# Relationship history for MSHA mine 2103860

Current hierarchy: **Jim P  McCarthy; Karen M  McCarthy → McCarthy Gravel Inc. → Wash Plant**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **controller_controls_mine:** Karen M  McCarthy Et Al → Wash Plant; 1994-08-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** McCarthy Gravel Inc. → Wash Plant; 2015-06-17 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Karen M  McCarthy Et Al → McCarthy Gravel Inc.; 2015-06-17 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jim P  McCarthy Et Al → McCarthy Gravel Inc.; 2015-06-17 to current/open; source msha-controller-operator-history