Your mention of 'Tarby' reminds me of a Scandanavian who worked here by the name of Torbjorn. This is the first time I have heard the name & I don't suppose there is a Scandanavian connection?
In going thru the messages again I have done a googol search to find "Descendants of the Eckerson's in Schoharie, NY" and be reminded of John Eckerson 1780 m Deborah Bice 1790. Another search of Bice gave "Bice Family Bible" with Deborah's brother my ancestor John B(o)ice. A John Bice was in the 1825 Cobleskill census and at Hamden, Delware, NY about 1830/1. His wife was Ellen Aker and I note John & Deborah (Bice) Eckerson's son Abram 1809-1891 m Christina Aker 1817-1899. "Descendants..." notes Ecker(son) and Aker different families.
Hopefully this will give further clues to identify Tarby et al?