# Relationship history for MSHA mine 4607854

Current hierarchy: **Kenneth Cline  Walls II → Kenjean Inc → No 35 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:** U S Mining Inc → No 35 Mine; 1990-03-01 to 1991-06-27; source msha-controller-operator-history
- **controller_controls_mine:** Herbert D  Roberts → No 35 Mine; 1990-03-01 to 1991-06-27; source msha-controller-operator-history
- **controller_controls_operator:** Herbert D  Roberts → U S Mining Inc; 1990-03-01 to 1991-06-27; source msha-controller-operator-history
- **operator_operates_mine:** Lucky M Inc → No 35 Mine; 1991-06-28 to 1993-05-23; source msha-controller-operator-history
- **controller_controls_mine:** Spurrier James L → No 35 Mine; 1991-06-28 to 1993-05-23; source msha-controller-operator-history
- **controller_controls_operator:** Spurrier James L → Lucky M Inc; 1991-06-28 to 1993-05-23; source msha-controller-operator-history
- **operator_operates_mine:** Piper Coal Sales Inc → No 35 Mine; 1993-05-24 to 1994-03-17; source msha-controller-operator-history
- **controller_controls_mine:** Trent Ottaway & Homer Hopkins → No 35 Mine; 1993-05-24 to 1994-03-17; source msha-controller-operator-history
- **controller_controls_operator:** Trent Ottaway & Homer Hopkins → Piper Coal Sales Inc; 1993-05-24 to 1994-03-17; source msha-controller-operator-history
- **operator_operates_mine:** Kenjean Inc → No 35 Mine; 1994-03-18 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Kenneth Cline  Walls II → No 35 Mine; 1994-03-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kenneth Cline  Walls II → Kenjean Inc; 1994-03-18 to current/open; source msha-controller-operator-history