1.  Marriage Record:

2a.  1910 Census Index/Images (online at Ancestry.com, Image #39 of 41):  "Supplemental," Montana? Ave., Billings City (Ward 2), T1N&S.R20E, Yellowstone Co., MT, Roll T624_837 (Part 2), p. 85A, SN 20A, SD 2, ED 246, enumerated 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).
	3	4	5	6	7	8	12	13	14	17	18	19	20	23	24
*	Stroup Chas	Head	M	W	27	S	PA	PA	PA	Eng	proprietor	hardware store	Emp	Y	Y
*Montana? Ave

One of many without visitation numbers, who were all crossed out with one big "X" over this page and the previous page.

2b.  1910 Census Index/Images (online at Ancestry.com, Image #22 of 58):  108 No. 21st?/31st?, City of Billings (Ward 2), Yellowstone Co., MT, Roll T624_837 (Part 2), p. 97B, SN 11B, SD 2, ED 247, enumerated ___, 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).
		3	4	5	6	7	8	12	13	14	18
*	108	Stroup Chas	Roomer	M	W	Un	S	Un	Un	Un	None
*No. ?1st

One of 14 roomers in a boarding house.

3.  1920 Census Every-Name-Index/Images (online at Ancestry.com, Image #22 of 33):  233 Wyoming Avenue, Billings City (Ward 3), Yellowstone Co., MT, Roll T625_978 (Book 2), p. 133B, SN 11B, SD 3, ED 167, enumerated 12 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

2

3

4

5

6

7

9

10

11

12

17

18

19

21

23

25

26

27

28

*

233

240

275

Stroup Charles

Head

R

M

W

37

M

Y

Y

PA

PA

PA

Y

Proprietor

Hardware Store

Em

______ Anetta

Wife

F

W

36

M

Y

Y

MO

MO

MO

Y

______ Charles Jr

Son

M

W

5

S

Y

Y

MT

PA

MO

______ Jean

Dau

F

W

1 0?/12

S

Y

Y

MT

PA

MO

*Wyoming Avenue

4.  1930 Census Index/Images (online at Ancestry.com, Image #16 of 22):  524 Clark Avenue, Billings (Ward 3), Billings Twp., Yellowstone Co., MT, Roll 1264, p. 83B, SN 8B, ED 56-7, SD 10, enumerated 9 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

*

524

170

174

Stroup Charles E

Head

O

$6500

R

N

M

W

47

M

28

N

Y

PA

PA

PA

Y

Merchant

Hardware

O

Y

N

______ Annette

Wife

F

W

46

M

27

N

Y

MO

MO

MO

Y

None

______ Charles E Jr

Son

M

W

15

S

Y

Y

MT

PA

MO

Y

None

______ Jean M

Dau

F

W

11

S

Y

Y

MT

PA

MO

Y

None

*Clark Avenue

5.  SSDI:  Social Security Death Index (online at RootsWeb.com):

Name	Birth	Death	Last Residence	SSN	Issued	Post-em
Annette STROUP	02 Dec 1883	Jul 1975	59102 (Billings, Yellowstone, MT)	517-28-0480	MT	No
Charles STROUP	01 Jun 1914	May 1965	59102 (Billings, Yellowstone, MT)	517-05-6133	MT	No

6a.  Messages posted to the Stroup Family Genealogy Forum (online at GenForum.com):  including a post citing the next source and supplying this abstract from vol. 2:

Charles was born to George M. & Mary (Martin) Stroup, natives of Blain, Pennsylvania.  In 1904 Charles E. arrived in Bozeman, then Billings, Montana.  In 1910, Charles E. married Miss Annetta Freeman, daughter of John & Elizabeth Freeman of Missouri. Children: Charles E, b. 1914; Jean, b. 1918.

6b.  Tom Stout.  1921.  Montana, Its Story and Biography.  3 vols.  American Historical Soc., Chicago and New York.  Not seen.