# Relationship history for MSHA mine 3609510

Current hierarchy: **Charles H  God → Charles God Quarry → Norton Quarry #2**

- 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:** Norton Quarry → Norton Quarry #2; 2007-05-01 to 2012-02-09; source msha-controller-operator-history
- **controller_controls_mine:** John R  Norton et al → Norton Quarry #2; 2007-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** John R  Norton et al → Norton Quarry; 2007-05-01 to 2012-02-09; source msha-controller-operator-history
- **controller_controls_operator:** Randy D  Johnson et al → Norton Quarry; 2007-05-01 to 2012-02-09; source msha-controller-operator-history
- **controller_controls_mine:** Jan  Tuttle et al → Norton Quarry #2; 2008-04-01 to 2013-09-24; source msha-controller-operator-history
- **operator_operates_mine:** Norton Quarry → Norton Quarry #2; 2012-02-10 to 2013-03-20; source msha-controller-operator-history
- **controller_controls_mine:** Randy D  Johnson → Norton Quarry #2; 2012-02-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Randy D  Johnson → Norton Quarry; 2012-02-10 to 2013-03-20; source msha-controller-operator-history
- **operator_operates_mine:** Liddick Quarries → Norton Quarry #2; 2013-03-21 to 2014-07-06; source msha-controller-operator-history
- **controller_controls_mine:** Michael P  Liddick → Norton Quarry #2; 2013-03-21 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Michael P  Liddick → Liddick Quarries; 2013-03-21 to 2014-07-06; source msha-controller-operator-history
- **controller_controls_mine:** Jan M  God → Norton Quarry #2; 2013-09-25 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** TG Mountain Stone → Norton Quarry #2; 2014-07-07 to 2021-03-04; source msha-controller-operator-history
- **controller_controls_operator:** Jan  Tuttle et al → TG Mountain Stone; 2014-07-07 to 2013-09-24; source msha-controller-operator-history
- **controller_controls_operator:** Charles  God et al → TG Mountain Stone; 2014-07-07 to 2013-09-24; source msha-controller-operator-history
- **controller_controls_operator:** Jan M  God → TG Mountain Stone; 2014-07-07 to 2021-03-04; source msha-controller-operator-history
- **operator_operates_mine:** Charles God Quarry → Norton Quarry #2; 2021-03-05 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Charles H  God → Norton Quarry #2; 2021-03-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Charles H  God → Charles God Quarry; 2021-03-05 to current/open; source msha-controller-operator-history