— born in the City & County of San Francisco, CA:
5.  Robert William STRAUB, b. 6 May 1920

1.  Marriage Record:

2.  1910

3.  1920 Census Index/Images (online at Ancestry.com, Image #24 of 41):  500 11th Ave., San Francisco (Assembly Dist 28, Precinct 40), San Francisco Co., CA, Roll T625_141, p. B, SN 12B, SD 4, ED 293, enumerated 13 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

*

500

274

295

Straub Thomas J

Head

O

M

M

W

41

M

Y

Y

KS

IL

IL

Y

Attorney

Gas-Electric Co

W

______ Mary E?

Wife

F

W

38

M

Y

Y

KS

IN

IN

Y

none

______ Thomas J

Son

M

W

8

S

Y

CA

KS

KS

none

______ Frank H

Son

M

W

5

S

CA

KS

KS

none

______ Jean

Dau

F

W

3

S

CA

KS

KS

none

______ James

Son

M

W

1 5/12

S

CA

KS

KS

none

*11th Ave

4.  1930 Census Index/Images (online at Ancestry.com, Image #8 of 28):  San Antonio Road, Fremont Twp., Santa Clara Co., CA, Roll 219, p. 74B, SN 4B, ED 43-11, 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

3

4

5

6

7

9

10

11

12

13

14

15

16

17

18

19

20

24

25

26

27

28

30

31

32

*

111

111

Straub Thomas J

Head

O

R

Y

M

W

51

M

31

N

Y

KS

WI

WI

Y

Attorney

Electric Co

W

Y

Y

Sp

100

______ Mary D?

Wife

F

W

48

M

28

N

Y

KS

IN

MS

Y

None

______ Thomas J

Son

M

W

18

S

Y

Y

CA

KS

KS

Y

None

______ Frank H

Son

M

W

15

S

Y

Y

CA

KS

KS

Y

None

______ Jean

Dau

F

W

13

S

Y

Y

CA

KS

KS

Y

None

______ James ?

Son

M

W

11

S

Y

Y

CA

KS

KS

Y

None

______ Robert

Son

M

W

9

S

Y

CA

KS

KS

Y

None

______ Bernice C

Niece

F

W

26

S

N

Y

OR

KS

IN

Y

None

W

Y

*San Antonio Road

The number "100" in the last column cannot be the Farm Schedule Number because 1) he's not a farmer, and 2) the Farm Schedule Number above him is 35 and the one below him is 36 — so "100" would not be in sequence.  I have no idea what the number represents.