# Relationship history for MSHA mine 1519921

Current hierarchy: **Danny D Mead; Virginia Jenny"  Mead Hicks" → MRM MINING INC. → NO. 8**

- 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:** Minerva Ruth  Mead → NO. 8; 2007-10-15 to 2013-05-29; source msha-controller-operator-history
- **controller_controls_mine:** Virginia  Mead → NO. 8; 2013-05-30 to 2021-12-07; source msha-controller-operator-history
- **controller_controls_mine:** Tommy  Jayne → NO. 8; 2018-12-11 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Danny D Mead → NO. 8; 2021-12-08 to 2023-09-30; source msha-controller-operator-history
- **operator_operates_mine:** Coalton Mining → NO. 8; 2022-05-19 to 2024-10-02; source msha-controller-operator-history
- **controller_controls_operator:** Tommy  Jayne → Coalton Mining; 2022-05-19 to 2024-10-02; source msha-controller-operator-history
- **controller_controls_mine:** Danny D Mead et al → NO. 8; 2023-10-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** MRM MINING INC. → NO. 8; 2024-10-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Minerva Ruth  Mead → MRM MINING INC.; 2024-10-03 to 2013-05-29; source msha-controller-operator-history
- **controller_controls_operator:** Virginia  Mead → MRM MINING INC.; 2024-10-03 to 2021-12-07; source msha-controller-operator-history
- **controller_controls_operator:** Danny D Mead et al → MRM MINING INC.; 2024-10-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Virginia Jenny"  Mead Hicks et al" → MRM MINING INC.; 2024-10-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Danny D Mead → MRM MINING INC.; 2024-10-03 to 2023-09-30; source msha-controller-operator-history