One secondary source (a WorldConnect file) says our subjects were married 1 Jul 1916.  If so, then "Haroly" is either someone's child by a prior marriage or is adopted.

1.  Marriage Record:

2.  1920 Census Every-Name-Index/Images (online at Ancestry.com, Image #21 of 22):  Mountain Road, Lykens Twp., Dauphin Co., PA, Roll T625_1557, p. 263A, SN 11A, SD 12, Ed 120, enumerated 13/14 Feb 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

29

*

Fm

218

234

Straub Samuel H

Head

O

M

M

W

38

M

Y

Y

PA

PA

PA

Y

Farmer

General Fm

Em

154

______ Annie L

Wife

F

W

28

M

Y

Y

PA

PA

PA

Y

None

______ Haroly T

Son

M

W

8

S

Y

PA

PA

PA

None

______ Tobias

Hired

M

W

63

Wd

Y

Y

PA

PA

PA

Y

None

*Mountain Road

Tobias is Samuel's father.  Listed between Tobias's brother, George B. STRAUB, and Tobias's nephew, William M. STRAUB.

3.  1930 Census Every-Name-Index/Images (online at Ancestry.com, Image #8 of 22):  Lykens Twp., Dauphin Co., PA, Roll 2027, p. 221B, SN 4B, ED 22-77, SD 11, 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).
3	4	5	6	7	8	10	11	12	13	14	15	16	17	18	19	20	24	25	26	27	28	29	30	32
78	86	Stroub Harry S	Head	O	4000	Y	M	W	48	M		N	Y	PA	PA	PA	Y	Farmer	Farm	O	Y		N	43
		______ Annie L	Wife				F	W	35	M		N	Y	PA	PA	PA	Y	None
		______ Tobias	Father				M	W	71	Wd	22	N	Y	PA	PA	PA	Y	Laborer	Farm	W	N	52.??	N

"Haroly" not found, at least not in Pennsylvania and not with any certainty.

4.  World War I Selective Service System Draft Registration Cards, 1917-1918.  Microfilm Series M1509 (4277 rolls), National Archives and Records Administration, Washington, DC (card images and index online at Ancestry.com):

Roll | Serial No. | Order No:	1877945 | 2323 | 478
Name:	Samuel Harry Straub
Permanent Home Address:	RFD 1 Gratz Dauphin Pa
Age in Years | Date of Birth:	37 | Sept 11th 1881
Race:	White
U.S. Citizen:
Present Occupation:	Farmer
Employer's Name:	Self
Place of Employment:	RFD 1 Gratz Dauphin Pa
Nearest Relative: Name:	Mrs Samuel H Straub
Nearest Relative: Address:	FRD 1 Gratz Dauphin Pa
Signature:	Samuel Harry Straub
Height (tall, medium, short):	Short
Build (slender, medium, stout):	Stout
Color of Eyes | Color of Hair:	Brown | D. Brown
Physically Disabled:	No
Date of Registration:	Sept 10 1918
Draft Board:	Div. 3, Co. of Dauphin, State of Pa. Elizabethville, Pa.

5.  Public Member Trees (online at Ancestry.com).

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

7.  LDS.  Family Search: Internet Genealogy Service:  AF - Ancestral File (online at FamilySearch.org).