# Relationship history for MSHA mine 1519539

Current hierarchy: **Thomas R  Hamilton → Nally & Hamilton Enterprise, Inc → Kellioka 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:** Thomas R  Hamilton et al → Kellioka 1; 1974-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Mark  Dotson et al → Kellioka 1; 1988-02-17 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** A & M Coal Co., Inc. → Kellioka 1; 2010-12-08 to 2013-09-23; source msha-controller-operator-history
- **controller_controls_operator:** Mark  Dotson et al → A & M Coal Co., Inc.; 2010-12-08 to 2013-09-23; source msha-controller-operator-history
- **controller_controls_operator:** Anthony K  Dotson et al → A & M Coal Co., Inc.; 2010-12-08 to 2013-09-23; source msha-controller-operator-history
- **operator_operates_mine:** Nally & Hamilton Enterprises, → Kellioka 1; 2013-09-24 to 2013-10-23; source msha-controller-operator-history
- **controller_controls_operator:** Thomas R  Hamilton et al → Nally & Hamilton Enterprises,; 2013-09-24 to 2013-10-23; source msha-controller-operator-history
- **operator_operates_mine:** Tye Fork Coal Company, Inc. → Kellioka 1; 2013-10-24 to 2013-11-13; source msha-controller-operator-history
- **controller_controls_mine:** Thomas R  Hamilton et al → Kellioka 1; 2013-10-24 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Thomas R  Hamilton et al → Tye Fork Coal Company, Inc.; 2013-10-24 to 2013-11-13; source msha-controller-operator-history
- **operator_operates_mine:** Nally & Hamilton Enterprise, Inc → Kellioka 1; 2013-11-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Thomas R  Hamilton et al → Nally & Hamilton Enterprise, Inc; 2013-11-14 to current/open; source msha-controller-operator-history