# Relationship history for MSHA mine 0404808

Current hierarchy: **Axel Herman → Herman Axel → C M D**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Doug Mead → C M D; 1986-05-01 to 1988-03-07; source msha-controller-operator-history
- **controller_controls_mine:** Mead Doug → C M D; 1986-05-01 to 1988-03-07; source msha-controller-operator-history
- **controller_controls_operator:** Mead Doug → Doug Mead; 1986-05-01 to 1988-03-07; source msha-controller-operator-history
- **operator_operates_mine:** Herman Axel → C M D; 1988-03-08 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Axel Herman → C M D; 1988-03-08 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Axel Herman → Herman Axel; 1988-03-08 to current/open; source msha-controller-operator-history