# Relationship history for MSHA mine 1800783

Current hierarchy: **York Building Products Co Inc → Eastern Shore Sand and Gravel → Ingleside Pit**

- 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:** Patuxent Materials Inc → Ingleside Pit; 2009-08-19 to 2014-04-20; source msha-controller-operator-history
- **controller_controls_mine:** Francis E  Gardiner III et al → Ingleside Pit; 2009-08-19 to 2022-06-30; source msha-controller-operator-history
- **controller_controls_operator:** Francis E  Gardiner III et al → Patuxent Materials Inc; 2009-08-19 to 2014-04-20; source msha-controller-operator-history
- **operator_operates_mine:** Eastern Shore Sand and Gravel → Ingleside Pit; 2014-04-21 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** David J  Stewart → Ingleside Pit; 2014-04-21 to 2016-03-07; source msha-controller-operator-history
- **controller_controls_operator:** David J  Stewart → Eastern Shore Sand and Gravel; 2014-04-21 to 2016-03-07; source msha-controller-operator-history
- **controller_controls_mine:** York Building Products Company Inc et al → Ingleside Pit; 2016-03-08 to 2021-01-03; source msha-controller-operator-history
- **controller_controls_operator:** York Building Products Company Inc et al → Eastern Shore Sand and Gravel; 2016-03-08 to 2021-01-03; source msha-controller-operator-history
- **controller_controls_operator:** Patuxent Materials Inc et al → Eastern Shore Sand and Gravel; 2016-03-08 to 2021-01-03; source msha-controller-operator-history
- **controller_controls_mine:** York Building Products Co Inc → Ingleside Pit; 2021-01-04 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** York Building Products Co Inc → Eastern Shore Sand and Gravel; 2021-01-04 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** FEG III Spousal Trust et al → Ingleside Pit; 2022-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** FEG III Spousal Trust et al → Patuxent Materials Inc; 2022-07-01 to 2014-04-20; source msha-controller-operator-history
- **controller_controls_operator:** Francis E Gardiner III 2017 Irrevocable Trust etal → Patuxent Materials Inc; 2022-07-01 to 2014-04-20; source msha-controller-operator-history