She was widowed living with Isabella 16 and Charles 9 in College Street Ramsey entry no.116. It looks like Charles was buried in 1842 since there are no more children after that year- see iomfhs.im research section.
After the burials look at the wills for James Cojeen 1857 and Isabella Cojeen 1845 both from Lonan. There is a mention of an Ann Corkill.
James may have married Elizabeth Cowin after the death of Isabella- see IGI