1.  Census Index:  U.S. Selected Counties, 1850 (Broderbund CD-317):  can't find.

2.  Family Quest Archives:  Ohio 1860 Census: Marion County .  Heritage Quest CD M653-1006:  Richland Twp., Marion Co., OH, p. 385A, PN 45, 312/304, enumerated 13 Jun 1860 (extracted by Diana Gale Matthiesen):

George Didlebaugh	49	M		Farmer	2000	200	Saxony
Dorothea E  "	52	F					Do
Henry       "	15	M		Do			Ohio

3.  Family Quest Archives:  Ohio Federal Census 1870:  Marion County.  Heritage Quest  CD M593-1240:  Richland Twp., Marion Co., OH, p. 170B, PN 16, enumerated 16 Jul 1870 (extracted by Diana Gale Matthiesen):

1	2	3	4	5	6	7	8	9	10	11	12	19
123	125	Tittelbaugh George	59	M	W	Farmer	3200	500	Saxony	/	/	/
		___________ Dorthy	62	F	W	Keeping House			Do	/	/
		___________ Henry	25	M	W	Farmer			Ohio	/	/	/

4.  1880 Census Images (online at Ancestry.com; Image #14 of 26):  Richland Twp., Marion Co., OH, p. , PN 14, SD 5, ED 96, enumerated 8/9 Jun 1880 (extracted by Diana Gale Matthiesen):

1880:  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

13

24

25

26

119

123

Tittelbaugh George

W

M

69

/

Farmer

GER

GER

GER

___________ Elizabeth

W

F

71

Wife

/

Keeping house

GER

GER

GER

124

___________ Henry

W

M

35

Son

/

Farmer

OH

OH

OH

___________ Martha M

W

F

30

Wife

/

Keeping house

OH

OH

PA

___________ Edward F

W

M

6

Son

/

OH

OH

OH

___________ Emma M

W

F

7/12

Nov

Daughter

/

OH

OH

OH

This is the only TITTELBAUGH/DIDDLEBAUGH/etc. household in Ohio.

5.  Allen L. Potts, extractor.  German Immigrant Death Dates from the Marion County, Ohio, Probate Court Records (online at Heritage Pursuit):

Name	Death Date	Status	Age	Residence	Place of Birth	Occupation
Tittlebaugh, John George	Jan  8, 1896	widowed	85y 2m 25d	Richland Twp	Germany	farmer
Tittlebaugh, Mrs. George	Feb 15, 1898	widowed	89y 7m 29d	Richland Twp	Germany

6.  Paul J. & Barbara Midlam.  1985.  Marion County, Ohio, Cemetery Inscriptions (online at Heritage Pursuit):

TITTLEBAUGH, John George	Jan 8 1896 Aged: 85y 2m 25d		St. Paul's E. Lutheran Church Cemetery	Claridon Twp.
TITTELBAUGH, Dorotha E.	Feb 15 1898 Aged: 89y 7m 29d	w/o John G.	St. Paul's E. Lutheran Church Cemetery	Claridon Twp.
TITTLEBAUGH, Edward	d Jun 1*0 1863	s/o ____	St. Paul's E. Lutheran Church Cemetery	Claridon Twp.

Who is this Edward?  He does not show up in the 1860 Census with our subjects, and Dorothy is too old to have born him between 1860 and 1863.

7.  Birthdate calculated using Ben Buckner's JavaScript Birthday Calculator.

Entered		Result
8 Jan 1896	25d 2m 85y	14 Oct 1810
15 Feb 1898	29d 7m 89y	17 Jun 1812
(Calculated birthdates should always be prefaced with "ca." — you can't be certain the person who calculated their age did it correctly.)