# Relationship history for MSHA mine 3800053

Current hierarchy: **Wienerberger AG → General Shale Brick, Inc. → TURKEY CREEK**

- 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:** Boral Limited → TURKEY CREEK; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Augusta Sand & Gravel Inc → TURKEY CREEK; 1950-01-01 to 1980-09-02; source msha-controller-operator-history
- **controller_controls_mine:** Milton R  Boyette  et al → TURKEY CREEK; 1950-01-01 to 1994-11-09; source msha-controller-operator-history
- **controller_controls_operator:** Milton R  Boyette  et al → Augusta Sand & Gravel Inc; 1950-01-01 to 1980-09-02; source msha-controller-operator-history
- **operator_operates_mine:** Boral Bricks Inc → TURKEY CREEK; 1980-09-03 to 2017-03-31; source msha-controller-operator-history
- **controller_controls_operator:** Boral Limited → Boral Bricks Inc; 1980-09-03 to 2017-03-31; source msha-controller-operator-history
- **controller_controls_mine:** Wienerberger AG → TURKEY CREEK; 2002-07-19 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Meridian Brick LLC → TURKEY CREEK; 2017-04-01 to 2023-03-29; source msha-controller-operator-history
- **controller_controls_mine:** Lone Star Funds Inc et al → TURKEY CREEK; 2017-04-01 to 2021-10-17; source msha-controller-operator-history
- **controller_controls_operator:** Lone Star Funds Inc et al → Meridian Brick LLC; 2017-04-01 to 2021-10-17; source msha-controller-operator-history
- **controller_controls_operator:** Boral Industries Inc et al → Meridian Brick LLC; 2017-04-01 to 2021-10-17; source msha-controller-operator-history
- **controller_controls_mine:** Wienerberger AG → TURKEY CREEK; 2021-10-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Wienerberger AG → Meridian Brick LLC; 2021-10-18 to 2023-03-29; source msha-controller-operator-history
- **operator_operates_mine:** General Shale Brick, Inc. → TURKEY CREEK; 2023-03-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Wienerberger AG → General Shale Brick, Inc.; 2023-03-30 to current/open; source msha-controller-operator-history