Wikipedia
Sealock may refer to:
- Sealock (Family name)
- SEALOCK, an acronym for Search, Locate, and Communicate or Kill
- Seal-Lock (sometimes improperly used or spelled Sealock)
- Sealock Security Systems, Inc.
Sealock is a proper surname that originated within the continental United States. This surname is relatively rare. Ancestry of the Sealock family points in various directions including: England, Ireland, Scotland, Prussia, Belgium. Genetic testing of Sealock family members and research (such as the Melungeon DNA Project) suggests at least tri-racial or Melungeon heritage among those on the East Coast of the US.
Several versions of family stories exist that say Thomas the immigrant arrived in America as an orphaned small child and did not know his last name. Someone, perhaps the ship's captain, gave him the surname Sealock, or "child of the sea." Thomas married Susannah Cooper in 1763 in Chester County, Pennsylvania. They later moved to Loudoun County and Fauquier County, Virginia. Their known children were James, John, William, Thomas, Samuel, Robert, and Mary. Descendants of this family are outlined in "The Sealock Story" (Kendrick Grant Jackson & Joan D. Hackett, 2000) which can be found in several libraries.
While it is known that Thomas, the immigrant, did not live where Melungeons settled, at least some of his descendants did. A male descendant of William Sealock, son of the immigrant Thomas, had an ethnic DNA test taken in October, 2007. Test #121151 observed: 40% European ancestry; 25% Middle Eastern; 20% Native American; 8% North African; and 7% South Asian. This mixture is common for a "Melungeon" profile. As a result, further DNA testing is needed to specify those genetic components that derive from Thomas, the immigrant, and those that are the result of the family's blended American heritage. A female descendant of this same William Sealock, through a different line, had 100% European ancestry in a DNA test, also AncestryByDNA.com.
Public figures from this family include "Brigadier General Neal Sealock", who negotiated for the release of the US EP-3E Aries plane and crew of 24 who were held by China after being struck by a Chinese F-8 fighter near the Chinese border. See Hainan Island incident.