# Relationship history for MSHA mine 3605451

Current hierarchy: **Thomas J  Lynott → L & E Coal Company → L & E Buck Stripping**

- 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:** L & E Coal Company → L & E Buck Stripping; 1950-01-01 to 1989-03-19; source msha-controller-operator-history
- **controller_controls_mine:** John J  Lynott → L & E Buck Stripping; 1950-01-01 to 1989-03-19; source msha-controller-operator-history
- **controller_controls_operator:** John J  Lynott → L & E Coal Company; 1950-01-01 to 1989-03-19; source msha-controller-operator-history
- **operator_operates_mine:** L & E Coal Company → L & E Buck Stripping; 1989-03-20 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Thomas J  Lynott → L & E Buck Stripping; 1989-03-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Thomas J  Lynott → L & E Coal Company; 1989-03-20 to current/open; source msha-controller-operator-history