United States Census, 1940
Name: John Cavenaugh
Event Place: Ward 4, Waterloo, East Waterloo Township, Black Hawk, Iowa
Gender: Male
Age: 61
Marital Status: Married
Race: White
Relationship to Head of Household: Head
Birthplace: Iowa
Birth Year (Estimated): 1879
Last Place of Residence: Huron, Beattle, South Dakota
Household
John Cavenaugh Head M 61 Iowa
Celia Cavenaugh Wife F 55 Iowa

South Dakota, State Census, 1935
Name: John P Cavanaugh
Age: 56
Birth Year (Estimated): 1879
Gender: Male
Birthplace: Iowa
Race: White
Marital Status: Married
Marriage Date: 1908
Event Place: Union, Spink, South Dakota
Post Office: Carpenter, South Dakota
Naturalized: No
Father's Birthplace: New York
Mother's Birthplace: Illinois

United States Census, 1930
Name: John P Cavanagh
Event Place: Union, Spink, South Dakota
Gender: Male
Age: 51
Marital Status: Married
Race: White
Relationship to Head of Household: Head
Birth Year (Estimated): 1879
Birthplace: Iowa
Father's Birthplace: Illinois
Mother's Birthplace: Illinois
Household
John P Cavanagh Head M 51 Iowa
Celia M Cavanagh Wife F 45 Iowa
J Bertrand Cavanagh Son M 20 Iowa
Thornton J Cavanagh Son M 12 Iowa

United States Census, 1920
Name: J Cavanaugh
Event Place: Buckingham, Tama, Iowa
Gender: Male
Age: 41
Marital Status: Married
Race: White
Relationship to Head of Household: Head
Birth Year (Estimated): 1879
Birthplace: Iowa
Father's Birthplace: New York
Mother's Birthplace: Iowa
Household
J Cavanaugh Head M 41 Iowa
Mrs. Cavanaugh Wife F 35 Iowa
J B Cavanaugh Son M 10 Iowa
J T Cavanaugh Son M 2 Iowa

United States Census, 1910
Name: John P Cavanagh
Event Place: Buckingham, Tama, Iowa
Gender: Male
Age: 31
Marital Status: Married
Race: White
Relationship to Head of Household: Head
Birth Year (Estimated): 1879
Birthplace: Iowa
Father's Birthplace: New York
Mother's Birthplace: New York
Household
John P Cavanagh Head M 31 Iowa
Celia Cavanagh Wife F 25 Iowa
John B Cavanagh Son M 0 Iowa

Iowa, County Marriages, 1838-1934
Name: John Patrick Cavanagh
Event Type: Marriage
Event Date: 08 Jan 1908
Event Place: Blessing, Blackhawk, Iowa
Age: 30
Father's Name: Christopher R. Cavanagh
Mother's Name: Catharine Emmett
Spouse's Name: Cecelia Mary Thornton
Spouse's Birth Year (Estimated): 1884
Spouse's Father's Name: Thomas Thornton
Spouse's Mother's Name: Hannah C. Thornton

United States Census, 1900
Name: Chri* Kavanaugh
Event Place: Eagle & Lincoln Townships, Black Hawk, Iowa
Gender: Male
Age: 50
Marital Status: Married
Race: White
Relationship to Head of Household: Head
Years Married: 22
Birth Date: Jun 1850
Birthplace: New York
Marriage Year (Estimated): 1878
Father's Birthplace: Ireland
Mother's Birthplace: Ireland
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: John Cavanagh
Event Place: Black Hawk, Iowa
Gender: Male
Birth Year (Estimated): 1879
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: John Cavanaugh
Event Place: Geneseo, Tama, Iowa
Gender: Male
Age: 7
Birth Year (Estimated): 1878
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: Christopher Cavanaugh
Event Place: Lincoln, Black Hawk, Iowa
Gender: Male
Age: 31
Marital Status: Married
Race: White
Occupation: Farmer
Relationship to Head of Household: Self
Birth Year (Estimated): 1849
Birthplace: New York
Father's Birthplace: Ireland
Mother's Birthplace: Ireland
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