Old Buller or Original Buller?

My brother Dan alerted me this morning that he had located in the Grandma database the Buller-with-no-first-name whom I earlier dubbed Old Buller (see here).

As is evident, Grandma does not know his first name either, but the database provides a summary (or loose translation) of (parts of) the statement accompanying the Buller entry in the Przechovka church register.

Buller entry in the Przechovka church register, with summary/translation below

This is the first time that this family name appears. All the Bullers are descendants of this family. His given name and original residence are not known. He died at a very old age. The only information about his marital status is a notation found with No. 930B and No. 339. This indicates that he was married to Jacob Thomsen’s daughter, Dina, and that she survived him. Jacob Thoms, No. 930, lived at Dorposch. [This last sentence appears to have been inserted into the summary based on the information given at the 930 entry.]

The summary raises as many questions as it answers.

1. What were the approximate dates for this first-identified Buller (number 339)?

2. What is meant that “this is the first time this family name appears”?

3. What does it mean that “all the Bullers are descendants of this family”?

4. Where is Dorposch, the original home of the unknown Buller’s father-in-law?

5. Most important of all, now that we have the Grandma number for the unknown Buller (in fact, let’s call him Unknown Buller for now), can we trace the line from him to our own family head, David?

I suspect that the answer to question 5 is no, but that will not prevent us from at least exploring any possibilities. Before that, however, we should first seek to understand what the summary statement is and is not saying. A series of subsequent posts will do that by addressing the initial questions above—as well as any others that come to mind during the investigation.