# Relationship history for MSHA mine 4001780

Current hierarchy: **Arnold Jim L → Delta Pine Coal Company Inc → 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:** Lafollette Mining Company → No 1; 1975-01-01 to 1977-11-21; source msha-controller-operator-history
- **controller_controls_mine:** Hatmaker Lonnie & Jerry Cross → No 1; 1975-01-01 to 1977-11-21; source msha-controller-operator-history
- **controller_controls_operator:** Hatmaker Lonnie & Jerry Cross → Lafollette Mining Company; 1975-01-01 to 1977-11-21; source msha-controller-operator-history
- **operator_operates_mine:** La Follette Mining Company → No 1; 1977-11-22 to 1978-07-26; source msha-controller-operator-history
- **controller_controls_mine:** Southern States Corp → No 1; 1977-11-22 to 1978-07-26; source msha-controller-operator-history
- **controller_controls_operator:** Southern States Corp → La Follette Mining Company; 1977-11-22 to 1978-07-26; source msha-controller-operator-history
- **operator_operates_mine:** Eastern-Debbie Coal Company → No 1; 1978-07-27 to 1979-01-11; source msha-controller-operator-history
- **controller_controls_mine:** Groom David & Lonnie Hatmaker → No 1; 1978-07-27 to 1979-01-11; source msha-controller-operator-history
- **controller_controls_operator:** Groom David & Lonnie Hatmaker → Eastern-Debbie Coal Company; 1978-07-27 to 1979-01-11; source msha-controller-operator-history
- **operator_operates_mine:** Cove Lake Mining Inc → No 1; 1979-01-12 to 1980-07-01; source msha-controller-operator-history
- **controller_controls_mine:** Wallace Phillip → No 1; 1979-01-12 to 1980-07-01; source msha-controller-operator-history
- **controller_controls_operator:** Wallace Phillip → Cove Lake Mining Inc; 1979-01-12 to 1980-07-01; source msha-controller-operator-history
- **operator_operates_mine:** Welden Brothers Inc → No 1; 1980-07-02 to 1980-09-03; source msha-controller-operator-history
- **controller_controls_mine:** Welden Alec C → No 1; 1980-07-02 to 1980-09-03; source msha-controller-operator-history
- **controller_controls_operator:** Welden Alec C → Welden Brothers Inc; 1980-07-02 to 1980-09-03; source msha-controller-operator-history
- **operator_operates_mine:** Delta Pine Coal Company Inc → No 1; 1980-09-04 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Arnold Jim L → No 1; 1980-09-04 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Arnold Jim L → Delta Pine Coal Company Inc; 1980-09-04 to current/open; source msha-controller-operator-history