# Relationship history for MSHA mine 1504244

Current hierarchy: **(Donald) Todd  Kiscaden; Scott  Kiscaden → Jackal Mining Company → No 1**

- 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:** Beth Energy Mines Inc → No 1; 1950-01-01 to 1988-11-27; source msha-controller-operator-history
- **controller_controls_mine:** Bethlehem Steel Corp → No 1; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Bethlehem Steel Corp → Beth Energy Mines Inc; 1950-01-01 to 1988-11-27; source msha-controller-operator-history
- **operator_operates_mine:** Mine 29 Mining & Processing Inc → No 1; 1988-11-28 to 1989-10-17; source msha-controller-operator-history
- **controller_controls_mine:** Gary N  Royalty → No 1; 1988-11-28 to 1989-10-18; source msha-controller-operator-history
- **controller_controls_operator:** Gary N  Royalty → Mine 29 Mining & Processing Inc; 1988-11-28 to 1989-10-17; source msha-controller-operator-history
- **operator_operates_mine:** Jackal Mining Company → No 1; 1989-10-18 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Scott  Kiscaden et al → No 1; 1989-10-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Scott  Kiscaden et al → Jackal Mining Company; 1989-10-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** (Donald) Todd  Kiscaden et al → Jackal Mining Company; 1989-10-18 to current/open; source msha-controller-operator-history