— born in Lincoln Co., WV:
  4.  Andrew L. SIAS, b. 1868
  5.  Rebecca E. SIAS, b. 1870
  6.  Martha "Marthy" SIAS, b. 1871/2
  7.  Thomas A. SIAS, b. 1873/4
  8.  Charlotta F. SIAS, b. 1875/6
  9.  Cetavy E. SIAS, b. 1877/8
10.  Louisa SIAS, b. 1878/9
11.  James B. SIAS, b. Sep 1884; 
12.  Rosie A. SIAS, b. 21 Feb 1890

1.  Julia Wintz.  1975.  Kanawha County Marriages, January 1, 1792, to December 31, 1869.  McClain Printing Co., Parsons, WV (the introduction by the compiler is dated 1933; online at GenealogyLibrary.com).  On p. 154:

Sias, James W., and Louisa Hunter, Mar. 27, 1862.

2.  1870 Census Images (online at Ancestry.com; Image #72-73 of 136):  Griffithville P.O., Jefferson Twp., Lincoln Co., WV, pp. 455B-456A, PN 2-3, 15/15, enumerated 1 Jul 1870, official enumeration date 1 Jun 1870 (extracted by Diana Gale Matthiesen):

Sias James	32	M	W	Farmer	300	110	Va
____ Louisa	23	F	W	Keeps House			Va
____ John W	7	M	W	at Home			Va
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____ William C A	5	M	W	at Home			Virginia
____ Kora Belle	3	F	W	at Home			Va
____ Andrew L	1	M	W	at Home			Va

Apparently our subjects haven't accepted the fact "their" VA is now WV.  Also in the county:  Andrew SIAS, William A. SIAS, and "Hervy C." SIAS.  Several "ELKINS" in neighborhood who are probably "ADKINS."

3.  1880 United States Census and National Index (LDS Family History Resource File: CD-ROM Library):

Census Place: Laurel Hill, Lincoln, West Virginia
Source: FHL Film 1255406; NARA Film T9-1406; Pg 188A
	Relation	Sex	Marr	Race	Age	Birthplace	Occupation	Fa	Mo
James SEIAS	Self	M	M	W	44	WV	Farmer	WV	WV
Louisa SEIAS	Wife	F	M	W	34	WV	Keeping House	WV	WV
John W. SEIAS	Son	M	S	W	17	WV	Works On Farm	WV	WV
William SEIAS	Son	M	S	W	15	WV	Works On Farm	WV	WV
Corabell SEIAS	Dau	F	S	W	13	WV	At Home	WV	WV
Andrew L. SEIAS	Son	M	S	W	12	WV	Works On Farm	WV	WV
Rebeca E. SEIAS	Dau	F	S	W	10	WV	At Home	WV	WV
Marthy SEIAS	Dau	F	S	W	8	WV		WV	WV
Thomas A. SEIAS	Son	M	S	W	6	WV		WV	WV
Charlotta F. SEIAS	Dau	F	S	W	4	WV		WV	WV
Cetavy E. SEIAS	Dau	F	S	W	2	WV		WV	WV
Louisa SEIAS	Dau	F	S	W	1	WV		WV	WV
Mary E. DAVIS	Other	F	M	W	19	WV	Servant	WV	WV
James F. DAVIS	Other	M	S	W	1	WV		WV	WV

4.  1890 Census:  the 1890 census population schedules were destroyed.

5.  1900 Census Index/Microfilm (online at Genealogy.com):  Laurel Hill Dist., Lincoln Co., WV, p. 283A, SN 17, SD 4, ED 45, enumerated 11 Jul 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

19

21

22

23

24

25

26

27

28

262

262

Sias James W

Head

W

M

Sept 1835

64

M

39

WV

WV

WV

Farmer

Y

Y

Y

O

F

F

221

____ Louisa

Wife

W

F

Apr 1848

52

M

39

12

11

WV

WV

WV

N

N

Y

____ James B

Son

W

M

Sept 1884

15

S

WV

WV

WV

Farm Laborer

Y

Y

Y

____ Rosa A

Daughter

W

F

Feb 1890

10

S

WV

WV

WV

At School

4½

Y

Y

Y

Living three doors from William SIAS.