# Relationship history for MSHA mine 4403741

Current hierarchy: **Jimmy R  Dotson; Walter R  Branham → J & W Coal Company → No 1 Mine**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **controller_controls_mine:** Mc Glothlin Henry M → No 1 Mine; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Hope Coal Company → No 1 Mine; 1974-01-01 to 1974-12-31; source msha-controller-operator-history
- **controller_controls_mine:** Jimmy R  Dotson et al → No 1 Mine; 1974-01-01 to 1974-12-31; source msha-controller-operator-history
- **controller_controls_operator:** Jimmy R  Dotson et al → Hope Coal Company; 1974-01-01 to 1974-12-31; source msha-controller-operator-history
- **operator_operates_mine:** H M Mc Glothlin Coal Company Inc → No 1 Mine; 1975-01-01 to 1975-02-07; source msha-controller-operator-history
- **controller_controls_operator:** Mc Glothlin Henry M → H M Mc Glothlin Coal Company Inc; 1975-01-01 to 1975-02-07; source msha-controller-operator-history
- **operator_operates_mine:** J & W Coal Company → No 1 Mine; 1975-02-08 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jimmy R  Dotson et al → No 1 Mine; 1975-02-08 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jimmy R  Dotson et al → J & W Coal Company; 1975-02-08 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Walter R  Branham et al → J & W Coal Company; 1975-02-08 to current/open; source msha-controller-operator-history