# Relationship history for MSHA mine 3400058

Current hierarchy: **Patrick  Alexander; Michael  O'Connor → Cold Spring Granite Company → Charlie Brown**

- 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:** Patrick  Alexander → Charlie Brown; 1950-01-01 to 2024-05-20; source msha-controller-operator-history
- **operator_operates_mine:** Wichita Granite Company → Charlie Brown; 1950-01-01 to 1978-04-11; source msha-controller-operator-history
- **controller_controls_mine:** Wichita Granite Company → Charlie Brown; 1950-01-01 to 1978-04-11; source msha-controller-operator-history
- **controller_controls_operator:** Wichita Granite Company → Wichita Granite Company; 1950-01-01 to 1978-04-11; source msha-controller-operator-history
- **controller_controls_mine:** Jack W  Seiders → Charlie Brown; 1950-01-01 to 1989-03-31; source msha-controller-operator-history
- **operator_operates_mine:** Great Plains Granite Company Inc → Charlie Brown; 1978-04-12 to 1985-04-24; source msha-controller-operator-history
- **controller_controls_mine:** Lowell Ron → Charlie Brown; 1978-04-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Lowell Ron → Great Plains Granite Company Inc; 1978-04-12 to 1985-04-24; source msha-controller-operator-history
- **operator_operates_mine:** Capitol Marble & Granite Company Inc → Charlie Brown; 1985-04-25 to 1989-03-31; source msha-controller-operator-history
- **controller_controls_operator:** Jack W  Seiders → Capitol Marble & Granite Company Inc; 1985-04-25 to 1989-03-31; source msha-controller-operator-history
- **operator_operates_mine:** Cold Spring Granite Company → Charlie Brown; 1989-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Patrick  Alexander → Cold Spring Granite Company; 1989-04-01 to 2024-05-20; source msha-controller-operator-history
- **controller_controls_mine:** Michael  O'Connor → Charlie Brown; 2024-05-21 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Michael  O'Connor → Cold Spring Granite Company; 2024-05-21 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Patrick  Alexander → Cold Spring Granite Company; 2024-05-21 to current/open; source msha-controller-operator-history