United States Census, 1920
Name: Mary L Cavanaugh
Event Place: Waterloo Ward 1, Black Hawk, Iowa
Gender: Female
Age: 38
Marital Status: Single
Race: White
Relationship to Head of Household: Sister-in-law
Birth Year (Estimated): 1882
Birthplace: Iowa
Father's Birthplace: Illinois
Mother's Birthplace: Illinois
Listed in Household;
Philip Mahoney Head M 41 Iowa
Nora C Mahoney Wife F 36 Iowa
Mary P Mahoney Daughter F 7 Iowa
Mary L Cavanaugh Sister-in-law F 38 Iowa
Leo A Cavanaugh Brother-in-law M 29 Iowa
Frances K Cavanaugh Sister-in-law F 26 Iowa

United States Census, 1910
Name: Mary Cavanaugh
Event Place: Lincoln, Black Hawk, Iowa
Gender: Female
Age: 28
Marital Status: Single
Race: White
Relationship to Head of Household: Daughter
Birth Year (Estimated): 1882
Birthplace: Iowa
Father's Birthplace: New York
Mother's Birthplace: Illinois
Listed in Household;
Christ Cavanaugh Head M 62 New York
Kathryn Cavanaugh Wife F 59 Illinois
Mary Cavanaugh Daughter F 28 Iowa
Christ Cavanaugh Son M 23 Iowa
Nellie Cavanaugh Daughter F 22 Iowa
Grace Cavanaugh Daughter F 21 Iowa
Les Cavanaugh Son M 20 Iowa
Francis Cavanaugh Daughter F 19 Iowa

United States Census, 1900
Name: Mary Kavanaugh
Event Place: Eagle & Lincoln Townships, Black Hawk, Iowa
Gender: Female
Age: 20
Marital Status: Single
Race: White
Relationship to Head of Household: Daughter
Birth Date: Jan 1880
Birthplace: Iowa
Father's Birthplace: New York
Mother's Birthplace: Illinois
Listed in Household;
Christopher Kavanaugh Head M 50 New York
Katharine E Kavanaugh Wife F 45 Illinois
John Kavanaugh Son M 22 Iowa
Mary Kavanaugh Daughter F 20 Iowa
Norah Kavanaugh Daughter F 19 Iowa
William Kavanaugh Son M 17 Iowa
Nellie Kavanaugh Daughter F 16 Iowa
Christopher Kavanaugh Son M 13 Iowa
Leo Kavanaugh Son M 12 Iowa
Frances Kavanaugh Daughter F 9 Iowa

Iowa State Census, 1895
Name: Mary Cavanagh
Event Place: Black Hawk, Iowa
Gender: Female
Birth Year (Estimated): 1881
Listed in Household;
Chris R Cavanagh M 47
Cathren Cavanagh F 42
John Cavanagh M 16
Mary Cavanagh F 14
Nory Cavanagh F 13
William Cavanagh M 12
Nellie Cavanagh F 10
Cristy Cavanagh M 9
Grace Cavanagh F 8
Leo Cavanagh M 6
Frances Cavanagh F 3

Iowa State Census, 1885
Name: Mary Cavanaugh
Event Place: Geneseo, Tama, Iowa
Gender: Female
Age: 5
Birth Year (Estimated): 1880
Listed in Household;
Chris Cavanaugh M 33
Katie Cavanaugh F 31
John Cavanaugh M 7
Mary Cavanaugh F 5
Nora Cavanaugh F 4
William Cavanaugh M 2
Nellie Cavanaugh F 1

United States Census, 1880
Name: Mary Cavanaugh
Event Place: Lincoln, Black Hawk, Iowa
Gender: Female
Age: 0
Marital Status: Single
Race: White
Relationship to Head of Household: Daughter
Birth Year (Estimated): 1880
Birthplace: Iowa
Father's Birthplace: New York
Mother's Birthplace: Illinois
Listed in Household;
Christopher Cavanaugh Self M 31 New York
Catharine Cavanaugh Wife F 28 Illinois
John Cavanaugh Son M 1 Iowa
Mary Cavanaugh Daughter F 0 Iowa