The notation about Henry being born in Ostego county comes from another branch of the family: http://trees.ancestry.com/tree/11870737/person/-381796044?pg...
Lillian Schermerhorn was Henry's granddaughter. Her son, Floyd Reid, related to his family (Annie Reid), that his mother talked about Henry being born in Otsego county. This is why I've been focusing my search for his documentation in the Milford/Laurens area. But I have not found proof of his birth.
In the Ackley family history, my husband's gg-grandmother's family is listed as being members of the Baptist church in Milford Center. Also, in the town history of Milford, there is a notation that your family started attending the same church shortly after moving into the area in 1819. I don't know if you've been in contact with the Baptist Church, but that is a possibility for finding christening and marriage records.