a candidate for County Commissioner in Silver Bow County in the 2026 Montana election cycle.

### Others who ran for County Commissioner in Silver Bow County in 2026

- Allison Andersen Phipps (Non-Partisan)
- Butch Gerbrandt (Non-Partisan)
- Eric Mankins (Non-Partisan)
- John Morgan (Non-Partisan)
- [Josh O'neill](/people/josh-oneill-g312876/) (Non-Partisan)
- Michele Shea (Non-Partisan)
- Ready Frost (Non-Partisan)
- Thomas Walker (Non-Partisan)

### Money reported by Mary Rossillon for County Commissioner in Silver Bow County in 2026

No filed finance report for this candidacy is in the record. That is not a finding that none was owed or filed.

## What this record does not say about Mary Rossillon

It does not say whether Mary Rossillon won any of these elections. CERS records candidacies and money, not results.

Contribution totals are floors, not exact figures. The same real person or business can appear in the record more than once under spelling variants, and merging those into single identities is ongoing work. A total means "at least this much".