# Relationship history for MSHA mine 4000827

Current hierarchy: **Lemuel Baylis  Carnes III → Shiloh Sand & Gravel, Inc. → Shiloh Sand & Gravel, Inc.**

- 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:** Dowdy & Lacher Inc → Shiloh Sand & Gravel, Inc.; 1950-01-01 to 1989-09-30; source msha-controller-operator-history
- **controller_controls_mine:** B R  Lacher → Shiloh Sand & Gravel, Inc.; 1950-01-01 to 1989-09-30; source msha-controller-operator-history
- **controller_controls_operator:** B R  Lacher → Dowdy & Lacher Inc; 1950-01-01 to 1989-09-30; source msha-controller-operator-history
- **operator_operates_mine:** Tenn-Tom Trading Company Inc → Shiloh Sand & Gravel, Inc.; 1989-10-01 to 1992-01-09; source msha-controller-operator-history
- **controller_controls_mine:** Timothy W  Smith → Shiloh Sand & Gravel, Inc.; 1989-10-01 to 1992-01-09; source msha-controller-operator-history
- **controller_controls_operator:** Timothy W  Smith → Tenn-Tom Trading Company Inc; 1989-10-01 to 1992-01-09; source msha-controller-operator-history
- **operator_operates_mine:** Dowdy & Lacher Inc → Shiloh Sand & Gravel, Inc.; 1992-01-10 to 1993-03-10; source msha-controller-operator-history
- **controller_controls_mine:** B M  Gray → Shiloh Sand & Gravel, Inc.; 1992-01-10 to 1993-03-10; source msha-controller-operator-history
- **controller_controls_operator:** B M  Gray → Dowdy & Lacher Inc; 1992-01-10 to 1993-03-10; source msha-controller-operator-history
- **operator_operates_mine:** American Materials Inc → Shiloh Sand & Gravel, Inc.; 1993-03-11 to 1998-07-21; source msha-controller-operator-history
- **controller_controls_mine:** Phillips Tony → Shiloh Sand & Gravel, Inc.; 1993-03-11 to 1998-07-21; source msha-controller-operator-history
- **controller_controls_operator:** Phillips Tony → American Materials Inc; 1993-03-11 to 1998-07-21; source msha-controller-operator-history
- **operator_operates_mine:** Santana Dredging Corp → Shiloh Sand & Gravel, Inc.; 1998-07-22 to 2002-12-31; source msha-controller-operator-history
- **controller_controls_mine:** Gary W  Vickery → Shiloh Sand & Gravel, Inc.; 1998-07-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Gary W  Vickery → Santana Dredging Corp; 1998-07-22 to 2002-12-31; source msha-controller-operator-history
- **operator_operates_mine:** Santana Dredging Corporation → Shiloh Sand & Gravel, Inc.; 2003-01-01 to 2004-09-13; source msha-controller-operator-history
- **controller_controls_mine:** Charles R  Smith → Shiloh Sand & Gravel, Inc.; 2003-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Charles R  Smith → Santana Dredging Corporation; 2003-01-01 to 2004-09-13; source msha-controller-operator-history
- **operator_operates_mine:** Shiloh Sand & Gravel, Inc. → Shiloh Sand & Gravel, Inc.; 2004-09-14 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Lemuel Baylis  Carnes III → Shiloh Sand & Gravel, Inc.; 2004-09-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Lemuel Baylis  Carnes III → Shiloh Sand & Gravel, Inc.; 2004-09-14 to current/open; source msha-controller-operator-history