# Relationship history for MSHA mine 4103130

Current hierarchy: **Joe  Mc Clellan → Metro Stone Company → MC KINNEY PIT & PLT**

- 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:** Joe  Mc Clellan → MC KINNEY PIT & PLT; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** B & J Stone Company → MC KINNEY PIT & PLT; 1982-10-01 to 1988-09-06; source msha-controller-operator-history
- **controller_controls_mine:** Carl  Copeland → MC KINNEY PIT & PLT; 1982-10-01 to 1988-09-06; source msha-controller-operator-history
- **controller_controls_operator:** Carl  Copeland → B & J Stone Company; 1982-10-01 to 1988-09-06; source msha-controller-operator-history
- **operator_operates_mine:** Metro Stone Company → MC KINNEY PIT & PLT; 1988-09-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Joe  Mc Clellan → Metro Stone Company; 1988-09-07 to current/open; source msha-controller-operator-history