1a.  Marriage Index:  Indiana, 1851-1900 (Broderbund CD-243):  not found, but there are no Henry County marriage records on this CD.

1b.  Works Progress Administration, compiler.  1939. Henry County, Indiana, Index to Marriage Records, 1850-1920.  County Clerk's Office, New Castle, Henry Co., IN (online at Ancestry.com):

Peter Straub	Amanda Hoover	8 Mar 1859	Book CC2, Page 269
Charles Shaffer	Susan E Straub	22 Jul 1894	Book CC9, Page 251

Can't find Anna's marriage.

2.  1860 Census Images (online at Ancestry.com; Image #136 of 517 — mis-indexed "Shoup"):  Millville P.O., Liberty Twp., Henry Co., IN, p. 135, PN 135, 993/993, enumerated 18 Jul 1860, official enumeration date 1 Jun 1860 (extracted by Diana Gale Matthiesen):¤•

Peter Stroup	27	M		Farmer		175	Germany
Amanda   "	17	F					Ind

Living next door to Amanda's parents, Samuel & Elizabeth HOOVER.

3.  1870 Census Index/Images (online at Genealogy.com; Image #11-12 of 48):  Millville P.O., Liberty Twp., Henry Co., IN, Roll 323 (Book 1), pp. 186A-186B, PN 11-12, 91/93, enumerated 21 Jul 1870, official enumeration date 1 Jun 1870 (extracted by Diana Gale Matthiesen):¤•

Straub John P	47	M	W	Farmer	2300	700	Germany
______ Amanda	28	F	W	Keeping House			Indiana
[next page]
Straub Sarah C	3	F	W	At Home			Indiana
______ Emma	1	F	W	"   "			"

Living next door to Amanda's parents, Samuel & Elizabeth HOOVER.

4.  LDS.  Family Search: Census Records: 1880 United States (online at FamilySearch.org):¤•

Census Place: Liberty, Henry, Indiana
Source: FHL Film #1254284; NARA Film #T9-0284; Pg 192A
	Relation	Sex	Marr	Race	Age	Birthplace	Occupation	Fa	Mo
Peter STRAUB	Self	M	M	W	56	WURTENBERG GERM	Farmer	WURTENB	WURTENB
Amanda A. STRAUB	Wife	F	M	W	39	IN	Housekeeping	PA	PA
Sarah C. STRAUB	Dau	F	S	W	13	IN	At Home	WURTENBERG	IN
Susan E. STRAUB	Dau	F	S	W	10	IN		WURTENBERG	IN
Anna M. STRAUB	Dau	F	S	W	7	IN		WURTENBERG	IN

5.  1890 Census:  the 1890 Population Schedules were destroyed.

6.  1900 Census Index/Images (online at Genealogy.com; Image #4-5 of 29):  Liberty Twp., Henry Co., IN, Roll 377, pp. 171B-172A, SN 2-3, SD 6, ED 69, enumerated 5 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	11	12	13	14	15	22	23	24	25	26	27	28
47	47	Straub Amanda	Head	W	F	Mar 1841	59	Wd	4	3	IN	PA	PA	Y	Y	Y	O	F	F	24
[next page]
47	47	Straub Catharine	Dau	W	F	Aug 1866	33	S			IN	Ger	IN	Y	Y	Y

Listed two households from Amanda's sister, Sarah (HOOVER) GOTTFRIED.

7.  1910 Census Index/Images (online at Genealogy.com):  not found.

8.  1920 Census Index/Images (online at Ancestry.com):  not found. 

