# Relationship history for MSHA mine 1511152

Current hierarchy: **Moore Vernoy → Bullion Hollow Mining Company Inc → Mine #1**

- 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

- **operator_operates_mine:** James Rush Mining Inc → Mine #1; 1978-01-01 to 1979-08-07; source msha-controller-operator-history
- **controller_controls_mine:** Rush James → Mine #1; 1978-01-01 to 1979-08-07; source msha-controller-operator-history
- **controller_controls_operator:** Rush James → James Rush Mining Inc; 1978-01-01 to 1979-08-07; source msha-controller-operator-history
- **operator_operates_mine:** James Rush Mining Inc → Mine #1; 1979-08-08 to 1980-10-21; source msha-controller-operator-history
- **controller_controls_mine:** Big Bee Mining Corp → Mine #1; 1979-08-08 to 1980-10-21; source msha-controller-operator-history
- **controller_controls_operator:** Big Bee Mining Corp → James Rush Mining Inc; 1979-08-08 to 1980-10-21; source msha-controller-operator-history
- **operator_operates_mine:** James Rush Mining Inc → Mine #1; 1980-10-22 to 1988-05-22; source msha-controller-operator-history
- **controller_controls_mine:** Bethune Louis → Mine #1; 1980-10-22 to 1988-05-22; source msha-controller-operator-history
- **controller_controls_operator:** Bethune Louis → James Rush Mining Inc; 1980-10-22 to 1988-05-22; source msha-controller-operator-history
- **controller_controls_mine:** Moore Vernoy → Mine #1; 1981-10-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Horizon Mining Company Inc → Mine #1; 1988-05-23 to 1989-03-05; source msha-controller-operator-history
- **controller_controls_mine:** Watts Marvin → Mine #1; 1988-05-23 to 1989-03-05; source msha-controller-operator-history
- **controller_controls_operator:** Watts Marvin → Horizon Mining Company Inc; 1988-05-23 to 1989-03-05; source msha-controller-operator-history
- **operator_operates_mine:** Bullion Hollow Mining Company Inc → Mine #1; 1989-03-06 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Moore Vernoy → Bullion Hollow Mining Company Inc; 1989-03-06 to current/open; source msha-controller-operator-history