# Relationship history for MSHA mine 4801781

Current hierarchy: **Bradley R  Baxter → baxter and daughters equipment co. → baxter pit #1plant 1and other locations**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** baxter and daughters equipment co. → baxter pit #1plant 1and other locations; 2014-05-08 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Bradley R  Baxter → baxter pit #1plant 1and other locations; 2014-05-08 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Bradley R  Baxter → baxter and daughters equipment co.; 2014-05-08 to current/open; source msha-controller-operator-history