Daughter of Patrick Rogan and Margaret McLennon (Lenon on d/c). Mamie was born in Montana Territory per 1880 Census on Ancestry, her d. cert. gives North Dakota.

Occupation: Housekeeper

MO d/c 42316—As Mary Rogan

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1880 United States Federal Census
Name: Mary H. Rogan
Age: 1
Birth Date: Abt 1879
Birthplace: Montana Territory
Home in 1880: Fort Buford, Wallette, Dakota Territory, USA
Race: White
Gender: Female
Relation to Head of House: Daughter
Marital Status: Single
Father's name: Patrick Rogan
Father's Birthplace: Ireland
Mother's name: Margarette Rogan
Mother's Birthplace: Ireland
Occupation: At Home
Household Members: Name Age
Patrick Rogan 34
Margarette Rogan 27
John E. Rogan 9
William J. Rogan 7
Francis P. Rogan 3
Mary H. Rogan 1

1900 United States Federal Census
Name: Mamie Rogan
[Monnie Rogan]
Age: 21
Birth Date: Apr 1879
Birthplace: Montana
Home in 1900: Southside, Sweetwater, Wyoming
Street: East of No 1 Mine
Race: White
Relation to Head of House: Daughter
Marital Status: Single
Father's name: Patrick Rogan
Father's Birthplace: Ireland
Mother's name: Margaret Rogan
Mother's Birthplace: Ireland
Occupation: Dress Maker
Household Members: Name Age
Patrick Rogan 53
Margaret Rogan 50
Mamie Rogan 21
George Rogan 19
Jennie Rogan 17
Charles Rogan 15
Houghie Rogan 13
Sterling K Fenwick 21

1920 United States Federal Census
Name: Mary Rogan
Age: 40
Birth Year: abt 1880
[abt 1878]
Birthplace: Montana
Home in 1920: Macon, Macon, Missouri
Street: Pearl
Residence Date: 1920
Race: White
Gender: Female
Relation to Head of House: Housekeeper
Marital Status: Single
Father's Birthplace: Ireland
Mother's Birthplace: Ireland
Occupation: Servant
Industry: House Keeper
Household Members: Name Age
T J Barrett
Mary Rogan 40

1930 United States Federal Census
Name: Mary Rogan
[Mary Rogen]
Birth Year: abt 1879
Gender: Female
Race: White
Birthplace: Montana
Marital Status: Single
Relation to Head of House: Servant
Home in 1930: Macon, Macon, Missouri, USA
Street address: Pearl Street
House Number: 219
Father's Birthplace: Ireland
Mother's Birthplace: Ireland
Occupation: House Keeper
Industry: Private Family
Household Members: Name Age
Peter B O Rourke 29
Mary Rogan 51

1940 United States Federal Census
Name: Mary Rogan
Age: 66
Estimated birth year: abt 1874
Gender: Female
Race: White
Birthplace: Montana
Marital Status: Single
Relation to Head of House: Lodger
Home in 1940: Macon, Macon, Missouri
Street: Pearl Street
House Number: 219
Residence in 1935: Same House
Occupation: Housekeeper
Highest Grade Completed: High School, 4th year
Household Members: Name Age
Peter B O'Rourke 40
Mary Rogan 66