# Relationship history for MSHA mine 1508837

Current hierarchy: **Stanley  Finley; Larry  Finley → Sandy Fork Mining Company Inc → Sandy Fork #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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **controller_controls_mine:** Larry  Finley et al → Sandy Fork #3; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Sandy Fork Mining Company Inc → Sandy Fork #3; 1975-09-11 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Larry  Finley et al → Sandy Fork Mining Company Inc; 1975-09-11 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Stanley  Finley et al → Sandy Fork Mining Company Inc; 1975-09-11 to current/open; source msha-controller-operator-history