The Family of William Irvine and Mary Ann Karns: Census Returns

Mary Ann Madden married her first husband, Daniel M Hogan in 1895 and he died 7 months later - so there is no census showing them as a married couple. Mary Ann (Madden) Hogan married her second husband, William Irvin Karns in 1898, but I have not yet found them in the 1900 Census:

1910 CENSUS OF OIL CITY, VENANGO COUNTY, PENNSYLVANIA:
NAME:	RELATION:	RACE:	SEX:	AGE:	STATUS:	OCCUPATION:	BIRTHPLACE:
William I Karns	Head	White	M	44	Married	Laborer, Refinery Company	Pennsylvania
Mary Karns	Wife	White	F	36	Married	-	Pennsylvania

1:	Living at 101 Charlton Street, Oil City, Venango County, Pennsylvania.
2:	William and Mary Ann had been married 12 years and had no children.
3:	The census schedule records that Mary Ann's father was born in Ireland, her mother was born in New York, and both of William's parents were born in Pennsylvania.

Mary Ann's younger brother William lost his wife shortly after the birth of their son William in January 1911. As a widower with four young children, William must have found caring for a newborn baby difficult. At some point, young William went to live with his childless aunt and uncle, and was with them at the time of the 1920 Census:

1920 CENSUS OF OIL CITY, VENANGO COUNTY, PENNSYLVANIA:
NAME:	RELATION:	RACE:	SEX:	AGE:	STATUS:	OCCUPATION:	BIRTHPLACE:
William I Karns	Head	White	M	55	Married	Laborer, Steam Railway	Pennsylvania
Mary A Karns	Wife	White	F	46	Married	None	Pennsylvania
William P Madden	Nephew	White	M	9	Single	None	Pennsylvania

1:	Living at 101 Charlton Street, Oil City, Venango County, Pennsylvania.
2:	William and Mary Ann owned their home outright.
3:	The census schedule records that Mary Ann's father was born in Ireland, her mother was born in New York. William Irvin's and young William's parents were all listed as having been born in Pennsylvania.
4:	William Irvin, Mary Ann, and their nephew could all read and write. William P Madden was attending school.
5:	Probably due to an error on the part of the Enumerator, Mary Ann was listed further down the page than her husband and nephew.

Some time after the date of the 1920 Census, William and Mary Ann adopted their nephew, and he used the surname Karns for the rest of his life.

1930 CENSUS OF OIL CITY, VENANGO COUNTY, PENNSYLVANIA:
NAME:	RELATION:	RACE:	SEX:	AGE:	STATUS:	OCCUPATION:	BIRTHPLACE:
William I Karns	Head	White	M	65	Married	Laborer, Barrel Factory	Pennsylvania
Mary A Karns	Wife	White	F	56	Married	None	Pennsylvania
William P Karns	Adopted Son	White	M	19	Single	Laborer, Barrel Factory	Pennsylvania

1:	Living at 101 Charlton Street, Oil City, Venango County, Pennsylvania.
2:	William and Mary Ann owned their home, which was valued at $1150.
3:	The census records that Mary Ann's father was born in the Irish Free State (now the Republic of Ireland), her mother was born in New York. William Irvin's and young William's parents were all listed as having been born in Pennsylvania.
4:	All of the above census information is taken from scanned images at www.ancestry.co.uk.

1940 CENSUS OF OIL CITY, VENANGO COUNTY, PENNSYLVANIA:
NAME:	RELATION:	RACE:	SEX:	AGE:	STATUS:	OCCUPATION:	BIRTHPLACE:
William I Karns	Head	White	M	74	Married	Laborer, Refinery	Pennsylvania
Mary A Karns	Wife	White	F	67	Married	-	Pennsylvania
William P Karns	Son	White	M	29	Single	Watchman, Brewery	Pennsylvania

1:	Living at 101 Union Street, Oil City, Venango County, Pennsylvania.
2:	William and Mary Ann Karns owned their home, which was valued at $950.
3:	The highest grade of school completed for William P (Madden) Karns was 8th grade. William Irvin and Mary Ann each completed the 5th grade.
4:	The 1940 census schedules recorded information differently than previous censuses. Instead of recording the birthplace of each persons' parents they chose to select certain individuals to record 'Supplementary Questions'. In this case, no one in this household was asked the additional questions.
5:	The above information is taken from scanned images at http://1940census.archives.gov.

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