# Relationship history for MSHA mine 0404282

Current hierarchy: **Gallen David J → Golden Quail Resources → Golden Quail Mill**

- 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:** Vanderbilt Gold Corp → Golden Quail Mill; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Transcorp Technology Inc → Golden Quail Mill; 1979-01-01 to 1980-08-31; source msha-controller-operator-history
- **controller_controls_mine:** Transcorp Ltd → Golden Quail Mill; 1979-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Transcorp Ltd → Transcorp Technology Inc; 1979-01-01 to 1980-08-31; source msha-controller-operator-history
- **operator_operates_mine:** Vanderbilt Gold Corp → Golden Quail Mill; 1980-09-01 to 1986-11-05; source msha-controller-operator-history
- **controller_controls_operator:** Vanderbilt Gold Corp → Vanderbilt Gold Corp; 1980-09-01 to 1986-11-05; source msha-controller-operator-history
- **controller_controls_mine:** Gallen David J → Golden Quail Mill; 1986-11-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Golden Quail Resources → Golden Quail Mill; 1986-11-06 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Gallen David J → Golden Quail Resources; 1986-11-06 to current/open; source msha-controller-operator-history