1.  Census Microfilm Records:  Pennsylvania, 1850 (Broderbund CD-305):  Wayne Twp., Greene Co., PA, p. 229B, 128/128, enumerated 4 Nov 1850 (extracted by Diana Gale Matthiesen):

George Eli	33	M	Farmer	2000
Mary    "	26	F
Matilda "	6	F
Caleb   "	4	M
Euphen  "	3	F

This census enumerator, who was in general very sloppy, left the majority of the birthplaces blank on all pages; presumably these are all birthplace PA.

2.  Anon.  1893.  Commemorative Biographical Record of Washington County, Pennsylvania.  J.H. Beers & Co., Chicago.  On p. 213:

JONAS ELY, MD ... is a native of Greene County, Penna, born March 2, 1853, near Waynesburg in Whitely Township... George Ely, father of Dr Jonas Ely, was born in Washington County, Penna, September 5, 1818, and was married to Mary Warrick, also a resident of Washington County.  After their marriage they moved to Greene County, same state, where they made their home, having born to them seven children—four sons and three daughters.  They were both members of the M.E. Church from early life and were zealous, conscientious Christians.  Mrs. Ely passed away December 29, 1887, aged sixty two years.  She died as she had lived, leaving testimony behind that her work was well done.  Mr. Ely is still living and has been one of the successful farmers and stock raisers of that county.  He has more than an ordinary mind and has characteristics worthy of example, always living up to the "golden rule."  He was frugal, industrious, patient and upright in all his dealings.  He has the respect and esteem of all who know him.  A neighbor made the remark to an attorney when riding past Mr. Ely's farm, that if all men were like him we would have no use for lawyers...

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

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