# Relationship history for MSHA mine 4502825

Current hierarchy: **Lakeside Industries Inc. → Lakeside Industries, Inc. → PALMER JUNCTION GRAVEL PIT-KANASKAT PIT**

- 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

- **controller_controls_mine:** Haley Bob → PALMER JUNCTION GRAVEL PIT-KANASKAT PIT; 1950-01-01 to 1985-07-25; source msha-controller-operator-history
- **controller_controls_mine:** Cliff  Schroeder → PALMER JUNCTION GRAVEL PIT-KANASKAT PIT; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Northwest Rock Products → PALMER JUNCTION GRAVEL PIT-KANASKAT PIT; 1980-05-01 to 1981-03-31; source msha-controller-operator-history
- **controller_controls_mine:** David  Lenhart → PALMER JUNCTION GRAVEL PIT-KANASKAT PIT; 1980-05-01 to 1981-03-31; source msha-controller-operator-history
- **controller_controls_operator:** David  Lenhart → Northwest Rock Products; 1980-05-01 to 1981-03-31; source msha-controller-operator-history
- **operator_operates_mine:** Haley Construction Company → PALMER JUNCTION GRAVEL PIT-KANASKAT PIT; 1981-04-01 to 1985-07-25; source msha-controller-operator-history
- **controller_controls_operator:** Haley Bob → Haley Construction Company; 1981-04-01 to 1985-07-25; source msha-controller-operator-history
- **operator_operates_mine:** Palmer Gravel Company → PALMER JUNCTION GRAVEL PIT-KANASKAT PIT; 1985-07-26 to 1990-02-12; source msha-controller-operator-history
- **controller_controls_mine:** Marvin  Laukala → PALMER JUNCTION GRAVEL PIT-KANASKAT PIT; 1985-07-26 to 1990-02-12; source msha-controller-operator-history
- **controller_controls_operator:** Marvin  Laukala → Palmer Gravel Company; 1985-07-26 to 1990-02-12; source msha-controller-operator-history
- **operator_operates_mine:** Palmer Gravel Company → PALMER JUNCTION GRAVEL PIT-KANASKAT PIT; 1990-02-13 to 1992-09-30; source msha-controller-operator-history
- **controller_controls_mine:** Laurie  Sukert → PALMER JUNCTION GRAVEL PIT-KANASKAT PIT; 1990-02-13 to 1992-09-30; source msha-controller-operator-history
- **controller_controls_operator:** Laurie  Sukert → Palmer Gravel Company; 1990-02-13 to 1992-09-30; source msha-controller-operator-history
- **operator_operates_mine:** Watson Asphalt Paving Company, Inc. → PALMER JUNCTION GRAVEL PIT-KANASKAT PIT; 1992-10-01 to 2023-07-14; source msha-controller-operator-history
- **controller_controls_operator:** Cliff  Schroeder → Watson Asphalt Paving Company, Inc.; 1992-10-01 to 2023-07-14; source msha-controller-operator-history
- **controller_controls_mine:** Lakeside Industries Inc. et al → PALMER JUNCTION GRAVEL PIT-KANASKAT PIT; 2008-07-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Lakeside Industries, Inc. → PALMER JUNCTION GRAVEL PIT-KANASKAT PIT; 2023-07-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Lakeside Industries Inc. et al → Lakeside Industries, Inc.; 2023-07-15 to current/open; source msha-controller-operator-history