I also found the family on the on the 1870 census for Manatee County.DeSoto County was formed from Manatee.
Elias and Elizabeth have the following children:
Georgia Ann, 21
Elias is 52 and a farmer and Elizabeth is 35.
I also found an obit for Oscar and Stephen.It looks like Stephen worked for the railroad and you might find some info through that avenue.I'm not sure how, but I have read that people have done that.Apparently, the railroad has always kept good records.
Also found this:
1900 US Federal Census, Arcadia (Town) ~ Precinct 9, Desoto County, Florida
McCLENITHAN, William - Head, W, M, Oct, 1847, 52, M, 32, GA, VT, SC, Farmer
McCLENITHAN, Georgia - Wife, W, F, Nov, 1845, 54, M, 32, 5, 2, AL, AL, TN
The Fort Myers Press (Lee County)
Thursday September 12, 1907
Steve McClenithan, and old settler of Fort Myers, who has recently been employed
as a section hand on the Atlantic Coast Line, had his arm and leg severed from
his body, by the south bound freight, last Friday night at about 7 o'clock, and
died within an hour or two after the accident happened. Mr. McClenithan, with
three or four others, was on a hand car, when the freight came along, and not
having a light on the car were not discovered by the train men. The others jumped
from the car, but for some reason McClenithan remained and was caught by the
engine and his arm and leg cut off clean.
We learn since writing the above that the widow of Steve McClenithan has sued the
A. C. L. Ry. Co. for $10,000. It is said that the glass in the headlight was broken,
and that the head light was not lit for that reason, so that it will require
evidence in court to show whether the company was to blame or that the accident
happened through the carelessness of the men on the hand car.
THE FORT MYERS PRESS, Thursday, Feb. 27, 1908
Body of dead man floating in river -- Came in with the tide
Man identified as Oscar McClenithan -- Had been out for oysters
Quite a good deal of excitement was occasioned on our streets Wednesday afternoon when it
was reported the body of a dead man had been found floating in the river at the Edison
dock. The reporter in company with Judge A. B. Beall hastened to the Edison home and
thence to the dock, where he met F. Ott, an electrician at the Edison Laboratory who
stated that about three o'clock in the afternoon he saw the body some few feet from the
dock. He waited and the tide soon drifted the body to the dock. He secured it with a rope
and then went and told his fellow workman of the horrible find.
A message was sent to the store of H. A. Hendry. Sheriff Tippins was then notified and
he, under instructions from Judge Beall impanelled a jury. The jury went and viewed the
body and brought in a verdict that deceased came to his death by drowning.
Some few days ago Oscar McClenithan and young Jenkins went down the river for oysters.
They have not been heard of since. A few days later Capt. Cates' boat, Free Lance, was
coming up the river and found a sail. It is thought the sail was from the boat of the men
mentioned above. Later Wednesday afternoon the dead man was identified as Oscar
McClenithan. The whereabouts of Jenkins is not known, but it is feared that he also
No trace of violence was found on the body of the unfortunate man, and drowning is
believed to have been the cause of death. The body was in a bad state of decomposition.
The face was badly eaten away, but this was thought to have been done by crabs and fishes.
Deceased leaves a wife and three children to mourn his loss. The sympathy of the
community is extended to the bereaved family.
LATER -- Just as we go to press news reaches us that the body of Martin Jenkins, who was
with McClenithan, was found near Four Mile Island. No particulars.
I am not sure if these two men are the ones you are looking for, but it's possible the Fort Myers News-Press had an actual obit for them, listing their survivors by name. Hope all this helps.