# Relationship history for MSHA mine 4104133

Current hierarchy: **Dean  Graham; Gay  Graham → G and G Operators, LTD → SITEWINDER #1**

- 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

- **operator_operates_mine:** Lewis Construction Company Inc → SITEWINDER #1; 2000-02-01 to 2015-01-22; source msha-controller-operator-history
- **controller_controls_mine:** Henry D  Lewis III → SITEWINDER #1; 2000-02-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Henry D  Lewis III → Lewis Construction Company Inc; 2000-02-01 to 2015-01-22; source msha-controller-operator-history
- **controller_controls_mine:** Dean  Graham et al → SITEWINDER #1; 2007-05-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** G and G Operators, LTD → SITEWINDER #1; 2015-01-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Dean  Graham et al → G and G Operators, LTD; 2015-01-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Gay  Graham et al → G and G Operators, LTD; 2015-01-23 to current/open; source msha-controller-operator-history