1.  Marriage Record:

2.  1890 Census:  the 1890 Census Population Schedules were destroyed.

3.  1900 Census Every-Name-Index/Images (online at Ancestry.com, Image #20 of 28):  Union Twp., Jasper Co., MO, Roll T623_867 (Book 1), p. 281B, SN 10, SD 13, ED 70, enumerated 16 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

190

194

Stroup William

Head

W

M

Sept 1861

38

M

12

IL

IL

IL

Farmer

0

Y

Y

Y

O

F

F

164

______ Emma

Wife

W

F

Mar 1865

35

M

12

5

4

IL

VA

IL

Y

Y

Y

______ Lois

Dau

W

F

Jan 1889

11

S

MO

IL

IL

at School

6

Y

Y

Y

______ Maggie

Dau

W

F

Aug 1890

9

S

MO

IL

IL

at School

6

Y

Y

Y

______ Eva

Dau

W

F

Jul 1892

7

S

MO

IL

IL

at School

6

Y

Y

Y

______ Arthur

Son

W

M

Mar 1894

6

S

MO

IL

IL

at School

6

Y

Y

Y

William's father was born in SC.

4.  1910 Census Index/Images (online at Ancestry.com, Image #13 of 25):  Union Twp., Jasper Co., MO, Roll T624_791 (Part 1), p. 121A, SN 7A, SD 13, ED 84, enumerated 27/28 Apr 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).

1

2

3

4

5

6

7

8

9

10

11

12

13

14

17

18

19

20

21

22

23

24

25

26

27

28

29

133

135

Stroup William

Head

M

W

48

M2

IL

GA

KY

Eng

Farmer

General Farm

Emp

Y

Y

O

F

F

116

______ Sarah

Wife

F

W

46

M2

0

1

1

MO

TN

TN

Eng

None

Y

Y

______ Maggie

Dau

F

W

20

S

MO

IL

IL

Eng

Laborer

Home farm

W

N

0

Y

Y

______ Eva

Dau

F

W

17

S

MO

IL

IL

Eng

Laborer

Home farm

W

N

0

Y

Y

Y

______ Arthur

Son

M

W

16

S

MO

IL

IL

Eng

Laborer

Home farm

W

N

0

Y

Y

Y

______ Neva

Dau

F

W

8

S

MO

IL

IL

Eng

Y

______ Fay

Dau

F

W

5

S

MO

IL

IL

Y

Cabaugh? William

Hired man

M

W

24

S

KS

PA

IA

Eng

Laborer

on farm

W

N

5

Y

Y

William's father was born in SC, and his mother was born in IL.  William & Sarah have married within the year.  Sarah apparently had one surviving child during her former marriage.

5.  1920 Census Index/Images (online at Ancestry.com, Image #13 of 22):  McDonald Twp., Jasper Co., MO, Roll T625_922 (Book 2), p. 14A, SN 7A, SD 13, ED 77, enumerated 22/23 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).
2	3	4	5	6	7	8	9	10	11	12	17	18	19	21	23	25	26	27	28	29
Fm	144	149	Stroup Sarah J	Head	O	F	F	W	56	M	Y	Y	MO	MO	TN	Y	Farmer	Garden	Em	142

Where's William?  And the children?  I really searched the index, and I even did a page-by-page check of McDonald Twp.

6.  1930 Census Index/Images (online at Ancestry.com, Image #8 of 16):  McDonald Twp., Jasper Co., MO, Roll 1205 (Book 2), p. 250B, 4B, ED 49-38, SD 15, enumerated 14 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).
3	4	5	6	7	10	11	12	13	14	16	17	18	19	20	24	25	26	27	28	32
101	103	Stroup Sarah J	Head	O	Y	F	W	66	Wd	N	Y	MO	TN	TN	Y	Farmer	Stock farm	O	Y	91