The Guild of One-Name Studies is the world’s leading organisation for one-name studies. A one-name study is a projectA Project is a Windows folder, created by Family Historian, which contains all your Family Tree information recorded in Family Historian. Normally located in the Documents\Family Historian Projects folder. researching factsFacts are one of the key concepts at the heart of Family Historian; they are how you record the things that happened to, or described, each ancestor (Individual). about a surname and all the people who have held it, as opposed to a particular pedigree of ancestors or descendants.

Link: One-Name Studies Guild