# Relationship history for MSHA mine 4103474

Current hierarchy: **Metcalf Jimmy → Jimmy Metcalf Company Inc → Jimmy Metcalf Company Incorporated**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-18T09:31:49.615908+00:00

## Valid-time edges

- **operator_operates_mine:** Gerald Idlett → Jimmy Metcalf Company Incorporated; 1987-06-01 to 1987-08-14; source msha-controller-operator-history
- **controller_controls_mine:** Idlett Gerald → Jimmy Metcalf Company Incorporated; 1987-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Idlett Gerald → Gerald Idlett; 1987-06-01 to 1987-08-14; source msha-controller-operator-history
- **operator_operates_mine:** Jimmy Metcalf Company Inc → Jimmy Metcalf Company Incorporated; 1987-08-15 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Metcalf Jimmy → Jimmy Metcalf Company Incorporated; 1987-08-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Metcalf Jimmy → Jimmy Metcalf Company Inc; 1987-08-15 to current/open; source msha-controller-operator-history