# Relationship history for MSHA mine 3401951

Current hierarchy: **Tommy  Caldwell → BlueBird Stone → Maranatha Pit**

- 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:** Maranatha Stone, LLC → Maranatha Pit; 2005-01-26 to 2026-07-14; source msha-controller-operator-history
- **controller_controls_mine:** Michael D  Johnson → Maranatha Pit; 2005-01-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Michael D  Johnson → Maranatha Stone, LLC; 2005-01-26 to 2026-07-14; source msha-controller-operator-history
- **controller_controls_mine:** Tommy  Caldwell  et al → Maranatha Pit; 2007-12-19 to 2016-01-31; source msha-controller-operator-history
- **controller_controls_mine:** Tommy  Caldwell → Maranatha Pit; 2016-02-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** BlueBird Stone → Maranatha Pit; 2026-07-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Tommy  Caldwell  et al → BlueBird Stone; 2026-07-15 to 2016-01-31; source msha-controller-operator-history
- **controller_controls_operator:** Danny  Caldwell  et al → BlueBird Stone; 2026-07-15 to 2016-01-31; source msha-controller-operator-history
- **controller_controls_operator:** Tommy  Caldwell → BlueBird Stone; 2026-07-15 to current/open; source msha-controller-operator-history