I'm Stuck. The Story of Nathaniel Mitchell Clark and Almedia Van Koughnet

Okay, so I'm in an interesting situation. I have a couple that disappear in Ontario after 1877 and I'm thinking there's something wrong with the research. I beg your assistance, please! There has to be something I'm not seeing here. There are four scenarios that I see: 

1. The Almedia Clark died in 1873 is my 3rd great grandmother.
2. The other majority (including myself) is right and there's an Almedia Storring out there to find. 
3. There's a huge combination of errors here leading me to completely erroneous conclusions.
4. There's such a huge lack of missing information that's what's causing the problem. 

What would you suggest to do next? I'll give you the background, and see what you think.

Let me begin at the beginning. Almedia VanKoughnet (sometimes listed as Van Coughnette) was born in Frdericksburg, Lennox & Addington Co, Ontario in 1827. She marries Nathaniel Mitchell Clark, has 7 children (Margaret, Hulda, William James, Foster, Rhoda, Mahala, and Georgiana) between 1846 and 1864. I've got her nailed down in Madoc, Hastings Co, Ontario, in 1852, and then in Kennebec, Frontenac, Ontario in 1861. The two censuses I have about Nathaniel Mitchell Clark say he was born in Canada about 1823. (Note: when they were married is a big question mark. We have no evidence of the marriage.)

1852 census of Madoc, Hastings, Ontario

1861 census of Kennebec, Frontenac, Ontario

Now here's where the research I have lead differs from some of the other researchers. There's an Almedia Van Koughnet recorded as having a child with Gilbert O. Storing in 1869, and they are in the 1871 census as having the Clark children and Frances Victoria Storing in Kennebec.

"1952-69 (Frontenac Co) STORING, Frances Victoria, f, b. 20 Dec. 1869, father - Gilbert O. STORING, sawyer, mother - Almeda VANCOUGHNETTE (s/b Vankoughnet), infm - father, Kennebec"

http://freepages.genealogy.rootsweb.ancestry.com/~births/Sto_Sz_Surnames.htm

1871 census of Kennebec, Frontenac, Ontario

So that would lead me to conclude that Nathaniel probably died in between 1861 and 1871. Thing is, I can't find a marriage for Almedia and Gilbert AND I can't seem to find a death for Nathaniel, either. It would be a little early for a death for Nathaniel (age 38-48), but not unheard of for the time period.

But then, there's a death record for an Almedia Clark, died 18 April 1873, age 42 in South Fredericksburg, Lennox & Addington, Ontario, and the witness was William M. Clark. But the age is off (not by a lot) and the change in the middle initial is making me suspicious that this is not correct.

Ontario Death Record for an Almedia Clark, d. 18 April 1873

So now we are split. There's about half of us that believe that we should be looking for an Almeda Storring, and another half that believes the Almedia Clark who died in 1873 is our woman, and Nathaniel's death wasn't recorded (for whatever reason).

And from there...excepting Foster, who ends up in the US, my 2nd great grandmother Mahala, and Georgiana, who has one appearance in the 1881 census, the entire family drops off the map. Just gone.

As a side note, Gilbert survives them all, living until age 92 until he passes away as a destitute widower in Dover, Kent, Ontario on 5 June 1910.

Ontario Death Record for Gilbert Storring, d. 5 June 1910.

I look forward to hearing from you!

Just as a side note, here's some additional information about the family:

Nathaniel Mitchell Clark
1823-
(Last mention: 1861)

Almedia Vankoughnet
1827-
(Last mention: 1871)

Margaret Clark
1846-
(Last mention: 1861)

Hulda Clark
1848-
(Last mention: 1867)

William James Clark
1849-
(Last mention: 1871)

Foster Clark
1852-
(Last mention: 1911)

Rhoda Clark
1855-
(Last mention: 1877)

Mahala Jane Clark
1861-1932
(Last mention: 1932)

Georgiana Clark
1864-
(Last mention: 1881)

Gilbert O. Storing
1818-1910
(disappears from 1871-1910)

Frances Victoria Storing
1869-
(Last mention: 1871)