# Relationship history for MSHA mine 1508210

Current hierarchy: **Belcher Jack → Freedom Coal Company → No 129 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:** Ramey Billy E & Johnny E → No 129 Mine; 1974-09-18 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** J H & L Coal Company → No 129 Mine; 1975-04-07 to 1978-01-30; source msha-controller-operator-history
- **controller_controls_operator:** Ramey Billy E & Johnny E → J H & L Coal Company; 1975-04-07 to 1978-01-30; source msha-controller-operator-history
- **operator_operates_mine:** J H & L Coal Company → No 129 Mine; 1978-01-31 to 1982-04-28; source msha-controller-operator-history
- **controller_controls_mine:** Holloway Loren → No 129 Mine; 1978-01-31 to 1982-04-28; source msha-controller-operator-history
- **controller_controls_operator:** Holloway Loren → J H & L Coal Company; 1978-01-31 to 1982-04-28; source msha-controller-operator-history
- **operator_operates_mine:** D & L Coal Company Inc → No 129 Mine; 1982-04-29 to 1983-08-15; source msha-controller-operator-history
- **controller_controls_mine:** Fleming Danny D & Lenard Smallwood → No 129 Mine; 1982-04-29 to 1983-08-15; source msha-controller-operator-history
- **controller_controls_operator:** Fleming Danny D & Lenard Smallwood → D & L Coal Company Inc; 1982-04-29 to 1983-08-15; source msha-controller-operator-history
- **operator_operates_mine:** Freedom Coal Company → No 129 Mine; 1983-08-16 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Belcher Jack → No 129 Mine; 1983-08-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Belcher Jack → Freedom Coal Company; 1983-08-16 to current/open; source msha-controller-operator-history