# Relationship history for MSHA mine 3700070

Current hierarchy: **Stephen P  Lynch Jr; David C  Lynch Sr → LYNCH CORP. → LYNCH CORP**

- 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:** J H Lynch & Sons Inc → LYNCH CORP; 1950-01-01 to 2012-01-01; source msha-controller-operator-history
- **controller_controls_mine:** Gregory P Lynch Sr et al → LYNCH CORP; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Gregory P Lynch Sr et al → J H Lynch & Sons Inc; 1950-01-01 to 2012-01-01; source msha-controller-operator-history
- **controller_controls_operator:** David C  Lynch Sr et al → J H Lynch & Sons Inc; 1950-01-01 to 2012-01-01; source msha-controller-operator-history
- **controller_controls_operator:** Stephen P  Lynch Jr et al → J H Lynch & Sons Inc; 1950-01-01 to 2012-01-01; source msha-controller-operator-history
- **operator_operates_mine:** Lynch Corp. → LYNCH CORP; 2012-01-02 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** David C  Lynch Sr et al → LYNCH CORP; 2012-01-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** David C  Lynch Sr et al → Lynch Corp.; 2012-01-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Stephen P  Lynch Jr et al → Lynch Corp.; 2012-01-02 to current/open; source msha-controller-operator-history