# Relationship history for MSHA mine 4602856

Current hierarchy: **John A  Laurita → Fancy Mining Company Inc → J & J #2**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-18T09:31:49.615908+00:00

## Valid-time edges

- **operator_operates_mine:** J & J Mining Company Inc → J & J #2; 1950-01-01 to 1977-03-08; source msha-controller-operator-history
- **controller_controls_mine:** James L  Laurita → J & J #2; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James L  Laurita → J & J Mining Company Inc; 1950-01-01 to 1977-03-08; source msha-controller-operator-history
- **controller_controls_mine:** Westbury Coal Inc & Sewickley Coal Management Inc → J & J #2; 1977-03-03 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** J & J Coal Mining Partnership → J & J #2; 1977-03-09 to 1979-12-16; source msha-controller-operator-history
- **controller_controls_operator:** Westbury Coal Inc & Sewickley Coal Management Inc → J & J Coal Mining Partnership; 1977-03-09 to 1979-12-16; source msha-controller-operator-history
- **operator_operates_mine:** Fancy Mining Company Inc → J & J #2; 1979-12-17 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** John A  Laurita → J & J #2; 1979-12-17 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** John A  Laurita → Fancy Mining Company Inc; 1979-12-17 to current/open; source msha-controller-operator-history