— born in Greenwood Twp., either in Juniata Co. or Perry Co., PA:
2.  William B. STROUP, b. 1851/2
3.  Mary L. STROUP, b. 1852/3
4.  (Child) STROUP; died young
5.  Simon Peter STROUP, b. 1864/5
6.  John Henry STROUP, b. 1868/9

— born in Greenwood Twp., Perry Co., PA:
7.  George W. STROUP, b. 1863/4
8.  Sarah M. STROUP, b. 1865/6
9.  Ida E. STROUP, b. 1868/9

1.  Marriage Record:

2.  1850 Census Every-Name-Index/Images (online at Ancestry.com, Image #17 of 38):  Greenwood Twp., Juniata Co., PA, Roll M432_786, p. 310B, 2021/2053, enumerated 2 Nov 1850:  Greenwood Twp., Juniata Co., PA, p. 310, 2023/2053, enumerated  2 Nov 1850 (extracted by Diana Gale Matthiesen):¤•

Cath Stroup	52	F			Penna
Peter Stroup	24	M		Black Smith	"
Catharine Stroup	21	F			"
Joannah Stroup	2	F			"
Thos Hart	19	M		Black Smith	"

The elder Catharine is Peter's mother.  The younger Catharine either lied about her age the rest of her life or it's wrong here.  Ditto Johanna.  Listed between two of Peter's brothers:  Samuel STROUP and Nathan STROUP.

3.  1860 Census Every-Name-Index/Images (online at Ancestry.com, Image #13 of 24 — indexed "Stroube"):  Montgomery's Ferry P.O., Greenwood Twp., Perry Co., PA, Roll M653_1150, p. 449, PN 95, 677/677, enumerated 26 Jun 1860, official enumeration date 1 Jun 1860 (extracted by Diana Gale Matthiesen):¤•

Peter Straube	35	M		Black Smith		300	Penna
Catharine	28	F					"
Joanna	10	F					"
William B	8	M					"
Mary	7	F					"
Simon Peter	5	M					"
Jno Henry	1	M					"

4a.  1870 Census Every-Name-Index/Images (online at Ancestry.com, Image #8 of 28 — indexed "Straup"):  Millerstown P.O., Greenwood Twp., Perry Co., PA, Roll M593_1386, p. 58B, PN 8, 51/51, enumerated 17 Aug 1870, official enumeration date 1 Jun 1870 (extracted by Diana Gale Matthiesen):¤•

Stroup Peter	44	M	W	Blacksmith			Penna
______ Catharine	38	F	W	Keeping House			"
______ Joannah	20	F	W				"
______ William B	18	M	W	Farm Laborer		300	"
______ Mary L	16	F	W				"
______ Simon	14	M	W				"
______ George W	6	M	W				"
______ Sarah M	4	F	W				"
______ Ida E	1	F	W				"

4b.  1870 Census Every-Name-Index/Images (online at Ancestry.com, Image #7 of 28):  Millerstown P.O., Greenwood Twp., Perry Co., PA, Roll M5593_1386, p. 58A, PN 7, 43/43, enumerated 16 Aug 1870, official enumeration date 1 Jun 1870 (extracted by Diana Gale Matthiesen):¤

Bashore John R	29	M	W	Farmer	12000	2000	Penna
_______ Annie	26	F	W	Keeping House			"
Stroup William	18	M	W	Domestic Servant			"
______ Mary	16	F	W	"        "			"

William and Mary seem to have gotten themselves enumerated twice, once here with their employer and once (see above) with their parents.

5.  1880 Census Every-Name-Index/Images (online at Ancestry.com, Image #2 of 12):  Greenwood Twp., Juniata Co., PA, Roll T9_1137, p. 353B, PN 2, SD 7, ED 134, enumerated 1 Jun 1880, official enumeration date 1 Jun 1880 (extracted by Diana Gale Matthiesen):¤•

1880:  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	8	9	11	13	21	24	25	26
11	12	Stroup Catharine	W	F	49			/	Keeping house		Penna	Penna	Penna
		______ Ida E	W	F	11	Dau	/		At home	/	Penna	Penna	Penna
		Fisher Levi R	W	M	20	Boarder	/		Farmer		Penna	Penna	Penna

6.  1890 Census:  the 1890 Census Population Schedules were destroyed.

7.  1900 Census Every-Name-Index/Images (online at Ancestry.com, Image #12 of 34 — indexed "Catherin"):  Millersburg Borough, Dauphin Co., PA, Roll T623_1403 (Book 1), p. 255B, SN 6, SD 9, ED 92, enumerated 7 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	22	23	24	25	27
154	157	Stroup Catharin	Head	W	F	Jan 1831	69	M	Wd	9	7	PA	PA	PA	Y	Y	Y	R	H

8.  1910 Census Index/Images (online at Ancestry.com, Image #31 of 49):  North Street, Millersburg Borough, Dauphin Co., PA, Roll T624_1337 (Part 2), p. 177A, SN 16A, SD 14, ED 109, enumerated 2 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).
1	2	3	4	5	6	7	8	10	11	12	13	14	17	18	23	24	26	28
385	396	Stroup Catharine	Head	F	W	78	Wd	9	7	PA	PA	PA	Eng	Own Income	Y	N	R	H

9.  1920 Census Index/Images (online at Ancestry.com):  not found.