# Relationship history for MSHA mine 0103041

Current hierarchy: **Wesley Brad  Bull; Curtis Kevin  Kyser → TCSG, LLC → Turkey Creek Sand and Gravel**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-18T09:31:49.615908+00:00

## Valid-time edges

- **operator_operates_mine:** Turkey Creek Sand & Gravel, Inc. → Turkey Creek Sand and Gravel; 1995-04-01 to 2026-02-08; source msha-controller-operator-history
- **controller_controls_mine:** Bonnie G  Farris Et Al → Turkey Creek Sand and Gravel; 1995-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Bonnie G  Farris Et Al → Turkey Creek Sand & Gravel, Inc.; 1995-04-01 to 2026-02-08; source msha-controller-operator-history
- **operator_operates_mine:** TCSG, LLC → Turkey Creek Sand and Gravel; 2026-02-09 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Curtis Kevin  Kyser et al → Turkey Creek Sand and Gravel; 2026-02-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Curtis Kevin  Kyser et al → TCSG, LLC; 2026-02-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Wesley Brad  Bull et al → TCSG, LLC; 2026-02-09 to current/open; source msha-controller-operator-history