# Relationship history for MSHA mine 4605681

Current hierarchy: **Mc Kenzie Don L Jr → Ga-Ran Corp → Jessica 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:** Mura Mining Inc → Jessica Mine; 1977-11-01 to 1983-06-28; source msha-controller-operator-history
- **controller_controls_mine:** Sigler Leonard L Sr Et Al → Jessica Mine; 1977-11-01 to 1983-06-28; source msha-controller-operator-history
- **controller_controls_operator:** Sigler Leonard L Sr Et Al → Mura Mining Inc; 1977-11-01 to 1983-06-28; source msha-controller-operator-history
- **controller_controls_mine:** Lambert Charles → Jessica Mine; 1983-02-12 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Rogers Roy → Jessica Mine; 1983-06-28 to 1984-07-22; source msha-controller-operator-history
- **operator_operates_mine:** Big Lump Mining Company Inc → Jessica Mine; 1983-06-29 to 1984-07-09; source msha-controller-operator-history
- **controller_controls_operator:** Rogers Roy → Big Lump Mining Company Inc; 1983-06-29 to 1984-07-09; source msha-controller-operator-history
- **operator_operates_mine:** Big Lump Mining Company Inc → Jessica Mine; 1984-07-10 to 1985-03-14; source msha-controller-operator-history
- **controller_controls_mine:** Morgan Oscar → Jessica Mine; 1984-07-10 to 1985-03-14; source msha-controller-operator-history
- **controller_controls_operator:** Morgan Oscar → Big Lump Mining Company Inc; 1984-07-10 to 1985-03-14; source msha-controller-operator-history
- **operator_operates_mine:** Newport Mining Inc → Jessica Mine; 1985-03-15 to 1985-09-02; source msha-controller-operator-history
- **controller_controls_mine:** Marion James D → Jessica Mine; 1985-03-15 to 1985-09-02; source msha-controller-operator-history
- **controller_controls_operator:** Marion James D → Newport Mining Inc; 1985-03-15 to 1985-09-02; source msha-controller-operator-history
- **operator_operates_mine:** Lambert Coal Company Inc → Jessica Mine; 1985-09-03 to 1986-03-13; source msha-controller-operator-history
- **controller_controls_operator:** Lambert Charles → Lambert Coal Company Inc; 1985-09-03 to 1986-03-13; source msha-controller-operator-history
- **operator_operates_mine:** Ga-Ran Corp → Jessica Mine; 1986-03-14 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Mc Kenzie Don L Jr → Jessica Mine; 1986-03-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mc Kenzie Don L Jr → Ga-Ran Corp; 1986-03-14 to current/open; source msha-controller-operator-history