1.  LDS.  Family Search: Internet Genealogy Service: International Genealogical Index (IGI).

Jonas ELEY Spouse: Euphen WILSON Marriage: 12 Oct 1810, Washington, Pennsylvania Source: [patron submission]

Jonas ELY Spouse:  Effie WILSON Marriage: 12 Oct 1810, Greene, Pennsylvania Source: patron submission

2.  Census Index:  U.S. Selected Counties, 1810 (Broderbund CD-313):  not found.

3.  1820 Census Index and Digital Images (online at Ancestry.com; Image #2 of 5; extracted by Diana Gale Matthiesen):

1820

PA

Washington Co.

Buffalo Twp.

p. 150/629

J Elly

220010-22001-0-100

These data indicate:

No. & Sex	Age Class	Therefore Born	Individuals Inferred
2 males	9 or under	1810-1820	= George (b. 1818) = John (b. 1815)
2 males	10-15	1804-1810	= James (b. 1811) = Son A
1 male	26-44	1775-1794	= Jonas (b. 1787)
2 females	9 or under	1810-1820	= Nancy (b. 1820) = Elizabeth (b. 1813)
2 females	10-15	1804-1810	= Daughter B = Daughter A
0 female	26-44	1775-1794	= Effie (b. 1788)
1 female	45 or over	in or bef. 1775	= -----
1	person engaged in agriculture

James was tallied in the age class and so was Effie, yet there seems little doubt this is our couple.  Listed one line above an "M Elly," who is listed one line above another "M Elly," who is listed one line above "Marten Horn," who is listed one line above "H Horn."  Marten HORN is the son of Hardtman HORN, four of whose children married ELYs. 

4.  1830 Census Index and Digital Images (online at Ancestry.com; Image #15 of 16; extracted by Diana Gale Matthiesen):

1830

PA

Washington Co.

Canton Twp.

p. 202B

Jonas Ely

112 110 100 - 010 100 100

These data indicate:

No. & Sex	Age Class	Therefore Born	Individuals Inferred
1 male	4 or under	1825-1830	= Caleb (b. 1829)
1 male	5-9	1820-1825	= Jonas (b. 1823)
2 males	10-14	1815-1820	= George (b. 1818) = John (b. 1815)
1 male	15-19	1810-1815	= James (b. 1811)
1 male	20-29	1800-1810	= Son A
1 male	40-49	1780-1790	= Jonas (b. 1787)
1 female	5-9	1820-1825	= Nancy (b. 1820)
1 female	15-19	1810-1815	= Elizabeth (b. 1813)
1 female	40-49	1780-1790	= Effie (b. 1788)

5.  1840 Census Index and Digital Images (online at Ancestry.com; Image #13-14 of 14; extracted by Diana Gale Matthiesen):

1840

PA

Washington Co.

Canton Twp.

pp. 73B-74A

Jonas Eley

001 120 010 - 000 100 010

0300000

These data indicate:

No. & Sex	Age Class	Therefore Born	Individuals Inferred
1 male	10-14	1825-1830	= Caleb (b. 1829)
1 male	15-19	1820-1825	= Jonas (b. 1823)
2 males	20-29	1810-1820	= George (b. 1818) = John (b. 1815)
1 male	50-59	1780-1790	= Jonas (b. 1787)
1 female	15-19	1820-1825	= Nancy (b. 1820)
1 female	50-59	1780-1790	= Effie (b. 1788)
3	persons engaged in agriculture

Listed four lines down from son, James ELY. 

6.  Census Microfilm Records:  Pennsylvania, 1850 (Broderbund CD-305; Disk 5).  Franklin Twp., Greene Co., PA, p. 254, 99/100, enumerated 6 Aug 1850 (extracted by Diana Gale Matthiesen):

Jonas Ely	62	M	Farmer	7000	Pa
Euphen "	62	F			"
John   "	35	M	"		"
Calib  "	21	M	"		"

Living next door to their son, Jonas ELY, Jr.  These are the only ELYs in Greene Co. 

7.  1860 Census Images (online at Ancestry.com; Image #176 of 629):  Waynesburgh P.O., Franklin Twp., Greene Co., PA, p. 407, PN 181, 1276/1309, enumerated 15 Aug 1860 (extracted by Diana Gale Matthiesen):

Jonas Elee, Sr	72	M		Farmer	19,000	6,000	Pa
Euphene "	71	F					Pa	blind
Caleb   "	31	M		Do		500	Pa

Living next door to son, Jonas ELY, Jr.  The only other ELY in Greene Co. is their son, George ELY, in Whiteley Twp.  Listed seven households below their daughter, Nancy (ELY) THROCKMORTON.  The fact that Waynesburgh was their Post Office doesn't mean they lived in Waynesburgh.  These were farmers who lived out in the country, in the days before there was rural mail delivery.  To get their mail, they had to drive/ride into town.  They got their mail in Waynesburgh; they lived in Franklin Twp. 

8.  Anon.  1893.  Commemorative Biographical Record of Washington County, Pennsylvania.  J.H. Beers & Co., Chicago.  On p. 213 (for full excerpt, see grandson Jonas's page): 

JONAS ELY... is a native of Greene County, Penna, born March 2, 1853...  Jonas Ely, grandfather of our subject, came to Washington County from Berks County, Penna, when a young man and followed farming and stock raising in Franklin Township; he married Miss Euphen Wilson, and they both died in Greene County, same state.

9.  LDS.  Family Search: Internet Genealogy Service:  AF - Ancestral File (online at FamilySearch.org).

10.  WorldConnect / Ancestry World Trees (online at RootsWeb.com/Ancestry.com).