# Relationship history for MSHA mine 1300897

Current hierarchy: **Brickworks Limited → Glen-Gery Corporation → Redfield 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

- **controller_controls_mine:** Ibstock Plc → Redfield Pit; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Harris & Sons Construction Company Inc → Redfield Pit; 1950-01-01 to 1998-05-04; source msha-controller-operator-history
- **controller_controls_mine:** Roy  Harris et al → Redfield Pit; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Roy  Harris et al → Harris & Sons Construction Company Inc; 1950-01-01 to 1998-05-04; source msha-controller-operator-history
- **controller_controls_operator:** Kim  Harris et al → Harris & Sons Construction Company Inc; 1950-01-01 to 1998-05-04; source msha-controller-operator-history
- **operator_operates_mine:** Glen-Gery Corp → Redfield Pit; 1998-05-05 to 1998-07-28; source msha-controller-operator-history
- **controller_controls_operator:** Ibstock Plc → Glen-Gery Corp; 1998-05-05 to 1998-07-28; source msha-controller-operator-history
- **operator_operates_mine:** Harris & Sons Construction Company Inc → Redfield Pit; 1998-07-29 to 1999-06-29; source msha-controller-operator-history
- **controller_controls_operator:** Kim  Harris et al → Harris & Sons Construction Company Inc; 1998-07-29 to 1999-06-29; source msha-controller-operator-history
- **controller_controls_operator:** Roy  Harris et al → Harris & Sons Construction Company Inc; 1998-07-29 to 1999-06-29; source msha-controller-operator-history
- **controller_controls_mine:** CRH PLC → Redfield Pit; 1999-05-17 to 2015-02-25; source msha-controller-operator-history
- **operator_operates_mine:** Harris & Sons Construction Company Inc → Redfield Pit; 1999-06-30 to 2004-03-23; source msha-controller-operator-history
- **controller_controls_mine:** Ron  Skellenger et al → Redfield Pit; 1999-06-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ron  Skellenger et al → Harris & Sons Construction Company Inc; 1999-06-30 to 2004-03-23; source msha-controller-operator-history
- **controller_controls_operator:** Gene  Skellenger et al → Harris & Sons Construction Company Inc; 1999-06-30 to 2004-03-23; source msha-controller-operator-history
- **operator_operates_mine:** Glen-Gery Corporation → Redfield Pit; 2004-03-24 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** CRH PLC → Glen-Gery Corporation; 2004-03-24 to 2015-02-25; source msha-controller-operator-history
- **controller_controls_mine:** FIGGS BIDCO 2 LIMITED → Redfield Pit; 2015-02-26 to 2018-11-22; source msha-controller-operator-history
- **controller_controls_operator:** FIGGS BIDCO 2 LIMITED → Glen-Gery Corporation; 2015-02-26 to 2018-11-22; source msha-controller-operator-history
- **controller_controls_mine:** Brickworks Limited → Redfield Pit; 2018-11-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Brickworks Limited → Glen-Gery Corporation; 2018-11-23 to current/open; source msha-controller-operator-history