# Relationship history for MSHA mine 4604601

Current hierarchy: **Bane William H → Bane Mining Inc → 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: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **operator_operates_mine:** Big Valley Coal Company Inc → No 1 Mine; 1975-05-07 to 1975-06-30; source msha-controller-operator-history
- **controller_controls_mine:** Judy Melvin → No 1 Mine; 1975-05-07 to 1975-06-30; source msha-controller-operator-history
- **controller_controls_operator:** Judy Melvin → Big Valley Coal Company Inc; 1975-05-07 to 1975-06-30; source msha-controller-operator-history
- **operator_operates_mine:** Big Valley Coal Company Inc → No 1 Mine; 1975-07-01 to 1979-10-21; source msha-controller-operator-history
- **controller_controls_mine:** Dotson Boody → No 1 Mine; 1975-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Dotson Boody → Big Valley Coal Company Inc; 1975-07-01 to 1979-10-21; source msha-controller-operator-history
- **operator_operates_mine:** Federated Mining Company Inc → No 1 Mine; 1979-10-22 to 1980-03-31; source msha-controller-operator-history
- **controller_controls_mine:** Altizer Joseph W & Melvin C Nottingham → No 1 Mine; 1979-10-22 to 1981-06-15; source msha-controller-operator-history
- **controller_controls_operator:** Altizer Joseph W & Melvin C Nottingham → Federated Mining Company Inc; 1979-10-22 to 1980-03-31; source msha-controller-operator-history
- **operator_operates_mine:** Federated Mining Company Inc → No 1 Mine; 1980-04-01 to 1980-09-16; source msha-controller-operator-history
- **controller_controls_mine:** Green Richard O → No 1 Mine; 1980-04-01 to 1980-09-16; source msha-controller-operator-history
- **controller_controls_operator:** Green Richard O → Federated Mining Company Inc; 1980-04-01 to 1980-09-16; source msha-controller-operator-history
- **operator_operates_mine:** Bane Mining Inc → No 1 Mine; 1980-09-17 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Bane William H → No 1 Mine; 1980-09-17 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Bane William H → Bane Mining Inc; 1980-09-17 to current/open; source msha-controller-operator-history