Your post is more than 10 years old, so the email address may no longer be valid. I just discovered that Alexander McOstriche leased the 13 acre property 'Carolina' in Cork from my great great grandfather Joseph Hatton Carroll in about 1848 or 1849. The McOstriche family lived there for some time. The house was later pulled down and the housing estate of Ard na Laoi was built on the site.
Sorry I am not a relative but just have a little information about your GG grandfather.