This is not my direct line. William C. Price is my 2nd cousin 2 times removed. I did some research today for his wife and came up with the following for Emma Lois Hathaway, daughter of James Owen Hathaway.

My computer notes are below. Hope you find them helpful. I have no further information. Don't have an exact marriage date or place.

CENSUS: U.S. 1900 census; Watertown Ward 3, Jefferson, New York; searched 27 April 2009 by Ruth Ann Bagley via internet at www.ancestry.com

EXTRACT:

Name: Emma Hathaway
Home in 1900: Watertown Ward 3, Jefferson, New York
Age: 4
Birth Date: Nov 1895
Birthplace: New York
Race: White
Ethnicity: American
Gender: Female
Relationship to head-of-house: Daughter
Father's Name: James O
Father's Birthplace: Iowa
Mother's Name: Helen
Mother's Birthplace: New York
Marital Status: Single
Residence : Watertown City, Jefferson, New York

Household Members:
Name Age
James O Hathaway 40
Helen Hathaway 36
Niel F Hathaway 12
Barbara Hathaway 11
Elizabeth Hathaway 8
Emma Hathaway 4
Lois F Mansfield 70
Ella Townshend 23.

CENSUS: U.S. 1910 census; Watertown Ward 2, Jefferson, New York; searched 27 April 2009 by Ruth Ann Bagley via internet at www.ancestry.com. EXTRACT:
Name: Emma Hathaway
Age in 1910: 14
Estimated Birth Year: abt 1896
Birthplace: New York
Relation to Head of House: Daughter
Father's Name: James O???
Father's Birth Place: New York
Mother's Name: Helen
Mother's Birth Place: New York
Home in 1910: Watertown Ward 2, Jefferson, New York
Marital Status: Single
Race: White
Gender: Female
Name Age
James O?? Hathaway 49
Helen Hathaway 45
Neil Hathaway 22
Elizabeth Hathaway 17
Emma Hathaway 14.

CENSUS: U.S. 1920 census; Watertown Ward 4, Jefferson, New York; searched 27 April 2009 by Ruth Ann Bagley via internet at www.ancestry.com ;
EXTRACT:
Hathaway, James O, head, rents, male, white, age 60, wd, born New York, parents born New York, cashier, bank;
Lois, daughter, female, white, age 24, single, born New York, parents born New York, physical director, high school;
Elizabeth, daughter, female, white, age 26, single, born New York, parents born New York, Phos__ Therapist, private.

MARRIAGE: Estimated from U.S. 1930 census;

(1) William C. Price first marriage at age 30. He turned age 30 on 23 April 1923;
(2) Emma H. Price first marriage at age 27. She turned age 30 on 22 November 1925;
COMMENT:
(1) Assume this was first marriage for both.
(2) Assume they married in New York.
(3) Emma was born in New York and newspaper article dated 18 October 1921 indicates that William Price was headed for Madison Barracks [Sackets Harbor, Jefferson County] NY.
(4) William Price probably met his bride after he went to Madison Barracks, near her home.

CENSUS: U.S. 1930 census; District 76, Fort Bliss, El Paso, Texas; searched 27 April 2009 by Ruth Ann Bagley via internet at www.ancestry.com ;
EXTRACT:
Price, William C., head, rents, male, white, age 36, married, age 30 at first marriage, born Pennsylvania, parents born Pennsylvania, officer, United States Army;
Emma H., wife, female, white, age 34, married, age 27 at first marriage, born New York, parents born New York.

Emma H., wife, female, white, age 34, married, age 27 at first marriage, born New York, parents born New York.

BIRTH-DEATH: Florida Death Index, 1877-1998; searched 27 April 2009 by Ruth Ann Bagley via internet at ;
EXTRACT:
Name: Emma Hathway Price
Death Date: 30 May 1977
County of Death: Manatee
State of Death: Florida
Age at Death: 81
Race: White
Birth Date: 22 Nov 1895;
COMMENT:
Provides county of death, but not city.

BIRTH-DEATH: Social Security Death Index; searched 27 April 2009 by Ruth Ann Bagley via internet at http://ssdi.rootsweb.ancestry.com/;
EXTRACT:
Name: EMMA PRICE
Birth: 22 Nov 1895
Death: May 1977
Last residence: 33505 (Florida)
Last benefit: (none specified)
SSN: 267-41-8796
Isssued: Florida.

CEMETERY: U.S. Veterans Gravesites, ca.1775-2006; searched 27 April 2009 by Ruth Ann Bagley via internet at www.ancestry.com ;
EXTRACT:
Name: Emma Lois Hathway Price
Service Info.: LT COL US ARMY
Birth Date: 22 Nov 1895
Death Date: 30 May 1977
Relation: Wife of Price, William C
Cemetery: Arlington National Cemetery
Cemetery Address: C/O Director Arlington, VA 22211
Buried At: Section 4 Site 5645-G;
COMMENT:
No information provided for places of birth and death.