9.  Anon.  1902.  Biographical Memoirs of Henry County, Indiana… B.F. Bowen & Co., Logansport, IN (online at the Indiana Biographies web site; the original bio was one, relentless paragraph, so I have broken it into smaller paragraphs for improved readability; boldface added):

AMANDA A. STRAUB Possessing many attributes of noble womanhood and bearing well her part in life, the well-known and popular lady whose name introduces this article is worthy of mention in a biographical compendium of the nature of this work.  Amanda A. Straub, daughter of Samuel and Elizabeth (Dilling) Hoover, was born in Liberty Township, Henry County, Indiana, on the 26th day of March 1841. The Hoover family is of German extraction; the subject's great- grandfather came from the old country a great many years ago and settled in Blair County, Pennsylvania, where Samuel Hoover was born and reared.  On the mother's side is mingled the blood of German, Swiss and Dutch ancestry.  The Dillings were also early settlers of Blair County, and the two families lived in the same neighborhood, and the children for many years attended the same little German school. Samuel Hoover was born July 16, 1812, and on the 26th of March, 1834, married Elizabeth Dilling, whose birth occurred November 29, 1816.  In May 1837, Mr. Hoover and family came by wagon to Henry County, Indiana.  They were seven weeks in making the journey, which was a leisurely one and, from what can be learned, a most pleasant and agreeable experience. Mr. Hoover brought with him considerable means and, on his arrival, purchased land choosing for his home an admirably situated place in Section 20, Liberty Township.  He at once inaugurated a system of improvements, which by industry and well-directed energy were successfully carried out.  He was a hard worker and would frequently make the night resound with the echoes of his sturdy strokes as he felled the giant forest trees and cut them into the proper sections for rolling and burning.  His life was one of continuous toil, but he succeeded well and in due time became a prosperous farmer.  In early life he united with the church of God and later was licensed to preach by that body, a work to which he devoted considerable of his time and not frequently would he go long distances to fill his appointments.  He was a zealous Christian and by his God-fearing life as well as by his public ministry did much to counteract the prevailing evils of his day.  The death of this excellent man and sincere servant of the Most High occurred on the 25th day of February 1872; his widow is still living at the ripe old age of eighty-six years. Samuel and Elizabeth Hoover were the parents of three daughters, Nancy, deceased; Amanda A., of this review, and Sarah A., who married George Gootfried [Gottfried] and resides on a part of the old homestead. Amanda A. was reared on the home farm in Liberty township, attended the common schools during her childhood and youth and grew up to the full requirement that a woman as well as a man should earn her living by the honest sweat of her brow.  She early became familiar with the duties of household economy and the plain, simple domestic virtues, which are womanhood's most beautiful and attractive adornments, and proved a continued help to her parents as long as she remained with them. On the 6th day of March 1859, she became the wife of John P. Straub, an excellent young man who came to America some years before from his native land of Germany, where his birth occurred June 28, 1823.  By occupation Mr. Straub was a brick molder, but after his marriage he engaged in farming and so continued as long as he lived.  He was an industrious man, of frugal habits, honest and straightforward in all of his transactions and wherever known his word was as good as his written obligation.  He provided well for his family and as a citizen won the esteem of the people of the community, all of whom respected him for his many sterling qualities.  He was reared a Catholic, but later severed his connection with that body and united with the Church of God, in the faith of which he died November 8, 1882.  In politics he was a Democrat, but never took a very prominent part in political affairs, having been a quiet, unostentatious man, deeply attached to his family and with no desire whatever for distinction of any kind.  In his death his family lost a most loving and devoted husband and father, the community a kind and obliging neighbor and the county one of its excellent citizens. Mr. and Mrs. Straub's marriage bore fruit in the persons of four children, the oldest of whom, John Henry, born December 10 1864, died February 2, 1865, Sarah C., born August 29, 1866, was educated in the common schools and has never left the home fireside; Susan E., whose birth occurred on the 22nd day of June, 1869, is the wife of Charles Shafer; Anna M., wife of Oscar Adams, was born February 26, 1873. Since her husband's death, Mrs. Straub has lived on the farm and looked after its management.  She reared her children well early implanted in their minds and hearts a love of truth, virtue and right and the lives they now lead show that her efforts in their behalf have not been barren of most excellent results.  She is a kind neighbor, ever ready to minister to the wants of the poor and distressed and her gentle influence has always been exerted in the right direction.  The people of the community hold her in high esteem and she has shown herself worthy of every mark of favor and consideration conferred upon her.