1.  Illinois Statewide Marriage Index, 1763–1900:  not found.

2.  1850 and 1860 Censuses:  Jonathan is still living with his father.

3a.  1870 Census Every-Name-Index/Images (online at Ancestry.com, Image #4 of 49):  Grayville P.O., Grayville Pct., White Co., IL, Roll M593_289, p. 394B, PN 4, 28/27, enumerated 15 Aug 1870, official enumeration date 1 Jun 1870 (extracted by Diana Gale Matthiesen):¤•

Stroup William	27	M	W	Common Laborer			Illinois
______ Jonathan	24	M	W	Common Laborer			Illinois

William STROUP is Jonathan's brother.  Listed next to their brother, Andrew J. STROUP.

3b.  1870 Census Every-Name-Index/Images (online at Ancestry.com, Image #22 of 37):  Maple Grove P.O., Shelby Pct., Edwards Co., IL, Roll, p. 367B, PN 22, 140/140, enumerated 27 Jul 1870, official enumeration date 1 Jun 1870 (extracted by Diana Gale Matthiesen):¤•

Grandline Peter	38	M	W	Farmer	1808	475	Prussia
"    Mary A	30	F	W	Keeping House			Missouri
[Peter & Mary's children]
Stroup Jonathan	26	M	W	Farmer			Illinois

Mary (STROUP) GRANDLINE/GREATLINE is Jonathan's sister.  Jonathan seems to have managed to get himself enumerated twice.

4.  1880 Census Every-Name-Index/Images (online at Ancestry.com, Image #18 of 25):  Leech Twp., Wayne Co., IL, Roll T9_257, p. 197B, PN 18, SD 8, ED 145, enumerated 21 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).

1

2

3

4

5

6

8

9

10

11

13

15

21

24

25

26

171

171

Straup John

W

M

36

/

farm

IL

PA

PA

______ Laura

W

F

28

wife

/

Keeping house

IL

IL

IL

______ Bertie

W

M

5

son

/

/

IL

IL

IL

Staup Jacob

W

M

73

father

/

Retired farmer

old age

PA

PA

PA

5.  1890 Census:  the 1890 Census Population Schedules were destroyed.

6.  1900 Census Every-Name-Index/Images (online at Ancestry.com, Image #23 of 41 — indexed "Jankin"):  Leech Twp., Wayne Co., IL, Roll T623_351, p. 210A, SN 12, SD 14, ED 103, enumerated 18 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	19	20	21	22	23	24	25	26	27	28
229	236	Stroup Jon???	Head	W	M	Jan 1844	56	M	27			IL	PA	PA	Farmer	0		Y	Y	Y	O	F	F	138
		______ Laura	Wife	W	F	Feb 1851	49	M	27	3	3	IL	IL	IL				Y	Y	Y
		______ Frank O	Son	W	M	Oct 1887	12	S				IL	IL	IL	Farm laborer		6	Y	Y	Y
		______ Freddie M	Son	W	M	Jan 1895	5	S				IL	IL	IL

Listed next to son, Bert S. STROUP.

7.  1910 Census Index/Images (online at Ancestry.com, Image #2 of 7):  Ellery Pct., Edwards Co., IL, Roll T624_284 (Part 1), p. 212B, SN 7B, SD 15, ED 18, enumerated 6/7 May 1910, official enumeration date 15 Apr 1910 (extracted by Diana Gale Matthiesen):¤•

1910:  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	7	8	9	10	11	12	13	14	17	18	19	20	23	24	25	26	27	28
157	Stroup John	Head	M	W	66	M1	37			IL	PA	PA	Eng	Carpenter	??? in ???	OA	Y	Y		O	F	H
	______ Laura	Wife	F	W	59	M1	37	3	3	IL	IL	IL	Eng	None			Y	Y
	______ Freddie	Son	M	W	15	S				IL	IL	IL	Eng	None			Y	Y	Y

He is the only STROUP in Edwards County.

8.  1920 Census Index/Images (online at Ancestry.com, Image #22 of 33):  Fifth St., Albion City (Ward 3), Albion Pct., Edwards Co., IL, Roll T625_305, p. 201A, SN 12A, SD 16, ED 19, enumerated 14 Jan 1920, official enumeration date 1 Jan 1920 (extracted by Diana Gale Matthiesen):¤•

1920:  for an explanation of the column headings, please see What the Numbers in the Federal Census Mean (missing columns contained no data).
1	3	4	5	6	7	8	9	10	11	12	17	18	19	21	23	25	26
*	304	316	Stroup J S	Head	O	F	M	W	76	M	Y	Y	IL	PA	PA	Y	None
			______ Laura	Wife			F	W	68	M	Y	Y	IL	IL	IL	Y	None
*Fifth Street

Listed next to son, Bert S. STROUP, who is next to grandson, Roy S. STROUP.

9.  1930 Census Index/Images (online at Ancestry.com, Image #12 of 34):  130 South Fifth St., Albion City, Edwards Co., IL, Roll 512, p. 175B, SN 6B, ED 24-1, SD 28, enumerated 7 Apr 1930, official enumeration date 1 Apr 1930 (extracted by Diana Gale Matthiesen):¤•

1930:  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

16

17

18

19

20

24

25

26

27

28

30

31

*

130

159

167

Stroup Jonathan S

Head

O

3000

R

N

M

W

86

M

29

N

Y

IL

PA

PA

Y

None

Y

CW

______ Laura

Wife

F

W

79

M

22

N

Y

IL

IL

IL

Y

None

______ Fred M

Son

M

W

35

M

31

N

Y

IL

IL

IL

Y

Electrician

Wiring

W

Y

Y

WW

______ Ethel A

Dau-in-law

F

W

31

M

27

N

Y

IL

IL

IL

Y

None

______ Betty Louise

Gr-Dau

F

W

3 2/12

S

N

IN

IL

MO

None

*South Fifth Street

10.  Civil War Pension Index (index and images online at Ancestry.com):

Name of Soldier	Stroup, Jonathan S.
Name of Dependent	Widow	Stroup, Laura
	Minor
Service	I 40 Ill. Inf.
Date of Filing	Claim	Application No.	Certificate No.	State from which Filed
1879 Dec 11	Invalid	333,772?	820044
1933 Mar 8	Widow	1731,850	A-11-2?33	Ill
	Minor

11.  Illinois Civil War Rosters from the Adjutant General's Report: Company "I" [Edwards and Wabash Counties] 40th Illinois Infantry (online at ILGenWeb: Illinois in the Civil War):

Assigned to:  Army of the Tennessee, March 1862 - July 1865
Battles/Campaigns Engaged in:  Shiloh, Siege of Corinth, Operations against Vicksburg [Siege of Vicksburg], Missionary Ridge [Chattanooga], Atlanta Campaign [Kenesaw Mountain, Atlanta, Ezra Chapel, Jonesborough], March to the Sea, Campaign of the Carolinas [Bentonville]
Name	Rank	Residence	Date of Muster	Remarks
STROUP, J S	Private	Wabash Co	Aug 10, 1861

Mustered in same date as brothers Andrew and William.

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

12.  Messages posted to the STROUP Surname Board (online at Ancestry.com).