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

Henry Edwards Huntington Birth: 27 Feb 1850, Oneonta, Otsego, New York Death: 1927, San Marino, Los Angeles, California Marriage: 16 Jul 1913, Paris, Seine, France Spouse: Arabella Duval Yarrington Worsham Birth: 01 Jun 1852, Union Springs, Calhoun, Alabama Death: 1924, New York, New York, New York Burial: 1924, San Marino, Los Angeles, California Source: patron submission

There's no sign, whatsoever, that Arabella's parents were ever in Alabama.  They were married in Richmond, VA, in 1839, and were living in Richmond in the 1840, 1850, and 1860 censuses.  In the 1860 and 1870 censuses, Arabella's birthplace and that of all her siblings is given as Virginia.  It wasn't until the 1880 census that Arabella began saying she was born in Alabama.

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

Census Place: Oneonta, Otsego, New York
Source: FHL Film #1254916; NARA Film #T9-0916; Pg 301A
	Relation	Sex	Marr	Race	Age	Birthplace	Occupation	Fa	Mo
Henry E. HUNTINGTON	Self	M	M	W	30	NY	Real Estate Agt.	CT	NY
Mary A. HUNTINGTON	Wife	F	M	W	28	CT	Keeping House	CT	CT
Howard E. HUNTINGTON	Son	M	S	W	4	WV		NY	CT
Clara L. HUNTINGTON	Dau	F	S	W	2	NY		NY	CT
Elizabeth V. HUNTINGTON	Dau	F	S	W	3M	NY		NY	CT
Ella RURY	Other	F	S	W	26	NY	Servant	NY	NY

3.  1890 Census:  the 1890 Census Population Schedules were destroyed.

4.  1900 Census Index/Images (online at Genealogy.com; Image #269 of 374):  2840 Jackson Street (41st Assembly Dist.), San Francisco, San Francisco Co., CA, Roll 106 (Book 1), p. 236B, SN 7, SD 1, ED 237, enumerated 6 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

10

11

12

13

14

15

19

20

21

22

23

24

25

26

27

103

107

Huntington Henry E

Head

W

M

Feb 1850

50

M

30

NY

CT

CT

railroad president

0

Y

Y

Y

O

F

H

__________ Mary

Wife

W

F

Apr 1852

48

M

30

4

4

CT

CT

CT

Y

Y

Y

__________ Howard E

Son

W

M

Feb 1876

24

S

WV

NY

CT

student

8

Y

Y

Y

__________ Clara

Dau

W

F

Feb 1878

22

S

NY

NY

CT

Y

Y

Y

__________ Elizabeth

Dau

W

F

Feb 1880

20

S

NY

NY

CT

Y

Y

Y

__________ Marion

Dau

W

F

Sept 1883

16

S

NY

NY

CT

at school

9

Y

Y

Y

Ryan Agnes

Servant

W

F

June 1872

29

S

CA

Ire

Ire

seamstress

0

Y

Y

Y

Conlin Mary

Servant

W

F

Oct 1873

26

S

CA

Ire

Ire

seamstress

0

Y

Y

Y

5.  1910

6.  1920 Census Index/Images (online at Ancestry.com; Image #12 of 12):  Huntington Drive, San Marino City, San Gabriel Twp., Los Angeles Co., CA, Roll T625_118 (Book 2), p. 35B, SN 6B, SD 8, ED 583, enumerated 14-16 Jan 1920, official enumeration date 1 Jan 1920 (extracted by Diana Gale Matthiesen):

1920:  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	17	18	19	21	23	25	26	27	28
*	X	162	164	Huntington Henry Edward	Head	O	F	M	W	69	M	Y	Y	NY	CT	NY	Y	director	Railway	Em
				__________ Arabella Duvall	Wife			F	W	59	M	Y	Y	AL	MD	VA	Y	None
*Huntington Drive

7.  Nelson Osgood Rhoades, ed.  1912.  Colonial Families of the United States of America.  Vol. VII.  Grafton Press, NY (George Norbury MacKenzie edited the first six volumes; republ. 1966/1995 by Genealogical Pub. Co., Baltimore, MD; online at GenealogyLibrary.com).  See biographical sketch of our subject. 

8.  Rockwell D. Hunt, ed.  1932.  California and Californians.  Vol. 3.  Lewis Publ., Chicago (online at Ancestry.com).  See biographical sketch of our subject.