# Relationship history for MSHA mine 3608744

Current hierarchy: **Carl  Albert; John  Lucas → C & L Coal Company → Lv #3 Slope**

- 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:** Larry  Madenford et al → Lv #3 Slope; 1997-08-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** M & M Anthracite Coal Company → Lv #3 Slope; 1998-08-01 to 2001-01-31; source msha-controller-operator-history
- **controller_controls_operator:** Larry  Madenford et al → M & M Anthracite Coal Company; 1998-08-01 to 2001-01-31; source msha-controller-operator-history
- **operator_operates_mine:** C & L Coal Company → Lv #3 Slope; 2001-02-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Carl  Albert et al → Lv #3 Slope; 2001-02-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Carl  Albert et al → C & L Coal Company; 2001-02-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** John  Lucas et al → C & L Coal Company; 2001-02-01 to current/open; source msha-controller-operator-history