1a.  Jordan R. Dodd, ed.  1998.  Marriage Index: Ohio, 1851-1900.  Liahona Research, Orem, UT (Broderbund CD-236):  not found.

1b.  LDS.  Family Search: Internet Genealogy Service:  IGI - International Genealogical Index (online at FamilySearch.org).

Francis DIDDLEBAUGH Spouse: Ann Eliza STOLL Marriage: 27 Oct 1867, Hardin, Ohio Source: Marriage Records, 1833-1918. Ohio. Probate Court (Hardin County).

Charles BROWN Spouse: Anne E. DIDDLEBAUGH Marriage: 18 Apr 1871, Hardin, Ohio Source: Marriage Records, 1833-1918. Ohio. Probate Court (Hardin County).

Peter HOFFER Spouse: Jonetta DIDDLEBAUGH Marriage: 20 Jan 1879, Hardin, Ohio Source: Marriage Records, 1833-1918. Ohio. Probate Court (Hardin County).

I cannot account for the following source (LDS Fiche #6142831).  The data simply do not jibe with Francis DIDDLEBAUGH having died and left Anna a widow by 1870.  But clearly Anna was a widow in the 1870 Census, and clearly she remarried in 1871, to Charles BROWN.

Mr. DITTLEBAUGH Birth: Abt. 1841, Kenton, Hardin, Ohio Source: LDS Fiche #6142831 -- no matching title found

Mr. DITTLEBAUGH Spouse: Annie Eliza STOLL Marriage: Abt. 1866, Of, Ohio Source: LDS Fiche #6142831 -- no matching title found

John Peter DITTLEBAUGH Birth: 23 Mar 1873, Of, Hardin, Ohio Father: Mr. DITTLEBAUGH; Mother: Annie Eliza STOLL Source: LDS Fiche #6142831 -- no matching title found

Karl Frederick DITTLEBAUGH Birth: 21 Mar 1879, Of, Hardin, Ohio Father: Mr. DITTLEBAUGH; Mother: Annie Eliza STOLL Source: LDS Fiche #6142831 -- no matching title found

John Peter DITTLEBAUGH Spouse: Hattie B. ANSLEY Marriage: Abt. 1898, Of, Ohio Source: LDS Fiche #6142831 -- no matching title found

I thoroughly searched the LDS 1880 census index CDs and could not find a Karl/Carl or Fredrick/Frederick born ca. 1879 with surname remotely approaching DIDDLEBAUGH — anywhere.

2a.  AIS (Accelerated Index System) Census Index (online at Ancestry.com):

1860

Didlebough

Frances

OH

Hardin Co.

Cessna Twp.

p. 402

2b.  1860 Census Images (online at Ancestry.com; Image #5 of 13):  Dunkirk P.O., Cessna Twp., Hardin Co., OH, p. 402B, PN 84, 564/564, enumerated 11 Jul 1860 (extracted by Diana Gale Matthiesen):

Frances Didlebough	26	m			1200	300	Penn
Finey?	30	f					Wortemburg
Jennette	2	f					O
Polly	6	f					Wortemburg
Coonrad	17	m		Day Laborer			"

This record is very hard to figure.  In the 1850 Census, Francis's birthplace was given as Germany, not PA, but that's a minor problem compared to the rest.  It seems fairly obvious that Janette is the daughter of Francis & Finey.  The big problem is the other girl and teenage boy.  Francis was in the U.S. in the 1850 Census, unmarried and without children (living with his parents), so he cannot be the parent of any child born in Württemberg.  Nor are these Francis's siblings because they were not in his parents' household in 1850.  Given their birthplace, we would immediately suspect that Polly and Coonrad were Finey's children from an earlier marriage, especially given Finey's age.  Then again, while Finey's easily old enough to be Polly's mother, it's a stretch to make her Coonrad's mother, unless Finey is lying about her age in the census, which widow's are certainly prone to doing.  Are Coonrad and Polly siblings of Finey?  Or is Polly her daughter and Coonrad her brother?  In any case, we would expect that Coonrad, at least, would be using his own surname.  I suspect the two did have different surnames, and that suspicion is supported by the household next door.  Francis and his family are living next door to Francis's father, Jacob DIDDLEBAUGH.  Living with Jacob is his grandson, Joseph KAHLE, but the enumerator does not give Joseph a  surname, with the implication that Joseph is a DIDDLEBAUGH, when in fact he was not (in the 1850 and 1870 censuses, he was Joseph KAHLE).  I think the enumerator made the same mistake here, that Polly and Coonrad were not surnamed DIDDLEBAUGH.  This error is most unfortunate because their surname could have told us a great deal, especially as Francis died before 1870, so we have no second chance to find out. 

3a.  Family Quest Archives:  Ohio 1870 Census Index.  Heritage Quest ACD-0014:

Surname	Given name	Age	Sex	Race	Birth Place	County	Locality	Roll	Pg
Diddlebaugh	Ann E	24	F	W	OH	Hardin	Pleasant Twp	1219	510
Diddlebaugh	Janette	12	F	W	OH	Hardin	Cessna Twp	1219	344

Ann is widowed and Janette is orphaned.  Given how briefly Francis was married to Ann, it's not surprising that Janette chose to live with her grandfather, rather than her step-mother, after the death of her father.

3b.  1870 Census Images (online at Ancestry.com; Image #19 of 35):  Kenton P.O., Pleasant Twp., Hardin Co., OH, p. 510A, PN 19, enumerated 2 Aug 1870 (extracted by Diana Gale Matthiesen):

1870:  for an explanation of the column headings, please see What the Numbers in the Federal Census Mean (missing columns contained no data).

1

2

3

4

5

6

7

8

9

10

11

12

19

144

138

Stoll George

33

m

W

Farmer

1000

1200

Ohio

/

/

/

_____ Emma

31

f

W

Keeps house

Hesse Cassel

/

/

_____ Amelia

61

f

W

"

/

/

_____ John

22

m

W

works on farm

Ohio

/

/

/

Diddlebaugh Ann E

24

f

W

at home

"

/

/

Odds are that George is Ann's brother.  The other relationships are hard to figure, unless the census-taker made some errors with either ages or birthplaces — or surnames, and I'll wager Amelia is Emma's mother and that her surname (and John's) is not STOLL.

3c.  1870 Census Images (online at Ancestry.com; Image #4 of 19):  Kenton P.O., Cessna Twp., Hardin Co., OH, p. 344B, PN 4, enumerated 3 Jun 1870 (extracted by Diana Gale Matthiesen):

1

2

3

4

5

6

7

8

9

10

11

12

15

19

29

26

Eccarius Valentine

57

m

W

Farmer

5850

1400

Saxony

/

/

/

________ Janette

32

f

W

Keeps house

Pennsylvania

/

/

________ Jacob G

11

m

W

working farm

Ohio

/

/

________ Margaret R

9

f

W

at home

"

/

/

Stahl Francis M

26

m

W

working farm

"

/

Diddlebaugh Janette

12

f

W

at home

"

/

/

___________ Jacob

67

m

W

(Infirm)

2000

Wurtemburgh

/

/

/

The younger Janette is Jacob's granddaughter; the elder Janette's is Jacob's daughter.  Francis STAHL/STOLL is probably a brother of Ann (STOLL) DIDDLEBAUGH.

4.  Deaths in Hardin County, Ohio, 1867 (online at the Hardin County OHGenWeb site):

Name	Date of Death	Age	Place of Death	Place of Birth
DIDDLEBAUGH, Frances	Feb. 21, 1867	30y	Pleasant Twp.	Germany