# Relationship history for MSHA mine 1515517

Current hierarchy: **Patterson Charles → Brownhorse Mining → #3**

- 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:** Meeks Alvin E & Edgar Allen King → #3; 1977-10-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** K & M Coal Company Inc → #3; 1986-01-01 to 1988-04-13; source msha-controller-operator-history
- **controller_controls_operator:** Meeks Alvin E & Edgar Allen King → K & M Coal Company Inc; 1986-01-01 to 1988-04-13; source msha-controller-operator-history
- **operator_operates_mine:** Gang Coal Company → #3; 1988-04-14 to 1989-08-27; source msha-controller-operator-history
- **controller_controls_mine:** Wilson Charles Et Al → #3; 1988-04-14 to 1989-08-27; source msha-controller-operator-history
- **controller_controls_operator:** Wilson Charles Et Al → Gang Coal Company; 1988-04-14 to 1989-08-27; source msha-controller-operator-history
- **controller_controls_mine:** Lloyd  Cole  et al → #3; 1989-07-10 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Gang Coal → #3; 1989-08-28 to 1992-10-22; source msha-controller-operator-history
- **controller_controls_mine:** Merritt Jackie Et Al → #3; 1989-08-28 to 1992-10-22; source msha-controller-operator-history
- **controller_controls_operator:** Merritt Jackie Et Al → Gang Coal; 1989-08-28 to 1992-10-22; source msha-controller-operator-history
- **operator_operates_mine:** Brownhorse Mining → #3; 1992-10-23 to 1993-08-01; source msha-controller-operator-history
- **controller_controls_mine:** Patterson Charles → #3; 1992-10-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Patterson Charles → Brownhorse Mining; 1992-10-23 to 1993-08-01; source msha-controller-operator-history
- **operator_operates_mine:** C & H Mining → #3; 1993-08-02 to 1994-02-22; source msha-controller-operator-history
- **controller_controls_operator:** Lloyd  Cole  et al → C & H Mining; 1993-08-02 to 1994-02-22; source msha-controller-operator-history
- **controller_controls_operator:** Larry  Hubbard  et al → C & H Mining; 1993-08-02 to 1994-02-22; source msha-controller-operator-history
- **operator_operates_mine:** Brownhorse Mining → #3; 1994-02-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Patterson Charles → Brownhorse Mining; 1994-02-23 to current/open; source msha-controller-operator-history