# Relationship history for MSHA mine 1700630

Current hierarchy: **Craig Charles B → Stonebridge Farm → MCBREAIRTY & SONS, 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: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **operator_operates_mine:** Robert Mc Breairty Jr & Sons Inc → MCBREAIRTY & SONS, INC.; 1995-08-01 to 1999-05-06; source msha-controller-operator-history
- **controller_controls_mine:** Mc Breairty Robert → MCBREAIRTY & SONS, INC.; 1995-08-01 to 1999-05-06; source msha-controller-operator-history
- **controller_controls_operator:** Mc Breairty Robert → Robert Mc Breairty Jr & Sons Inc; 1995-08-01 to 1999-05-06; source msha-controller-operator-history
- **operator_operates_mine:** Stonebridge Farm → MCBREAIRTY & SONS, INC.; 1999-05-07 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Craig Charles B → MCBREAIRTY & SONS, INC.; 1999-05-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Craig Charles B → Stonebridge Farm; 1999-05-07 to current/open; source msha-controller-operator-history