Search surviving Stanley Aviation materials for:
- “Harry Schmoll”;
- “Harry W. Schmoll”;
- YANKEE human-test logs;
- extraction-test photographs;
- harness-test reports;
- subcontractor or personnel records;
- film documentation;
- payroll records; and
- travel records.
Former Stanley Aviation collections held by aerospace museums or archives warrant direct archival inquiry rather than reliance solely on online catalogs.