# Relationship history for MSHA mine 4404843

Current hierarchy: **Susie A  Smith; Elmer  Fuller → Kyn Coal Company Inc → No 1**

- 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:** Double J Coal Company Inc → No 1; 1977-07-01 to 1978-08-04; source msha-controller-operator-history
- **controller_controls_mine:** Childress James E → No 1; 1977-07-01 to 1978-08-04; source msha-controller-operator-history
- **controller_controls_operator:** Childress James E → Double J Coal Company Inc; 1977-07-01 to 1978-08-04; source msha-controller-operator-history
- **operator_operates_mine:** Double J Coal Company Inc → No 1; 1978-08-05 to 1979-10-30; source msha-controller-operator-history
- **controller_controls_mine:** Coleman Gilbert A → No 1; 1978-08-05 to 1979-10-30; source msha-controller-operator-history
- **controller_controls_operator:** Coleman Gilbert A → Double J Coal Company Inc; 1978-08-05 to 1979-10-30; source msha-controller-operator-history
- **operator_operates_mine:** Kyn Coal Company Inc → No 1; 1979-10-31 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Elmer  Fuller et al → No 1; 1979-10-31 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Elmer  Fuller et al → Kyn Coal Company Inc; 1979-10-31 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Susie A  Smith et al → Kyn Coal Company Inc; 1979-10-31 to current/open; source msha-controller-operator-history