My boyfriend of 6 years is a Donnell, and I've been doing pretty extensive research on his ancestry. I found this forum doing regular Google searches of different Donnell names. I realize that your message "Arthur C. Donnell - from old book History of Bath [ME]..," is from a few years ago, and I apologize if you've already discovered the information.
(In regards to the last paragraph of the message:)
I can verify that Thomas DONNELL and Elizabeth (WEARE) DONNELL had 5 children, one of them a son named Nathaniel DONNELL (he is often referred to as 'Capt.' or 'Esq' in my research). I have conflicting information on the dates of his birth and death. Born in 1681? or 1674? and Died on 2-29-1780? or 1761?
Nathaniel married Elizabeth TODD (b. 4-16-1688, d. after 1761, daughter of John TODD) on 5-14-1711.
If you would like any more information on the DONNELL family, I can help you! Let me know. -Fairlee Anderson
(Note: To clarify, the people I am referring to are from the original lineage of Henry DONNELL (b. 1602)of England and his wife, Frances GOOCH. The couple moved to York, Maine in roughly the 1630's.)