I don't find Jacob in the 1910 census, and in the 1900 census he was in MO.  So, did he really die in 1911 in OH?

— born in Rocky Run Twp., Hancock Co., IL:
5.  Lucy STROUP, b. Dec 1859
6.  Richard STROUP, b. 1861/2
7.  Andrew Lafayette STROUP, b. 1867/8

1.  Marriage Record:

2a.  1850 Census Index/Images (online at Ancestry.com):  not found, but Talladega Co., AL, is not indexed.

2b.  Census Index:  U.S. Selected Counties, 1850 (Broderbund CD-317):  not found, and Talladega Co., AL, is indexed.

3.  1860 Census Index/Images (online at Genealogy.com, Image #16 of 20):  Warsaw P.O., Rocky Tun Twp., Hancock Co., IL, Roll 184 (Book 1), p. 784, PN 523, 3706/3600, enumerated 31 Jul 1860, official enumeration date 1 Jun 1860 (extracted by Diana Gale Matthiesen):¤•

Jacob D Stroup	32	M		Farm Laborer		100	SC
Dorcas B  "	33	F					Tenn
Knox      "	8	M					Alabama
Eugene H  "	5	M					"
Minnie    "	3	F					"
Infant    "	5/12	F					Ills

Living next door to Jacob's brother, Andrew Jackson STROUP. 

4.  1870 Census Index/Images (online at Genealogy.com, Image #28 of 28):  Warsaw P.O., Township 3 N 8 W [T3N.R8W], Hancock Co., IL, p. 443B, PN 28, 211/202, enumerated 1 Aug 1870, official enumeration date 1 Jun 1870 (extracted by Diana Gale Matthiesen):¤•

Stroup Jacob	40	M	W	Farmer	1800	350	South Carolina
______ Dorcas	44	F	W	Keeping House			Tennesee
______ Knox	18	M	W				Alabama
______ Eugene	16	M	W				Alabama
______ Minnie	13	F	W				Alabama
______ Lucy	10	F	W				Illinois
______ Richard	8	M	W				Illinois
______ Lafayette	2	M	W				Illinois

5.  1880 Census (indexed at FamilySearch.org; page image online at Ancestry.com, Image #16 of 17):  Rocky Run Twp., Hancock Co., IL, Roll 211, p. 262D, PN 16, SD 3, ED 77, enumerated 30 Jun 1880, official enumeration date 1 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).

2

3

4

5

6

8

9

10

13

21

24

25

26

150

Stroup Jacob

W

M

52

/

Farmer

SC

Pa

SC

______ Dorcus B

W

F

53

Wife

/

House Keeper

Tenn

Va

Tenn

______ John K

W

M

28

Son

/

At Home

Ala

SC

Tenn

______ Eugene

W

M

25

Son

/

School Teacher

Ala

SC

Tenn

______ Minnie A

W

F

23

Dau

/

School Teacher

Ala

SC

Tenn

______ Richard

W

M

17

Son

/

/

Ala

SC

Tenn

______ Andrew L

W

M

11

Son

/

/

Ala

SC

Tenn

6.  1890 Census:  the 1890 Census Population Schedules were destroyed.

7.  1900 Census Every-Name-Index/Images (online at Ancestry.com, Image #19 of 20):  Lewistown, LaBelle Twp., Lewis Co., MO, Roll T623_870, p. 82A, SN 10, SD 1, ED 52, enumerated 20 Jun 1900, official enumeration date 1 Jun 1900 (extracted by Diana Gale Matthiesen):¤•

1900:  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	13	14	15	22	23	24	25	26	27
215	216	Stroup Jacob D	Head	W	M	Nov 1828	71	M	50			SC	PA	SC	Y	Y	Y	O	F	H
		______ Darcus C	Wife	W	F	May 1826	74	M	50	7	5	TN	KY	TN	Y	Y	Y

Listed next to married son, John Knox STROUP.

8.  1910 Census Every-Name-Index/Images (online at Ancestry.com):  can't find Jacob or Dorcas.  Did he really die in 1911?

9.  WorldConnect / Ancestry World Trees (online at RootsWeb.com/Ancestry.com).

10.  Messages posted to the Stroup Family Genealogy Forum (online at GenForum.com).