# Relationship history for MSHA mine 4102426

Current hierarchy: **James C  Kerr → Kerr Enterprises Inc → #73 Location**

- 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

- **operator_operates_mine:** Mid County Dirt Pit → #73 Location; 1950-01-01 to 1991-02-12; source msha-controller-operator-history
- **controller_controls_mine:** Veazie Roualton → #73 Location; 1950-01-01 to 1991-02-12; source msha-controller-operator-history
- **controller_controls_operator:** Veazie Roualton → Mid County Dirt Pit; 1950-01-01 to 1991-02-12; source msha-controller-operator-history
- **operator_operates_mine:** Kerr Enterprises Inc → #73 Location; 1991-02-13 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** James C  Kerr → #73 Location; 1991-02-13 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James C  Kerr → Kerr Enterprises Inc; 1991-02-13 to current/open; source msha-controller-operator-history