# Relationship history for MSHA mine 1509625

Current hierarchy: **M Lynn  Parrish → Jaco Mining Company Inc → A & A Tipple**

- 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:** A & A Fuels Inc → A & A Tipple; 1976-04-01 to 1979-07-23; source msha-controller-operator-history
- **controller_controls_mine:** Adkins John Jack → A & A Tipple; 1976-04-01 to 1979-07-23; source msha-controller-operator-history
- **controller_controls_operator:** Adkins John Jack → A & A Fuels Inc; 1976-04-01 to 1979-07-23; source msha-controller-operator-history
- **controller_controls_mine:** Parker Elwood Et Al → A & A Tipple; 1977-08-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Parker Coal Company → A & A Tipple; 1979-07-24 to 1981-12-14; source msha-controller-operator-history
- **controller_controls_operator:** Parker Elwood Et Al → Parker Coal Company; 1979-07-24 to 1981-12-14; source msha-controller-operator-history
- **controller_controls_mine:** M Lynn  Parrish → A & A Tipple; 1979-09-20 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Jaco Mining Company Inc → A & A Tipple; 1981-12-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** M Lynn  Parrish → Jaco Mining Company Inc; 1981-12-15 to current/open; source msha-controller-operator-history