| Sources |
- [S1268] Heard-Hurd Genealogy 1610-1987: Some Descendants of John and Elizabeth (Hull) Heard of Dover, New Hampshire by Charles Samuel Candage and Ralph Ernest Peak. Camden, Maine: Picton Press, 1988.
- [S4384] George Eldridge, Hydrographer, and Eliza Jane His Wife: Their Ancestors and Their Descendants by Henry James Young. Carlisle, Pennsylvania: 1982.
- [S101] The Great Migration Begins: Immigrants to New England, 1620-1633, Volumes 1-3 and The Great Migration: Immigrants to New England,1634-1635, Volumes 1-7, by Robert Charles Anderson. Boston: New England Historic Genealogical Society, 1996-2011.
- [S5881] Ancestral Lines, Fourth Edition: 232 Families in England, Wales, the Netherlands, Germany, New England, New York, New Jersey, and Pennsylvania by Carl Boyer III. Santa Clarita, California, 2015.
- [S212] The Slovak Yankee, by Martin Hollick.
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