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

Stroup, Eli

Shoup, Catharine

6 Aug 1846

Mahoning Co.

2.  1850 Census Images (online at Ancestry.com; Image #262 of 747):  Dist. No. 143, Southington, Trumbull Co., OH, p. 231A, 332/335, enumerated 30 Jul 1850, official enumeration date 1 Jun 1850 (extracted by Diana Gale Matthiesen):¤•

Eli Stroup	32	M	Farmer	1300	Pennsylvania
Catherine Stroup	23	F			Trumbull County Ohio
Franklin E. Stroup	2	M			"
Lucinda Stroup	1	F			"
Philip Young	14	M			Germany

3.  1860 Census Images (online at Ancestry.com; Image #11 of 23):  Southington P.O., Southington Twp., Trumbull Co., OH, p. 124B, PN 76, 612/590, enumerated 30 Jun 1860, official enumeration date 1 Jun 1860 (extracted by Diana Gale Matthiesen):¤•

Elias Stroup	42	M		Farmer	2400	400	Pennsylvania
Catharine "	32	F					Ohio
Franklin  "	12	M					"
Lucinda   "	11	F					"
Mary      "	9	F					"
Levina    "	7	F					"
Melvina   "	7	F					"
Lewis     "	4	M					"

Listed next door to Elias's brother, Jeremiah STROUP, who is living next door to Elias's brother, John STROUP. 

4.  1870 Census Images (online at Ancestry.com; Image #14 of 21):  Southington P.O., Southington Twp., Trumbull Co., OH, Roll 1272, p. 352A, PN 14, 126/123, enumerated 19 Aug 1870, official enumeration date 1 Jun 1870 (extracted by Diana Gale Matthiesen):¤•

Stroup Catharine	43	F	W	Keeps House	3500	700	Ohio
Lucinda	21	F	W	At Home			Do
Malvina	17	F	W	Do			Do
Lewis D	14	M	W	Do			Do

5.  1880 Census (indexed at FamilySearch.org; page image online at Ancestry.com, Image #18 of 22):  Southington, Trumbull Co., OH, Roll 1070 (Book 1), p. 316B, PN 18, SD 8, ED 204, enumerated 21 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	24	25	26
160	163	Stroup Catherine	W	F	53			/	Keeping House	OH		PA
		______ Lucinda	W	F	31	Dau	/		At home	OH	PA	OH
		______ Lewis	W	M	24	Son	/		Farmer	OH	PA	OH

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

7.  1900

8.  Will of Peter Straub, in which he names Elias as one of his siblings (courtesy of Rosemary Grayson).

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

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