| Sources |
- [S22707] Descendants of Joseph Hascall and Catherine Green, (provided by Richard K. Hascall to the Haskell Family Association).
- [S53585] SSDI: Social Security Death Index, SS# : 498-07-9052 (Reliability: 0).
- [S43491] Stephen Frederick Tillman, The Tilgham-Tillman Families 1638-1934, (National Press Club Washington D.C. December 1 1934), 929.273/T406ta.
- [S43482] Compiled by William C. Brunk, The Progeny of Christopher Brunk, (1981 Park View Press Harrisburg Virginia).
- [S15427] Death index, California, Milton W. McCreary.
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