# Relationship history for MSHA mine 4103702

Current hierarchy: **James C  Kerr → Kerr Enterprises Inc → Pit #347**

- 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:** James C  Kerr → Pit #347; 1991-02-13 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Kerr Enterprises Inc → Pit #347; 1991-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James C  Kerr → Kerr Enterprises Inc; 1991-11-01 to current/open; source msha-controller-operator-history