# Relationship history for MSHA mine 4605187

Current hierarchy: **Bonham James A → Bickford 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Heritage Development Company → No 1 Mine; 1976-06-08 to 1977-09-30; source msha-controller-operator-history
- **controller_controls_mine:** Fox Andrew E → No 1 Mine; 1976-06-08 to 1977-09-30; source msha-controller-operator-history
- **controller_controls_operator:** Fox Andrew E → Heritage Development Company; 1976-06-08 to 1977-09-30; source msha-controller-operator-history
- **operator_operates_mine:** Heritage Development Company → No 1 Mine; 1977-10-01 to 1982-05-04; source msha-controller-operator-history
- **controller_controls_mine:** Tipperary Corp → No 1 Mine; 1977-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Tipperary Corp → Heritage Development Company; 1977-10-01 to 1982-05-04; source msha-controller-operator-history
- **controller_controls_mine:** Henry Paul  Kizer et al → No 1 Mine; 1981-10-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Raleigh Coal Sales Company → No 1 Mine; 1982-05-05 to 1984-02-29; source msha-controller-operator-history
- **controller_controls_mine:** Caperton S Austin Jr → No 1 Mine; 1982-05-05 to 1984-02-29; source msha-controller-operator-history
- **controller_controls_operator:** Caperton S Austin Jr → Raleigh Coal Sales Company; 1982-05-05 to 1984-02-29; source msha-controller-operator-history
- **operator_operates_mine:** Carolina Wren Coal Partnership → No 1 Mine; 1984-03-01 to 1988-12-31; source msha-controller-operator-history
- **controller_controls_mine:** Crown International Inc → No 1 Mine; 1984-03-01 to 1988-12-31; source msha-controller-operator-history
- **controller_controls_operator:** Crown International Inc → Carolina Wren Coal Partnership; 1984-03-01 to 1988-12-31; source msha-controller-operator-history
- **operator_operates_mine:** Barrett Fuel Corp → No 1 Mine; 1989-01-01 to 1991-01-01; source msha-controller-operator-history
- **controller_controls_operator:** Henry Paul  Kizer et al → Barrett Fuel Corp; 1989-01-01 to 1991-01-01; source msha-controller-operator-history
- **operator_operates_mine:** Bickford Mining Inc → No 1 Mine; 1991-01-02 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Bonham James A → No 1 Mine; 1991-01-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Bonham James A → Bickford Mining Inc; 1991-01-02 to current/open; source msha-controller-operator-history