# Relationship history for MSHA mine 1508087

Current hierarchy: **Davis Gene → Maranatha 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: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **controller_controls_mine:** Coone Jerry → No 1 Mine; 1974-12-12 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Freedom Mining & Leasing Co Inc → No 1 Mine; 1975-02-25 to 1975-06-22; source msha-controller-operator-history
- **controller_controls_operator:** Coone Jerry → Freedom Mining & Leasing Co Inc; 1975-02-25 to 1975-06-22; source msha-controller-operator-history
- **operator_operates_mine:** Cow Creek Coal Company Inc → No 1 Mine; 1975-06-23 to 1975-11-26; source msha-controller-operator-history
- **controller_controls_mine:** Stone James G Jr → No 1 Mine; 1975-06-23 to 1975-11-26; source msha-controller-operator-history
- **controller_controls_operator:** Stone James G Jr → Cow Creek Coal Company Inc; 1975-06-23 to 1975-11-26; source msha-controller-operator-history
- **controller_controls_mine:** Burchett Fred → No 1 Mine; 1975-11-10 to 1977-04-15; source msha-controller-operator-history
- **operator_operates_mine:** B & F Coal Co → No 1 Mine; 1975-11-27 to 1977-04-15; source msha-controller-operator-history
- **controller_controls_operator:** Burchett Fred → B & F Coal Co; 1975-11-27 to 1977-04-15; source msha-controller-operator-history
- **controller_controls_mine:** Davis Gene → No 1 Mine; 1977-02-08 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Maranatha Corp → No 1 Mine; 1977-04-16 to 1979-09-27; source msha-controller-operator-history
- **controller_controls_operator:** Davis Gene → Maranatha Corp; 1977-04-16 to 1979-09-27; source msha-controller-operator-history
- **operator_operates_mine:** Little Bit Coal Company → No 1 Mine; 1979-09-28 to 1980-02-03; source msha-controller-operator-history
- **controller_controls_mine:** Johnson Burl → No 1 Mine; 1979-09-28 to 1980-02-03; source msha-controller-operator-history
- **controller_controls_operator:** Johnson Burl → Little Bit Coal Company; 1979-09-28 to 1980-02-03; source msha-controller-operator-history
- **operator_operates_mine:** Maranatha Corp → No 1 Mine; 1980-02-04 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Davis Gene → Maranatha Corp; 1980-02-04 to current/open; source msha-controller-operator-history