Wilma, his name is definitely Wisner, not Widner. It occurs in too many independent records for them all to be erroneous. If the name Widner is properly spelled, then the resemblance is coincidence.
Here are the records I have on Wisner, in chronological order:
Grainger Co., TN 1830 p. 357
Harmon Condry 30-40
m [Wisner] <5
Jackson County, AL 1840 M704, r.7, p. 24
Haman [Harmon] Condry, 40-50, 1f 30-40, 1m 10-15 [Wisner], 1f 5-10, 1m <5
Dade Co., MO 1850 M432 roll 398 p. 300
Harmon Condray 53 b. TN, farmer
Jemima 39 b. TN
Wisner 20 b. TN, farmer
Sarah 14 b. AL
John 10 b. AL
Martha 8 b. AL
One unnamed 3 b. MO (male; prob. Marion in 1860
Sebastian Co., AR 1860 p. 1041
W. Condray 29 b. TN, farmer, real estate $300, pers. prop. $100
Harmon 60 b. TN, farmer, real estate $700, pers. prop. $400
[see Haman in 1840 Grainger Co., TN census; 1850 Jackson Co., AL census]
Jemima 45 b. TN
John 21 b. AL
[see in CSA records, 35 AR Inf.]
Mathew 18 b. AL
[see in CSA records, 35 Ark. Inf.; died in Little Rock 1863]
Marion 12 b. MO (male)
Compiled Service Records of Confederate Soldiers Who Served in Organizations from the State of Arkansas, National Archives Microfilm M317
35th Ark. Infantry. Unit designated as 1st Reg. (Rector's) Ark. Inf., Northwest Div., TransMississippi District; King's Regt. Ark. Inf.; McCord's Regt. Ark. Inf.; 35th Regt. Ark. Inf.
M317, Roll 220
35 Ark. Inf. Native of Grainger Co., TN. Residence Sebastian, Ark. Age 32, 5 ft 11 in, brown hair, black eyes, dark complexion. Enlisted June 27, 1862 at Greenwood by James Spring for 3 years or during the war. Present Jun 27-Jul 12. Present in hospital at Ft Smith Jun 18-Oct 31, 1862. Present Oct 31, 1862 -Feb 1863; Feb 28-Apr 30, 1863; listed as Sgt Feb 28-Apr 30 1863 report; absent sick Jun 17, 1863. Deserted Sep 6, 1863.
Sebastian Co., AR 1880 Sheet 19, l. 16 (Center)
Wisner Condray 50 b. TN white male
Aspermet 36 b. Illinois
Mathew T. 12 b. AR
Sarah E.J. 9 b. AR
Mary E. 3 b. AR
William D. 22/30b. AR (22 days old)
Wisner deserted shortly after Matthew, his younger brother, died of disease at Little Rock. Wisner, John, and Matthew had enlisted in the same company on the same day. I imagine Wisner had enough of war and death by then, and like lots of others after Vicksburg and Gettysburg, knew that the war was effectively over. Why go on?
These brothers all have physical descriptions very close to that of Dennis M. Condray, also of Grainger Co., TN. Dennis was recruited into the 1st Cherokee Cavalry (CSA) by Benjamin Wisner Carter; in that regiment were numbers of Indians with the surname Wisner. There were also numbers of Wisners in the War of 1812 from E. TN; I suspect that somewhere is a marriage connection between the families that accounts for Wisner Condry bearing that name.
what is the evidence that it stands for Furnifold?
Furney, with several variant spellings, is a surname which can be found on this FTM forum list. You may know that the records of P.G. Fulkerson, who collected some Claiaborne/Grainger Co genealogy, asserted that one Elizabeth Furney was the wife of William Condry the Indian Spy. I don't believe that; William's brother Dennis, father of Pherney, had a wife named Elizabeth, as that deed shows. So it seems to me more likely that Elizabeth Furney, assuming she existed, was the wife of Dennis, and that the name of their son Pherney is taken from her maiden name. That naming practice gives us some of those otherwise unlikely given names, like Lilburn (my 2ggf), and probably Wisner, and even possibly Wisner's father Hamon/Haman. Granted, he could have been named for the Biblical character, but his name is also a variant of Harmon, one of the early explorers of Kentucky, in whose company we find old Dennis as early as 1775.
It also seems clear that Dennis and William are connected with the family of Richard and Dorcas. My working hypothesis is that the common ancestor is someone from at least two generation earlier, so that Richard is an uncle or cousin of Dennis and William. We may never know, but a few years ago, I would not have believed that I would ever know as much as I do today about these guys. So we keep working....
I'm glad you find some of these posts helpful.