# Relationship history for MSHA mine 4607278

Current hierarchy: **Sizemore Lloyd → Black Diamond Leasing Inc → Mine No 19-A**

- 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:** Rasnake Billy H → Mine No 19-A; 1985-01-16 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Mc Kinney Charles W → Mine No 19-A; 1987-01-26 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** R A O Coal Company Inc → Mine No 19-A; 1987-03-01 to 1987-09-27; source msha-controller-operator-history
- **controller_controls_operator:** Rasnake Billy H → R A O Coal Company Inc; 1987-03-01 to 1987-09-27; source msha-controller-operator-history
- **operator_operates_mine:** Faye Coal Company Inc → Mine No 19-A; 1987-09-28 to 1987-11-16; source msha-controller-operator-history
- **controller_controls_operator:** Mc Kinney Charles W → Faye Coal Company Inc; 1987-09-28 to 1987-11-16; source msha-controller-operator-history
- **operator_operates_mine:** Mels Enterprises Inc → Mine No 19-A; 1987-11-17 to 1988-05-19; source msha-controller-operator-history
- **controller_controls_mine:** Powers Melvin → Mine No 19-A; 1987-11-17 to 1989-01-22; source msha-controller-operator-history
- **controller_controls_operator:** Powers Melvin → Mels Enterprises Inc; 1987-11-17 to 1988-05-19; source msha-controller-operator-history
- **operator_operates_mine:** Blm Corp → Mine No 19-A; 1988-05-20 to 1991-08-12; source msha-controller-operator-history
- **controller_controls_mine:** Smith Barry W → Mine No 19-A; 1988-05-20 to 1991-08-12; source msha-controller-operator-history
- **controller_controls_operator:** Smith Barry W → Blm Corp; 1988-05-20 to 1991-08-12; source msha-controller-operator-history
- **controller_controls_mine:** Kennie Ray  Childers → Mine No 19-A; 1989-12-11 to 1992-08-21; source msha-controller-operator-history
- **operator_operates_mine:** Idlewild Collieries Inc → Mine No 19-A; 1991-08-13 to 1992-08-21; source msha-controller-operator-history
- **controller_controls_operator:** Kennie Ray  Childers → Idlewild Collieries Inc; 1991-08-13 to 1992-08-21; source msha-controller-operator-history
- **operator_operates_mine:** H & L Leasing Inc → Mine No 19-A; 1992-08-22 to 1994-08-14; source msha-controller-operator-history
- **controller_controls_mine:** Ritchie Rosie (Muncy) → Mine No 19-A; 1992-08-22 to 1994-08-14; source msha-controller-operator-history
- **controller_controls_operator:** Ritchie Rosie (Muncy) → H & L Leasing Inc; 1992-08-22 to 1994-08-14; source msha-controller-operator-history
- **controller_controls_mine:** Raymond E  Hagerman → Mine No 19-A; 1993-03-11 to 1996-12-14; source msha-controller-operator-history
- **operator_operates_mine:** Rayco Mining Inc → Mine No 19-A; 1994-08-15 to 1996-12-14; source msha-controller-operator-history
- **controller_controls_operator:** Raymond E  Hagerman → Rayco Mining Inc; 1994-08-15 to 1996-12-14; source msha-controller-operator-history
- **operator_operates_mine:** Black Diamond Leasing Inc → Mine No 19-A; 1996-12-15 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Sizemore Lloyd → Mine No 19-A; 1996-12-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Sizemore Lloyd → Black Diamond Leasing Inc; 1996-12-15 to current/open; source msha-controller-operator-history