There's much "confusion" or potential for surrounding Daniel J. Elliot re: his wives.
First scenario:
Some records mention that his wife, Olive Louise Adams, was his second marriage, which produced only 2 children, Jotham Porter Eliot, Sr. and Harvey Elliot.
I have seen it written online once as Olive "Polly" Louise Adams. I don't have any knowledge that Polly was a common nickname for Olive, such as "Peggy" was for Margaret, but if that is the case, the the nickname of Polly would serve to further call into question Polly Morse, perhaps. However, Polly Morse(1st wife to Daniel J. Elliot bore only one child, Sila Elliot.
Daniel J. Elliot then married his third wife(1st cousin), Ruth Elliot after Olive Louise Adams' death ~1803, and proceeded to have 11 more children.
Second scenario:
Olive Louise Adams did not die ~1803, but died~1859 and bore the majority of Daniel J. Elliot's children.
The confusion of death dates for Olive Louise Adams is based upon a writing of the family history by Olive Louise Adams, which mentions that the family relocated to NH in 1824. Clearly Olive Louise Adams could not have any knowledge of this relocating in 1824 or written of it if she had died in 1803. It all comes down to how accurate the record keeping was by those individuals in the days of yore.
I have not yet verified/corrected any of these claims, yet.
There are records/claims of a Ruth Elliot marrying David Elliot(son of Jonathan Elliot III) in 1803.
While polygamy is not unheard of, these dates/details would conflict based upon further details of Ruth Elliot gave birth ~two months apart to children of Daniel J. Elliot and David Elliot, physically impossible.
There are other Ruth Elliots in the same family tree records, but their birth dates make it impossible to be married to either men.
Alot of the information listed above is taken from EXTENSIVE research from a Steven R. Elliott that he has posted online in downloadable html webpages. Virtually all of the info he has posted that I have had an opportunity to review/research, so far, I have been able to verifiy and found to be correct, but I have just been researching my genealogy for a few years, so.... And as you probably know, the Elliot family name alone is extremely large. (I think we must be part rabbit). Unfortunately, I have not had the pleasure of discussing any info with Steven or his descendants.
I have obtained several records(actual scans of census, marriage, or birth), but not enough to disprove/correct, with any certainty, either scenarios above to my mind.
Any help/info would be greatly appreciated.
Daniel Elliott
And yes, there's far too many Daniels in this damn tree! :D