# Relationship history for MSHA mine 0301619

Current hierarchy: **John D  Smith → Blue Bayou Sand & Gravel, LLC → BLUE BAYOU SAND & GRAVEL LLC**

- 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:** Blue Bayou Sand & Gravel → BLUE BAYOU SAND & GRAVEL LLC; 1987-01-01 to 1991-10-21; source msha-controller-operator-history
- **controller_controls_mine:** James F  Edwards → BLUE BAYOU SAND & GRAVEL LLC; 1987-01-01 to 1991-10-21; source msha-controller-operator-history
- **controller_controls_operator:** James F  Edwards → Blue Bayou Sand & Gravel; 1987-01-01 to 1991-10-21; source msha-controller-operator-history
- **operator_operates_mine:** Texarkana Redi-Mix Inc → BLUE BAYOU SAND & GRAVEL LLC; 1991-10-22 to 1993-03-31; source msha-controller-operator-history
- **controller_controls_mine:** Paul  Jewell → BLUE BAYOU SAND & GRAVEL LLC; 1991-10-22 to 1993-03-31; source msha-controller-operator-history
- **controller_controls_operator:** Paul  Jewell → Texarkana Redi-Mix Inc; 1991-10-22 to 1993-03-31; source msha-controller-operator-history
- **operator_operates_mine:** Blue Bayou Sand & Gravel → BLUE BAYOU SAND & GRAVEL LLC; 1993-04-01 to 2004-05-18; source msha-controller-operator-history
- **controller_controls_mine:** Danny  Jewell → BLUE BAYOU SAND & GRAVEL LLC; 1993-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Danny  Jewell → Blue Bayou Sand & Gravel; 1993-04-01 to 2004-05-18; source msha-controller-operator-history
- **operator_operates_mine:** S. White Co, Inc. → BLUE BAYOU SAND & GRAVEL LLC; 2004-05-19 to 2009-12-31; source msha-controller-operator-history
- **controller_controls_mine:** Steve  White → BLUE BAYOU SAND & GRAVEL LLC; 2004-05-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Steve  White → S. White Co, Inc.; 2004-05-19 to 2009-12-31; source msha-controller-operator-history
- **operator_operates_mine:** Blue Bayou Sand & Gravel, LLC → BLUE BAYOU SAND & GRAVEL LLC; 2010-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** John Woodrow  Smith → BLUE BAYOU SAND & GRAVEL LLC; 2010-01-01 to 2016-05-04; source msha-controller-operator-history
- **controller_controls_operator:** John Woodrow  Smith → Blue Bayou Sand & Gravel, LLC; 2010-01-01 to 2016-05-04; source msha-controller-operator-history
- **controller_controls_mine:** John D  Smith → BLUE BAYOU SAND & GRAVEL LLC; 2016-05-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** John D  Smith → Blue Bayou Sand & Gravel, LLC; 2016-05-05 to current/open; source msha-controller-operator-history