Sites in which the primary focus is the etymology of the name and its variants, a one-name study or organization, relevant genealogy or an associated family history. Jefferies J Surnames Genealogy Society.
- Jim Jefferies (comedian) An Australian stand-up comedian, actor, and writer.
- Jefferies Group An American global investment bank and institutional securities firm headquartered in New York.
- Jefferies tube Jefferies tubes, in the Star Trek fictional universe, are narrow tunnels or inside a starship.
- Alan Jefferies An Australian poet and children's author currently living in Brisbane.
- Chris Jefferies An American former professional basketball player.
- Cindy Jefferies A UK children's writer with sixteen books in print.
- Darren Jefferies A professional footballer who plays as a plays as a midfielder.
- Dinah Jefferies A British novelist, short story and article writer.
- Gregg Jefferies A retired infielder/outfielder in Major League Baseball who had a 14-year career from 1987 to 2000.
- Jim Jefferies (footballer) A Scottish football manager and former player.
- Matt Jefferies An American aviation and mechanical artist, set designer, and writer.
- Family Jefferies of Choctaw County www
Family tree of Dan and Georgia Jefferies of Oklahoma USA. Jefferies of Choctaw County.
- Family Jefferies: Newfoundland www
Family history of Thomas Jefferies (Jeffries) born in Crewkerne, Newfoundland, Somerset, ENG. Compiled by Carol A Jefferies from Stittsville, ON CAN. Jefferies: Newfoundland.
- Ancestry Jefferies Family Tree www
Ancestry of Michael Robert Jefferies. Jefferies Family Tree.
- Family Jefferies www
Family history of William Jefferies (1831-1913) as compiled by descendant Michael Jefferies. Jefferies.
- Family Jefferies www
Family tree of Tommy Joe Jefferies from Albuquerque, Jefferies, NM USA. Jefferies.
- Research Jeffery Family at Loon's Echo www
Research compiled by Brian Raymond Jeffery. Jeffery Family at Loon's Echo.
- Family Jeffery www
Family tree of David Christopher Jeffery including surnames Jeffery (ENG, Jeffery, CAN, USA), LaFave or LaFay (CAN, USA), Walters (IRE, USA), and Maziarz (POL, USA). Jeffery.
- Lineages Jeffries www
Lineages from Stoke-on-Trent, Jeffries, Staffordshire, UK as compiled by Paul David Jeffries.
- Family Jeffries www
Family tree of Patricia A Jeffries. Jeffries.
- Family Janvrin www
Family history of Lance K Janvrin Snr, Janvrin, Lynn, MA USA. Janvrin.
- Established Jordan www
Established to find matches between the various family lines. Jordan. Includes Y testing kit and current results. Jordan.
- Alexa: Jefferies
Alexa Directory Top Sites: Jefferies
- DMOZ: Jefferies
dmoz.org Directory: Jefferies