I'm sorry to say, I don't have much info on the Percival's as yet.I don't have the names of Elisha & Sarah's children.All I do have is the names of Elisha's parents and his brothers and sisters.They are:
(Parents)John Percival & Sarah Tomlinson.
Brothers & Sisters are:
William Percival b 1816 married unknown Selina Percival b 1821 married Thomas Prosser Lemuel Percival b 1824 married Anne Mary Tranter Harriet Percival b 1833 married unknown
All the children were born in Polesworth, Thurlaston, Leicestershire, England.
I'm not familiar with an Irish connection, but if any of the names ring any bells with you, please let me know.