# Relationship history for MSHA mine 2400242

Current hierarchy: **Ralph A  Johnsrud; Debbie S  Johnsrud → Elite Properties CA LLC → US Grant**

- 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:** Ed Scheitlin Lessee → US Grant; 1950-01-01 to 1978-12-05; source msha-controller-operator-history
- **controller_controls_mine:** Scheitlin Edward E → US Grant; 1950-01-01 to 1978-12-05; source msha-controller-operator-history
- **controller_controls_operator:** Scheitlin Edward E → Ed Scheitlin Lessee; 1950-01-01 to 1978-12-05; source msha-controller-operator-history
- **operator_operates_mine:** R D Minerals Company → US Grant; 1978-12-06 to 1986-12-04; source msha-controller-operator-history
- **controller_controls_mine:** Delany Robert & Don → US Grant; 1978-12-06 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Delany Robert & Don → R D Minerals Company; 1978-12-06 to 1986-12-04; source msha-controller-operator-history
- **operator_operates_mine:** U S Grant Gold Mining Company Montana Ltd → US Grant; 1986-12-05 to 1990-07-02; source msha-controller-operator-history
- **controller_controls_mine:** U S Grant Gold Mining Company Ltd → US Grant; 1986-12-05 to 1990-07-02; source msha-controller-operator-history
- **controller_controls_operator:** U S Grant Gold Mining Company Ltd → U S Grant Gold Mining Company Montana Ltd; 1986-12-05 to 1990-07-02; source msha-controller-operator-history
- **operator_operates_mine:** Vigilantee Resources → US Grant; 1990-07-03 to 2008-01-06; source msha-controller-operator-history
- **controller_controls_mine:** Hood William Craigie → US Grant; 1990-07-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Hood William Craigie → Vigilantee Resources; 1990-07-03 to 2008-01-06; source msha-controller-operator-history
- **operator_operates_mine:** Elite Properties CA LLC → US Grant; 2008-01-07 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Ralph A  Johnsrud et al → US Grant; 2008-01-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ralph A  Johnsrud et al → Elite Properties CA LLC; 2008-01-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Debbie S  Johnsrud et al → Elite Properties CA LLC; 2008-01-07 to current/open; source msha-controller-operator-history