1.  Anon.  1966.  Marriage Index:  Ohio, 1789-1850.  Liahona Research, Orem, UT (Broderbund CD-400):

Stroup, John

Yancer, Polly

9 Jan 1849

Trumbull Co.

2.  1850 Census Images (online at Ancestry.com; Image #22 of 25):  Dist. No. 143, Southington, Trumbull Co., OH, p. 231A, 334/337, enumerated 30 Jul 1850 (extracted by Diana Gale Matthiesen):¤•

John Stroup	35	M	Farmer	850	Pennsylvania
Polly Stroup	19	F			Do
George Stroup	3/12	M			Trumbull County O.

3.  1860 Census Images (online at Ancestry.com; Image #11 of 23):  Southington P.O., Southington Twp., Trumbull Co., OH, p. 124B, PN 76, 614/592, enumerated 30 Jun 1860, official enumeration date 1 Jun 1860 (extracted by Diana Gale Matthiesen):¤•

John Stroup	47	M		Farmer	1200	450	Pennsylvania
Polly    "	29	F					"
George   "	10	M					Ohio
Edward   "	8	M					"
P.A.     "	6	F					"
Freemont "	4/12	M					"
Abraham Yanser	22	M		Farm Laborer			"

Abraham is probably Polly's brother.  Listed next to John's brother, Jeremiah STROUP, who is listed next to John's brother, Elias STROUP. 

4.  1870 Census Images (online at Ancestry.com; Image #14 of 21):  Southington P.O., Southington Twp., Trumbull Co., OH, Roll M593_1272, p. 352B, PN 14, 120 118, enumerated 19 Aug 1870, official enumeration date 1 Jun 1870 (extracted by Diana Gale Matthiesen):¤•

Stroup John	56	M	W	Farmer	2000	300	Penna
Polly	40	F	W	Keeps House			Do
George A	20	M	W	At Home			Ohio
Edward	18	M	W	Do			Do
Priscilla	16	F	W	Do			Do
Freeman A	10	M	W	Sch			Do

Listed four households from John's brother, Jeremiah STROUP, who is listed next to Catharine STROUP, widow of John's brother, Elias STROUP. 

5.  Will of Peter Straub, in which he names all of his siblings (courtesy of Rosemary Grayson).

6.  Research by Alexa Conover, Louise Varisco, and Audrey Lehman (courtesy of Rosemary Grayson).

7.  Minutes from The Stroup Reunion Book (courtesy of Rosemary Grayson).