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

Elisha M WALL Wife: Catrina or Caty MACK Birth: 04 Aug 1799, Wawarsing, Ulster, New York Death: 05 Mar 1871 Source: patron submission

2.  1830 Census Index/Images (online at Ancestry.com, Image #45 of 56; extracted by Diana Gale Matthiesen):

1830

NY

Monroe Co.

Penfield

Roll 94

p. 348

Ln. 4

Elijah Wall

210 010 - 000 001

These data indicate:

No. & Sex	Age Class	Therefore Born	Individuals Inferred
2 males	4 or under	1825-1830	= Son B = William (b. 1825/6)
1 male	5-9	1820-1825	= Son A
1 male	20-29	1800-1810	= Elisha (b. 1801)
1 female	30-39	1790-1800	= Lois

3.  1840 Census Index/Images (online at Ancestry.com, Image #15-16 of 22; extracted by Diana Gale Matthiesen):

1840

NY

Wayne Co.

Ontario

Roll 350

pp. 203A-203B/400-401

Ln. 11

Elisha M Wall

102 101 - 011 001

0100000

These data indicate:

No. & Sex	Age Class	Therefore Born	Individuals Inferred
1 male	4 or under	1835-1840	= Ebenezer (b. 1837/8)
2 males	10-14	1825-1830	= Son B = William (b. 1825/6)
1 male	15-19	1820-1825	= Son A
1 male	30-39	1800-1810	= Elisha (b. 1801)
1 female	5-9	1830-1835	= Lois (b. 1833/4)
1 female	10-14	1825-1830	= Daughter A
1 female	30-39	1800-1810	= Catharine (b. 1799)
1	person employed in agriculture

4.  1850 Census Every-Name-Index/Images (online at Ancestry.com, Image #15 of 54):  Town Ontario, Wayne Co., NY, Roll M432_612, p. 109A, 111/111, enumerated 15 Aug 1850, official enumeration date 1 Jun 1850 (extracted by Diana Gale Matthiesen):

Elisha M Wall	48	M		Farmer	3000	VT
Catharine "	50	F				NY
William   "	24	M		Carpenter		"
Lois      "	14	F				"
Ebinezer  "	12	M				"
Alonzo    "	10	M				"
Abram     "	3	M				"
Samuel    "	19	M		Labourer		"

I find it hard to believe Catharine bore a son at age 47, but if he weren't their son, he should have been listed after Samuel.  Is he adopted?  Samuel's being listed last and out of chronological order indicates he is not their son, which is supported by there being no son in this age class with them in the 1840 census.  One could interpret Samuel being listed last as him being Elisha's son from a former marriage, but we know William is such, and he was not listed after Catharine's children.

5.  1860 Census Every-Name-Index/Images (online at Ancestry.com, Image #46 of 59):  Ontario P.O., Ontario, Wayne Co., NY, Roll M653_876, p. 636, PN 46, 366/358, enumerated 10 Jul 1860, official enumeration date 1 Jun 1860 (extracted by Diana Gale Matthiesen):

Elisha Wall	58	M		Farmer	2700	848	Vermont
Catharine "	60	F					New York
Ebenezer  "	21	M					do
Alonzo    "	18	M					do
Abram     "	14	M					do

6.  1870 Census Every-Name-Index/Images (online at Ancestry.com, Image #4 of 58 — our subject is indexed "Harkins"):  Webster P.O., Ontario Co., Wayne Co., NY, Roll M593_1112, p. 318B, PN 4, 25/25, enumerated 20 Jun 1870, official enumeration date 1 Jun 1870 (extracted by Diana Gale Matthiesen):

Wall Elisha M	68	M	W	Farmer	5000	1500	Vermont
____ Katie	70	F	W	Keeping House			New York
____ Ebenezer	32	M	W	Farmer			New York
Haskins Warren	37	M	W	Farm Laborer			New York
_______ Louis	35	F	W	Keeping House			New York
_______ Lillie	7	F	W	At School			New York
_______ Harriet	5	F	W	At School			New York

"Louis" should be "Lois" — she's their married daughter, and Warren HASKINS/HOSKINS is their son-in-law.

7.  1880 Census Every-Name-Index/Images (online at Ancestry.com):  Elisha WALL (æ 78, VT/VT/VT) is living in Ontario, Wayne Co., NY (p. 304B), with an assortment of roomers and hired help, none of whom appear to be kin.

8.  1890 Census:  the 1890 Census Population Schedules were destroyed.

9.  Messages posted to the Wall Family Genealogy Forum (online at GenForum.com).