Thomas was born before 1780. His birth date has been estimated based on the age of his nephew Thomas CASSIDY.
The news article of 31 Jul 1828 indicates that Thomas Cassidy is the nephew of Thomas Britton, so it is most likely he is the brother of Thomas’ mother, believed to be Catherine BRITTON. He lived at Mullaghdun Townland about 3 and a half miles from the Cassidy’s. In 1828 he was married had only one son and at least one daughter. Had previously been in Omagh gaol after being falsely accused of passing forged notes. Gave evidence at the trial of Thomas and Stephen Cassidy regarding James McCourt.
There are no Brittons listed as occupiers or landlords at Mullaghdun by the time of the Griffiths Valuation.
It may be possible to confirm family relationships with Thomas by comparing test results with other carriers of his ancestors' Y-chromosome or mitochondrial DNA.
However, there are no known yDNA or mtDNA test-takers in his direct paternal or maternal line.
It is likely that these autosomal DNA test-takers will share DNA with Thomas: