Hi Roz Have you learned anything more about Alexander & Maria? I have same names, but different birthdates. My Alexander was born 1783, and he had a son born 1822. My Alexander was son of Johannes Ostrander. Who was father of your ALEXANDER? Maria Manwaring married first Daniel Shirts in NY; after he died, she married Alexander Ostrander. Maria AKA Hetty AKA Hitty.
My Alexander is found in 1860 census of NY---77 years old. It is not clear if he was living with his daughter-in-law or his spouse.