1.  Marriage Record:

2.  1900 Census Index/Images (online at Genealogy.com, Image #4-5 of 65):  25 Forsyth St., Jacksonville (Ward 4, Precinct 18), Duval Co., FL, Roll 168 (Book 1), pp. 224B-225A, SN 2-3, SD 2, ED 46, enumerated 2 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	22	23	24
*	25	33	42	Hopkins H A	Boarder	W	M	Jul __74	25 26	M	2			PA	PA	PA	Insurance	0	Y	Y	Y
				"    Mrs H A	"	W	F	Nov __79	20 21	M	2	1	1	GA	NH	VA			Y	Y	Y
				"    Miss Ruby	"	W	F	Apr 1900	1/12 6/12	S				GA	PA	GA			Y	Y	Y
*Forsyth St

Living in a hotel — there were 20 "boarders" in the hotel, all of whom were single working men, except for our subjects.  With regard to their ages, the enumerator had written in the lower numbers, then someone had squeezed in the upper numbers.  Ellen's twin brother gives his birth (in the 1900 census) as Nov 1878, and given that the twins were age 1 year in the 1880 census, 1878 would be the correct year.  Based on the 1880 census, Homer was born in 1872 or 3.

3a.  1910 Census Index/Images (online at Genealogy.com):  can't find Homer, but he and his wife are apparently separated (see next source).

3b.  1910 Census Index/Images (online at Genealogy.com, Image #63 of 126):  1701 Whitaker Street, Savannah City (Ward 2), Chatham Co., GA, Roll 178 (Book 1), p. 81A, SN 3A, SD 1, ED 56, enumerated 16 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

10

11

12

13

14

17

18

23

24

25

26

28

*

1701

59

63

Cutter Mildred

Head

M

W

60

Wd

4

4

VA

VA

VA

Eng

None

Y

Y

R

H

Hopkins Ellen M

Dau

F

W

30

Wd

2

2

GA

VA

VA

Eng

None

Y

Y

_______ Ruby C

G-Dau

F

W

10

S

GA

PA

GA

Eng

None

Y

Y

Y

_______ Ellen M

G-Dau

F

W

7

S

GA

PA

GA

Eng

None

Y

Y

Y

*Whitaker Street

4a.  1920 Census Index/Images (online at Ancestry.com, Image #5 of 29):  314 Harrison Avenue, Oklahoma City (Ward 2, Precinct 4), Oklahoma Co., OK, Roll T625_1474, p. 88A, SN 3A, SD 5, ED 130, enumerated 3/5 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

*

314

46

54

Hopkins Homer A

Head

R

M

W

47

M

Y

Y

PA

PA

PA

Y

Traveling Salesman

Hardware Co

W

_______ Kate

Wife

F

W

32

M

Y

Y

TX

AL

TN

Y

None

_______ Katherine

Dau

F

W

3 2/12

S

TX

PA

TX

None

*Harrison Avenue

4b.  1920 Census Index/Images (online at Ancestry.com, Image #22 of 34):  117 Clay St., Bainbridge City, Militia District 513, Decatur Co., GA, Roll T625_248 (Book 1), p. 52B, SN 11B, SD 2, ED 34, enumerated 9/10 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	8	9	10	11	12	17	18	19	21	23	25	26
*	117	213	237	Cutter M M	Head	O	F	M	W	72	Wd	Y	Y	VA	VA	VA	Y	None
				Hopkins Ellen	Dau			F	W	40	D	Y	Y	GA	KY	VA	Y	None
*Clay St

Ellen is not indexed; I found her only by finding her mother.

4c.  1920 Census Index/Images (online at Ancestry.com, Image #34 of 40):  301 Bryan Avenue, East Point Town, East Point (District 1332), Fulton Co., GA, p. 37B, SN 17B, SD 5, ED 162, enumerated 20 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

8

9

10

11

12

16

17

18

19

21

23

25

26

27

28

*

301

319

389

Kadel Clarence R

Head

O

M

M

W

32

M

Y

Y

GA

GA

US

Y

Engineer

R R Yards

W

_____ Flarence?

Wife

F

W

38

M

Y

Y

GA

GA

GA

Y

None

[their four children]

Hopkins Ruby

Cousin

F

W

20

S

Y

Y

Y

GA

GA

GA

Y

File Clerk

Seed House

W

*Bryan Avenue

5.  1930 Census Index/Images (online at Ancestry.com, Image #25 of 39):  1141 West 32nd Street, Oklahoma City (Ward 1, Block 1100), Oklahoma Co., OK, Roll T626_1918, p. 202A, SN 13A, ED 55-33, SD 5, enumerated 15/16 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

10

11

12

13

14

15

16

17

18

19

20

24

25

26

27

28

30

*

1141

303

318

Hopkins Homer

Head

O

7000

N

M

W

58

M

21

N

Y

PA

PA

PA

Y

Er? Trauder?

Bonds

W

Y

N

_______ Kate

Wife

F

W

45

M

27

N

Y

TX

VA

TN

Y

None

_______ Katherine

Dau

F

W

13

S

Y

Y

TX

PA

TX

Y

None

Zanberg Milton

lodger

M

W

24

M

23

N

Y

MI

US

US

Y

Salesman

Auto Springs

W

Y

N

Zanberg Dorathy

lodger

F

W

23

M

22

N

Y

OK

WI

PA

Y

Stenographer

Radiator Co

W

Y

*West 32nd Street

If Kate's first marriage was to Homer, then they were married 1912/3.  Can't find Ellen.  Ellen's mother is boarding with the HAYWOOD family. 

6.  Numerous sites on the web.  One site says parents separated when Miriam was 14 (ca. 1916) and mother moved to Barre, VT, but census indicates they were separated by 1910 and that Homer remarried by 1912/3.  If Ellen went to VT, she came back because she's in Georgia in the 1910 and 1920 censuses.