# Relationship history for MSHA mine 4404475

Current hierarchy: **Coleman Gerald → Little Eva Coal Corp → 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

- **operator_operates_mine:** Belcher Mining & Engineering Company → No 1 Mine; 1976-01-01 to 1976-06-14; source msha-controller-operator-history
- **controller_controls_mine:** Belcher Mining & Engineering Company → No 1 Mine; 1976-01-01 to 1976-06-14; source msha-controller-operator-history
- **controller_controls_operator:** Belcher Mining & Engineering Company → Belcher Mining & Engineering Company; 1976-01-01 to 1976-06-14; source msha-controller-operator-history
- **controller_controls_mine:** Keen Cloyd → No 1 Mine; 1976-03-06 to 1977-05-31; source msha-controller-operator-history
- **operator_operates_mine:** Chubby Coal Company → No 1 Mine; 1976-06-15 to 1977-05-31; source msha-controller-operator-history
- **controller_controls_operator:** Keen Cloyd → Chubby Coal Company; 1976-06-15 to 1977-05-31; source msha-controller-operator-history
- **operator_operates_mine:** Fair Day Coal Company Inc → No 1 Mine; 1977-06-01 to 1977-10-27; source msha-controller-operator-history
- **controller_controls_mine:** Maynard Larry → No 1 Mine; 1977-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Maynard Larry → Fair Day Coal Company Inc; 1977-06-01 to 1977-10-27; source msha-controller-operator-history
- **operator_operates_mine:** Boyd & Potter Coal Company Inc → No 1 Mine; 1977-10-28 to 1977-12-26; source msha-controller-operator-history
- **controller_controls_mine:** Potter Doug → No 1 Mine; 1977-10-28 to 1977-12-26; source msha-controller-operator-history
- **controller_controls_operator:** Potter Doug → Boyd & Potter Coal Company Inc; 1977-10-28 to 1977-12-26; source msha-controller-operator-history
- **operator_operates_mine:** Boyd Prater & Colley Coal Company Inc → No 1 Mine; 1977-12-27 to 1978-01-31; source msha-controller-operator-history
- **controller_controls_mine:** Boyd James K → No 1 Mine; 1977-12-27 to 1978-01-31; source msha-controller-operator-history
- **controller_controls_operator:** Boyd James K → Boyd Prater & Colley Coal Company Inc; 1977-12-27 to 1978-01-31; source msha-controller-operator-history
- **operator_operates_mine:** Little Eva Coal Corp → No 1 Mine; 1978-02-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Coleman Gerald → No 1 Mine; 1978-02-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Coleman Gerald → Little Eva Coal Corp; 1978-02-01 to current/open; source msha-controller-operator-history