# Relationship history for MSHA mine 1519660

Current hierarchy: **James H  Booth → Mayo Resources Inc → No. 7**

- 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:** James H  Booth et al → No. 7; 1987-03-04 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Mayo Resources Inc → No. 7; 2012-04-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James H  Booth et al → Mayo Resources Inc; 2012-04-23 to current/open; source msha-controller-operator-history