The following information is found at

http://awtc.ancestry.com/cgi-bin/igm.cgi?op=GET&db=:a42848&id=I545

The researcher is identified only by initials “JPM”, and he offers the following notes:

“In the GREENE COUNTY WILL BOOK II, 1831-1846, p. 82, the will of Samuel D. McCarle lists his wife as Mahala McCarle. -This was the abstract book. When I wrote to Greene County The register of wills said there had been no will, only an estate. From the lists of his "mercantile books", I would say he was a merchant. -JPM”

“Will Book #2-No.908- Citation from the register to Mahala McCarle the wife of Samuel D. McCarle Dec'd to show cause why leters of Administration should not be granted. Citation return with Renunciation of the widdow ( I decline administring on my husband estate and Recommend Wm. Leonard & Silas Coe to be appointed her
Witness Mahala + McCarle
mark
Samuel Clivenger.”

“Will Book #2-No.909- Letters of administration granted to William Leonard and Silas Coe Aprile 4th 1839. Bond with John Leonard and Andrew Wilson as Surities Taken Someday. Renunciation of widow filed with bond. Inventory filed Aprile 20th 1839. Vendue list filed June 8 - 1839.”

“In Lecky's "The Tenmile Country and its Pioneer Families", on page 477 he writes that Mahala Huffman, a daughter of George Huffman, Jr. and Julia Frey Huffman married a man with the surname McCarl.
( The Tenmile Country is located in Greene County, PA. - J.M.)”

ADDITIONAL INFORMATION:
THE “History of Greene County, Pennsylvania” by Samuel P. Bates, 1888, on Page 462, indicates that Samuel D. McCarl became a Justice of the Peach on 10 January 1838, for District No. 5 in Greene County. (District No. 5 is composed of the Townships of Whitely, Wayne, and part of Alepo.)