Unfortunately, prior to 1850, the census only gives the name of the head of the household . The tick marks and numbers refer to the number of males or females in a specific age group that reside in that family. Aged parents might be singled out by a 20+ year age gap with the head of the household. You can try and single out which "Post" families have a male in the correct age group in 1810. Then, you can hope to find a biography or historical books of Albany County that might mention that family in the Albany area. If they stayed there long enough and were land owners, you can try and trace land records or wills which might mention the wife and children. Unless you find someone who has already done this research, you'll have to try and ferret out this information yourself. Have you tried looking for a "Post"
family history book?
http://www.lib.byu.edu/fhc/index.php is a link to BYU familiy history books that are online. If you can access Heritage Quest through your local library, they also have old books online. Also, try the googlebooks search, you just might get lucky.
Sorry I can't be more helpful.
