# Relationship history for MSHA mine 1400458

Current hierarchy: **James N  Stone Jr; Shana L  Persinger → Raymond Sand & Gravel, Inc. → Raymond Sand & Gravel**

- 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:** Arensman Sand & Gravel → Raymond Sand & Gravel; 1950-01-01 to 1987-03-31; source msha-controller-operator-history
- **controller_controls_mine:** Virgil  Arensman → Raymond Sand & Gravel; 1950-01-01 to 1987-03-31; source msha-controller-operator-history
- **controller_controls_operator:** Virgil  Arensman → Arensman Sand & Gravel; 1950-01-01 to 1987-03-31; source msha-controller-operator-history
- **operator_operates_mine:** Raymond Sand & Gravel, Inc. → Raymond Sand & Gravel; 1987-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** T Jean  Peter → Raymond Sand & Gravel; 1987-04-01 to 2006-04-11; source msha-controller-operator-history
- **controller_controls_operator:** T Jean  Peter → Raymond Sand & Gravel, Inc.; 1987-04-01 to 2006-04-11; source msha-controller-operator-history
- **controller_controls_mine:** Don  Erickson et al → Raymond Sand & Gravel; 2006-04-12 to 2015-12-31; source msha-controller-operator-history
- **controller_controls_operator:** Don  Erickson et al → Raymond Sand & Gravel, Inc.; 2006-04-12 to 2015-12-31; source msha-controller-operator-history
- **controller_controls_operator:** Brian L  Mosier et al → Raymond Sand & Gravel, Inc.; 2006-04-12 to 2015-12-31; source msha-controller-operator-history
- **controller_controls_mine:** James N  Stone Jr et al → Raymond Sand & Gravel; 2016-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James N  Stone Jr et al → Raymond Sand & Gravel, Inc.; 2016-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Shana L  Persinger et al → Raymond Sand & Gravel, Inc.; 2016-01-01 to current/open; source msha-controller-operator-history