Welcome to the Grimason One Name Study genealogy site.

This  has been specially created for the;






families of the world.


So, if you are a member of one of these families or have an interest in any of these surnames or member of your family married a person of one of these surnames then you ought to find this of some interest.

The data /research is intended to cover up to the year 2000AD only, there will be some exceptions.

All image files are copies or transcriptions of the original files from various sources all information where possible has been either copied or transcribed to ensure it represents the original.

As much effort as possible has been made to ensure the information is correct based on records found.

Many hours of work have been put into this creation plus many dollars have been spent obtaining the certificates or image files.

Please do advise me if you do find any errors and please do advise me of your source so I can in turn check that source as well.

Legacy Family Tree is the genealogical program that I use and it is the Deluxe version of this genealogical program that I use, the SE version is Free.

You will need to register at LegacyFamilyTree.com to get the unlock code for the SE version, this is all Free.


This is a Guild of One Names Registered One Name Study registered in July 1998 then again in August 2012


Find your ancestors and share your family tree connections. This site is free of charge and has no advertising.

Please contact the webmaster to find out more and to contribute your own Grimason details.

The aim is to build the entire Grimason and Grimison family tree throughout the whole world back to the earliest times.

By establishing the various Pedigrees I hope to be able to either prove the family legend about three brothers or disprove the legend.

The Grimason name is traceable back to the 18th Century. in the rural areas around the townlands of Drumcree,Lurgan, Portadown, Seagoe and Tanderagee in County Armagh, Ireland.
There is some evidence to indicate that the family was also in the Dungannon Area of county Tyrone in the late 1780's.

For years the families occupations appear to have been farmer, tailor and weaver with some opting for a life in the Armed forces .

Some of the family remain in the area today and others have migrated throughout UK and the world,even so the family surname as such remains fairly rare, this has not been helped by parts of the family taking up or adopting other surnames.