# Relationship history for MSHA mine 1515335

Current hierarchy: **Demski Lydia → Deer Path Corp → #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:** Cedar Gap Mining Inc → #1; 1985-08-01 to 1986-06-22; source msha-controller-operator-history
- **controller_controls_mine:** Crawford Kenneth Et Al → #1; 1985-08-01 to 1986-06-22; source msha-controller-operator-history
- **controller_controls_operator:** Crawford Kenneth Et Al → Cedar Gap Mining Inc; 1985-08-01 to 1986-06-22; source msha-controller-operator-history
- **operator_operates_mine:** K J Mining → #1; 1986-06-23 to 1987-02-17; source msha-controller-operator-history
- **controller_controls_mine:** Lang Kermit J → #1; 1986-06-23 to 1987-02-17; source msha-controller-operator-history
- **controller_controls_operator:** Lang Kermit J → K J Mining; 1986-06-23 to 1987-02-17; source msha-controller-operator-history
- **operator_operates_mine:** Silver Bullet Coal → #1; 1987-02-18 to 1987-04-01; source msha-controller-operator-history
- **controller_controls_mine:** Gibson Ronnie Et Al → #1; 1987-02-18 to 1987-04-01; source msha-controller-operator-history
- **controller_controls_operator:** Gibson Ronnie Et Al → Silver Bullet Coal; 1987-02-18 to 1987-04-01; source msha-controller-operator-history
- **operator_operates_mine:** Astor Coal Company → #1; 1987-04-02 to 1988-02-10; source msha-controller-operator-history
- **controller_controls_mine:** Lanham Roy Et Al → #1; 1987-04-02 to 1988-02-10; source msha-controller-operator-history
- **controller_controls_operator:** Lanham Roy Et Al → Astor Coal Company; 1987-04-02 to 1988-02-10; source msha-controller-operator-history
- **operator_operates_mine:** D & J Coal Company → #1; 1988-02-11 to 1989-03-07; source msha-controller-operator-history
- **controller_controls_mine:** Rodney  Sanders → #1; 1988-02-11 to 1989-03-07; source msha-controller-operator-history
- **controller_controls_operator:** Rodney  Sanders → D & J Coal Company; 1988-02-11 to 1989-03-07; source msha-controller-operator-history
- **operator_operates_mine:** T & H Coal Company → #1; 1989-03-08 to 1989-10-08; source msha-controller-operator-history
- **controller_controls_mine:** Henegar Tommy Et Al → #1; 1989-03-08 to 1989-10-08; source msha-controller-operator-history
- **controller_controls_operator:** Henegar Tommy Et Al → T & H Coal Company; 1989-03-08 to 1989-10-08; source msha-controller-operator-history
- **operator_operates_mine:** Deer Path Corp → #1; 1989-10-09 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Demski Lydia → #1; 1989-10-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Demski Lydia → Deer Path Corp; 1989-10-09 to current/open; source msha-controller-operator-history