# Relationship history for MSHA mine 0404638

Current hierarchy: **The Stony Point Trust; The Mark D. Soiland Living Trust → Soiland Co., Inc. → SOILS PLUS**

- 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:** Lynn  Williams → SOILS PLUS; 1950-01-01 to 1988-05-31; source msha-controller-operator-history
- **operator_operates_mine:** Stony Point Rock Quarry Inc → SOILS PLUS; 1983-02-01 to 1988-05-31; source msha-controller-operator-history
- **controller_controls_operator:** Lynn  Williams → Stony Point Rock Quarry Inc; 1983-02-01 to 1988-05-31; source msha-controller-operator-history
- **operator_operates_mine:** Stony Point Rock Quarry Inc → SOILS PLUS; 1988-06-01 to 1992-04-14; source msha-controller-operator-history
- **controller_controls_mine:** Marvin K  Soiland → SOILS PLUS; 1988-06-01 to 2021-07-21; source msha-controller-operator-history
- **controller_controls_operator:** Marvin K  Soiland → Stony Point Rock Quarry Inc; 1988-06-01 to 1992-04-14; source msha-controller-operator-history
- **operator_operates_mine:** Cheney Gulch Quarry Inc → SOILS PLUS; 1992-04-15 to 1997-12-31; source msha-controller-operator-history
- **controller_controls_mine:** S Troy  Soiland → SOILS PLUS; 1992-04-15 to 1998-06-30; source msha-controller-operator-history
- **controller_controls_operator:** S Troy  Soiland → Cheney Gulch Quarry Inc; 1992-04-15 to 1997-12-31; source msha-controller-operator-history
- **operator_operates_mine:** Soiland Co., Inc. → SOILS PLUS; 1998-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Marvin K  Soiland → Soiland Co., Inc.; 1998-01-01 to 2021-07-21; source msha-controller-operator-history
- **controller_controls_mine:** The Mark D. Soiland Living Trust et al → SOILS PLUS; 2021-07-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** The Mark D. Soiland Living Trust et al → Stony Point Rock Quarry Inc; 2021-07-22 to 1992-04-14; source msha-controller-operator-history
- **controller_controls_operator:** The Stony Point Trust et al → Stony Point Rock Quarry Inc; 2021-07-22 to 1992-04-14; source msha-controller-operator-history
- **controller_controls_operator:** The Stony Point Trust et al → Soiland Co., Inc.; 2021-07-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** The Mark D. Soiland Living Trust et al → Soiland Co., Inc.; 2021-07-22 to current/open; source msha-controller-operator-history