# Relationship history for MSHA mine 4406889

Current hierarchy: **Paul  Ison → South Fork Mine Inc → Mine 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

- **controller_controls_mine:** Jessica B  Ison  et al → Mine No 1; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Ricky L  Owens → Mine No 1; 1982-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Danny  Justus → Mine No 1; 1996-07-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Southfork Mining Inc → Mine No 1; 1997-10-01 to 1999-12-13; source msha-controller-operator-history
- **controller_controls_operator:** Danny  Justus → Southfork Mining Inc; 1997-10-01 to 1999-12-13; source msha-controller-operator-history
- **controller_controls_mine:** Kevin  Lowe → Mine No 1; 1999-08-31 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Ambrose Branch Coal Company Inc → Mine No 1; 1999-12-14 to 2000-04-20; source msha-controller-operator-history
- **controller_controls_operator:** Jessica B  Ison  et al → Ambrose Branch Coal Company Inc; 1999-12-14 to 2000-04-20; source msha-controller-operator-history
- **controller_controls_operator:** Paul R  Ison  et al → Ambrose Branch Coal Company Inc; 1999-12-14 to 2000-04-20; source msha-controller-operator-history
- **operator_operates_mine:** Four-O-Mining Company Inc → Mine No 1; 2000-04-21 to 2000-09-17; source msha-controller-operator-history
- **controller_controls_operator:** Ricky L  Owens → Four-O-Mining Company Inc; 2000-04-21 to 2000-09-17; source msha-controller-operator-history
- **operator_operates_mine:** Hosanna Llc → Mine No 1; 2000-09-18 to 2001-08-05; source msha-controller-operator-history
- **controller_controls_operator:** Kevin  Lowe → Hosanna Llc; 2000-09-18 to 2001-08-05; source msha-controller-operator-history
- **operator_operates_mine:** South Fork Mine Inc → Mine No 1; 2001-08-06 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Paul  Ison → Mine No 1; 2001-08-06 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Paul  Ison → South Fork Mine Inc; 2001-08-06 to current/open; source msha-controller-operator-history