I have been transcribing a number of deeds for the last year, and here are a number of them that deal with Oswego County. Michael VanBuren at:  <MVanb21845@aol.com>.
*Many thanks and appreciation to Michael VanBuren for contributing these wonderful Deeds on various individuals from Oswego County.  

I have received the following documents.

Philander Locke's death certificate
       Date of Death - August 20, 1899
       Place of Death - Fulton, NY
       Cause - Pneumonia
       Age - 73 yrs, 6m, 7 d
       Birthplace - Edinburg, Mass.
       Father - Reuben Locke
       Mother - Phoebe Russell

Mercy P. Locke's death certificate
       Date of Death - November 13, 1925
       Place of Death - Fulton
       Cause of Death - Arterial Sclerosis
            Contributory Cause - Myocardial Degeration
       Date of Birth - October 17, 1841
       Birthplace - Watertown, NY
       Father - Richard Phillips
       Mother - unknown
       Residence - 502 Cayuga St., Fulton, NY

I have found Mercy Phillips in the 1850 and 1860 censuses (Pamelia, NY), with Richard Phillips and a Guldah Phillips.  Her birthplace on both censuses is listed as Canada.

Nada E. Locke, David W. VanBuren Marriage Certificate
April 8, 1888

Nathan W. Locke's Death Certificate

Date of Death - November 15, 1926
Place of Death - Volney, NY
Cause of Death - Myocarditis
       Contributory Cause - senility
Date of Birth - December 25, 1842
Birth Place - New York State
Father - William Locke
Mother - Martha ? (can't read last name)

Adeline E. Locke's Death Certificate
Date of Death - May 31, 1899
Place of Death - Fulton, NY
Cause of Death - Paralysis
Age - 59 yr, 9 m
Birthplace - Volney, NY
Father - James Merton
Father's Birthplace - Sussex, England
Mother - Jane White - Sussex, England

Indenture - Nathaniel and Hannah Heath to Wilber Locke
Part of Lot Sixteen in Sandy Creek.  Containing 30 3/4 acres.
$369
December 29, 1846
Recorded July 6, 1846

Indenture - John J. "Nellis"? to Wilber Locke
Five thousand three and ninety-three and 80/100 dollars
March 1, 1859
198 68/100 acres in Sandy Creek
Recorded September 13, 1859

Indenture - Wilbur and Martha Ann Locke to William H. Dettinger
August 27, 1859
$387.55
13 45/100 acres in Sandy Creek.  This land is part of the land from John J. Nellis
Recorded December 2?, 1860

Indenture - Willington and Jane Eaton to Martha A. Locke
December 17, 1867
$1,000
10 1/2 acres in Volney, NY
Recorded September 24, 1870

Indenture - Mary Timerman to Martha A. Locke
January 13, 1871
$800
Lots 10 &17 of Block 69 in Fulton, NY
Recorded January 16, 1871

Adaline E. Locke to Nathan Locke
$500
December 15, 1896
North-half of Lot No. 6 of Block No. 57
Recorded July 27, 1899

Will of Nathan A. Locke, which has the signature of Nathan W. Locke
 

Part 2

Indentures
Oshed and Eunice Goss to Wilber Locke
Indenture made October 15, 1850
Land in Town of Theresa (part of lot 100)

Herbert H. and Sarah B. Kinney to Wilber Lock
Indenture made February 18, 1862
Land in Town of Volney (46 68/100 acres) (part of lot l01)

Nathaniel and Hannah Heath, and Asa and Elizabeth Heath to Wilber Locke
Indenture made 12/29/1845
Land in Sandy Creek (part of lot 16)

John J. and Jane May Nellis to Wilber Locke
Indenture made 3/21/1859
Land in Sandy Creek

Wilbur Lock and Martha Ann Lock to William H. Bettinger
Indenture made 8/27/1859
Land in town of Sandy Creek

Sarah Jane and Wellington Eaton to Martha A. Locke
Indenture made 12/17/1867
Land in town of Volney

Martha A. and Wilber Locke to Erastus Locke
Indenture made June 7, 1869
Land in town of Volney, part of Lot No. 3, 2 acres of land

Mary Timerman to Martha A. Locke
Indenture made 1/13/1871
Land in Fulton (Lots No. 10 & 69 of Block No. 69)

Wilbur and Martha Ann Locke to Mary Timerman
Indenture made March 15, 1872
Land in Brownsville, Jefferson County at south shore of Griffins Bay
Adeline E. Locke to Nathan Locke
Indenture made 12/15/1896
Land in Fulton

Will of Nathan A. Locke
Nathan A. Locke is the son of Nathan W. Locke