# Relationship history for MSHA mine 0404794

Current hierarchy: **Jack  Bankhead → Mt Gaines Rock → MT. GAINES MINE**

- 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:** Mt Gaines Resources Inc → MT. GAINES MINE; 1986-03-01 to 1992-04-14; source msha-controller-operator-history
- **controller_controls_mine:** Joseph S Hudson → MT. GAINES MINE; 1986-03-01 to 1992-04-14; source msha-controller-operator-history
- **controller_controls_operator:** Joseph S Hudson → Mt Gaines Resources Inc; 1986-03-01 to 1992-04-14; source msha-controller-operator-history
- **operator_operates_mine:** Mt Gaines Consolidated → MT. GAINES MINE; 1992-04-15 to 2003-08-24; source msha-controller-operator-history
- **controller_controls_mine:** Shirley  Nowicki et al → MT. GAINES MINE; 1992-04-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Shirley  Nowicki et al → Mt Gaines Consolidated; 1992-04-15 to 2003-08-24; source msha-controller-operator-history
- **controller_controls_operator:** John  Sandy et al → Mt Gaines Consolidated; 1992-04-15 to 2003-08-24; source msha-controller-operator-history
- **operator_operates_mine:** Mt Gaines Rock → MT. GAINES MINE; 2003-08-25 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jack  Bankhead → MT. GAINES MINE; 2003-08-25 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jack  Bankhead → Mt Gaines Rock; 2003-08-25 to current/open; source msha-controller-operator-history