McManus Stories
Sean O’Cahan — MacManus pedigree, entry 2
Research reference for Sean O’Cahan in the claimed MacManus pedigree.
Sean O’Cahan is the relative named in the entry in entry 2 of the pedigree transcribed in Philip McManus’s heraldry article.
Research profile — identity and relationships not independently confirmed. This is a reference to a person in a disputed pedigree, with room for further evidence. It does not establish a connection to a modern family.
What the entry says
Donnchadh MacManus Of Toneroe, County Roscommon, armiger. His wife Joan, daughter of Sean O’Cahan of County Derry, armiger.
People connected in this entry
| Relationship in the source | Person |
|---|---|
| Claimed daughter | Joan |
| Claimed daughter’s husband | Donnchadh MacManus |
Research still needed
The extract supplies no established birth or death dates for this person. The claim dated 22 February 1774 is not a date for this person’s life. The numbered entries alone do not establish parent–child relationships between successive entries. People with the same first name are kept separate until evidence supports an identification.
Compare the original draft grant with independent records before adding dates, identifying a similarly named person, or accepting the claimed relationship. Philip McManus explicitly questioned the pedigree’s attempt to connect different McManus branches.