# Relationship history for MSHA mine 4102354

Current hierarchy: **James B  Pace Jr → Genoa Sand Pit Inc → GENOA SAND PIT, INC.**

- 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:** L W K Inc → GENOA SAND PIT, INC.; 1950-01-01 to 1989-01-03; source msha-controller-operator-history
- **controller_controls_mine:** Kirksey L W → GENOA SAND PIT, INC.; 1950-01-01 to 1989-01-03; source msha-controller-operator-history
- **controller_controls_operator:** Kirksey L W → L W K Inc; 1950-01-01 to 1989-01-03; source msha-controller-operator-history
- **operator_operates_mine:** Genoa Sand Pit Inc → GENOA SAND PIT, INC.; 1989-01-04 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** James B  Pace Jr → GENOA SAND PIT, INC.; 1989-01-04 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James B  Pace Jr → Genoa Sand Pit Inc; 1989-01-04 to current/open; source msha-controller-operator-history