1900 United States Federal Census
Name: Louis Derosier
Age: 21
Birth Date: Jul 1878
Birthplace: Minnesota
Home in 1900: Saint Mathias, Crow Wing, Minnesota
Race: White
Gender: Male
Relation to head of house: Son
Marital Status: Single
Father's Name: Joseph Derosier
Father's Birthplace: France, Canada
Mother's Name: Annie Derosier
Mother's Birthplace: Canada, France
Household Members:
Name Age
Joseph Derosier 58
Annie Derosier 47
Joseph M Derosier 23
Louis Derosier 21
Theodore Derosier 20
Leon Derosier 18
Agness Derosier 16
Dolor Derosier 14
Alfred Derosier 13
Albert Derosier 11
Clara Derosier 8
Mitchel Derosier 6
Lucien Derosier 2

1910 United States Federal Census
Name: Louis Derosier
Age in 1910: 32
Birth Year: abt 1878
Birthplace: Minnesota
Home in 1910: St Mathias, Crow Wing, Minnesota
Race: White
Gender: Male
Relation to Head of House: Son
Marital Status: Single
Father's Name: Joseph Derosier
Father's Birthplace: Canada French
Mother's Name: Annie Derosier
Mother's Birthplace: Canada French
Household Members:
Name Age
Joseph Derosier 64
Annie Derosier 57
Louis Derosier 32
Leon Derosier 26
Albert Derosier 19
Mitchell Derosier 16
Lucien Derosier 12

1920 United States Federal Census
Name: Louis Derosier
Age: 46
Birth Year: abt 1874
Birthplace: Minnesota
Home in 1920: Fort Ripley, Crow Wing, Minnesota
Race: White
Gender: Male
Relation to Head of House: Son
Marital Status: Single
Father's Name: Louis Derosier
Father's Birthplace: Canada
Mother's Name: Odile Derosier
Mother's Birthplace: Canada
Able to Read: Yes
Able to Write: Yes
Household Members:
Name Age
Louis Derosier 74
Odile Derosier 69
Louis Derosier 46
Theod Derosier 44
Joseph Derosier 42
Thomas Derosier 39
Alfred Derosier 35
Henry Derosier 31

1930 United States Federal Census
Name: Louis De Rosier
Gender: Male
Birth Year: abt 1879
Birthplace: Minnesota
Race: White
Home in 1930: St Mathias, Crow Wing, Minnesota
Marital Status: Married
Relation to Head of House: Head
Spouse's Name: Maggie De Rosier
Father's Birthplace: Canada French
Mother's Birthplace: Canada French
Household Members:
Name Age
Louis De Rosier 51
Maggie De Rosier 45
Mathew De Rosier 18
Ezilda De Rosier 17
Jeanett Derosier 15
Leroy Derosier 8
Julia Derosier 6