— born in Salmon Falls Twp., El Dorado Co., CA:
3.  Uriah STROUP, b. 5 Mar 1864 
4.  Thomas D. STROUP, b. 14 Feb 1866
5.  [Frances] "Fannie" E. STROUP, b. 17 Mar 1870

1.  LDS.  Family Search: Internet Genealogy Service:  IGI - International Genealogical Index (online at FamilySearch.org).

Thomas Dixon Birth: 05 May 1788, Stanton, New Castle, Delaware Death: 16 May 1840 Spouse: Margaret Ocheltree Birth: 28 Feb 1798, Newport, New Castle, Delaware Death: 31 Jan 1840 Daughter: Mary Elizabeth Dixon Birth: 01 Sep 1828, Christiana, New Castle, Delaware Death: 13 Feb 1896 Source: patron submission

2a.  Where is Lewis?

2b.  1850 Census Index/Images (online at Ancestry.com; Image #207 of 337 — mis-indexed as being in Mill Creek Hundred and as being born in Texas):  Boarding House, Wilmington, New Castle Co., DE, Roll M432_53, p. 103A, 1505/1554, enumerated 26 Aug 1850, official enumeration date 1 Jun 1850 (extracted by Diana Gale Matthiesen):

James Gibson	28	M		Plumer		Pa
Hannah	25	F				"
Edward	3	M				"
Della	1	F				Virginia
John Brady	30	M		Lab		Ireland
Isaac Lobb	24	M		"		Del
Lydia	21	F				Pa
John Bouner	26	M		Spinner		Mass
Hannah Denton	40	F				England
Mary Dixon	20	F				Jersey
Ellen Finley	16	F				Pa
Rebecca Freman	18	F				Maryland

She's the only Mary or Elizabeth DIXON in Delaware who is close to being our subject's wife in age — and Mary's parents were both deceased in 1840.  The only sticking point is her birthplace, but as a boarder, she would undoubtedly not have been the informant for this record, so we can expect errors.

3.  1860 Census Every-Name-Index/Images (online at Ancestry.com, Image #367 of 518):  Salmon Falls P.O., Salmon Falls Twp., El Dorado Co., CA, Roll M653_58, p. 1039, PN 277, 2972/2972, enumerated 11 Aug 1860, official enumeration date 1 Jun 1860 (extracted by Diana Gale Matthiesen):¤•

L T Stromp	45	M		Farmer	500	500	Del
Mary    "	32	F					do
Harry    "	5	M					do
Catharine "	3	F					Cal
Geo Chase	30	M		Miner			Mass

4.  1870 Census Index/Images (online at Genealogy.com, Image #3 of 12):  Salmon Falls P.O., Salmon Falls Twp., El Dorado Co., CA, Roll 72 (Book 1), p. 130A, PN 3, 17/17, enumerated 8/9 Jun 1870, official enumeration date 1 Jun 1870 (extracted by Diana Gale Matthiesen):¤•

Stroup Lewis T	57	M	W	Vintner	2000	330	Delaware
______ Mary E	41	F	W	Keeping House			"
______ Harry	15	M	W				"
______ Catharine	12	F	W				California
______ Euriah	7	M	W				"
______ Thomas D	4	M	W				"
______ Fannie	3/12	F	W				"	Mch

5.  1880 Census (indexed at FamilySearch.org; page image online at Ancestry.com, Image #40 of 46):  Salmon Falls Twp., El Dorado Co., CA, Roll T9_65, p. 89D, PN 40, SD 2, ED 53, enumerated 22 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

10

13

21

24

25

26

418

418

Stroup Louis T

W

M

70

/

Farming

DE

DE

DE

______ Mary E

W

F

48

Wife

/

Keeping House

DE

DE

DE

______ Kate

W

F

22

Dau

/

At Home

CA

DE

DE

______ Uriah

W

M

16

Son

/

Works on farm

/

CA

DE

DE

______ Thos D

W

M

14

Son

/

Works on farm

/

CA

DE

DE

______ Fannie

W

F

10

Dau

/

At Home

/

CA

DE

DE

Hoagland Bell

W

F

16

Visitor

/

Visiting

/

CA

DE

NY

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

7.  Mormon Island Cemetery (online at the Sloughhouse Area Genealogical Society web site)).  Located on Green Valley Road, outside of Folsom, El Dorado Co., CA.

Plot, fenced: Mother. Mary E. Stroup. Died Feb. 13, 1896, aged 67 yrs 4 mos 13 days. Native of Christiana, Delaware Lewis T. Stroup. Died Aug. 21, 1881, aged 69 yrs 2 mos 5 days. Native of New Castle County, Dela... (Two markers broken with no initials and one with initials of LTS)

On Green Valley Road, a historical marker reads:

Mormon Island, Negro Hill, Salmon Falls, and Condemned Bar.  These historic mining towns, and other mining camps of the gold rush era, now inundated by Folsom Lake, are commemorated by the Mormon Island Memorial Cemetery nearby.  Here were reburied the pioneers whose graves were flooded, when the lake was formed by Folsom Dam.  Their memory is a reminder that what we are today we owe to those who came before us.  Registered Historical Landmarks No. 569, 570, 571 and 572…

8.  The 1892 Great Register Index, El Dorado County, California (online at the El Dorado County CAGenWeb site):

Stroup, Louis Tappin Stroup, Henry Stroup, Uriah...

Louis Tappin is obviously our subject and Uriah and "Henry," which is likely a mis-reading of "Harry," are his sons.

9.  Paolo Sioli.  1883.  Historical Souvenir of El Dorado County, California: with Illustrations and Biographical Sketches of its Prominent Men & Pioneers.  Self-published, Oakland, CA (biographies online at the El Dorado County CAGenWeb site).  On pp. 228-229:

El Dorado County Biographies:  Lewis T. Stroup The subject of this brief notice was a son of Uriah and Sarah Stroup.  The former was born in the State of Delaware and the latter in Pennsylvania.  Lewis first saw the light of day at Newcastle, on the banks of the proud old Delaware, July 16th, 1812.  His boyhood days were spent in attending public school and at work on his father's farm.  On the 17th day of November, 1853, he was united in marriage to Miss Mary Dixon, who was also a native of Delaware, and a daughter of Thomas D. and Margaret (nee Ocheltree.)  They resided at Christianna, Delaware, until 1856, when they sailed via Panama to California.  After a few months spent in San Francisco, Mr. Stroup located his family at Sacramento, and he began mining at Red Bank on the South Fork of the American river; after accumulating some funds, he purchased the place where his family now resides, and began laying the foundation for a future home.  The residence had been erected by Mr. Jenkins in 1854, but was in an entirely unfinished condition.  Very little was to be seen about the place attesting the labor of the husbandman.  A small vineyard was soon planted by Mr. Stroup, shade trees provided, and from time to time, as circumstances would permit, improvements were made, and it is now on of the most cheerful and pleasant homes in Salmon Falls township.  There are from 50 to 60 acres of land, about 30 of which is in vineyard. The family consists of five children, Harry, born May 13th, 1855, in Christiana, Delaware, and is in business at Plainfield, California. Katie was born August 24th, 1857, at Red Bank, California; Uriah was born March 5th, 1864; Thomas D., born February 14th, 1866; and Fannie E., born March 17th, 1870.  Mr. Stroup died September 21st, 1881, having attained his three score years and ten; was an Odd Fellow, and a man much esteemed as a generous, good man, a fond parent and kind husband, a friend to all and respected by all.

His tombstone apparently says he died in August, not September.