Courtesy reply - not related

1910; Census Place: Logan, Burleigh, North Dakota; Roll: T624_1140; Page: 9B; Enumeration District: 34; Image: 288. +++ 1920;Census Place: Morton, Burleigh, North Dakota; Roll: T625_1331; Page: 5A; Enumeration District: 75; Image: 954.

Thomas Gilbert Cooper born 23 Dec 1881 or 1882 TN MI TN or TN NC TN; registered WW I Draft in Burleigh Co ND, birth year 1882
Loretta Agnes Cooper 1879 IL IL MI or IL PA MO
Mary Olive Cooper 1906 ND
Edgar David Cooper 1907 ND
Bessie M Cooper 1908 ND
Gladys Ester Cooper 1909 ND
Elsie Cooper 1913 ND
Ellison Cooper 1913 ND
Alice Cooper 1915 ND
Albert Cooper 1915 ND
James Cooper 1919 ND - not mentioned in your query

Name: Edgar E Cooper
Home in 1930: Morton, Burleigh, North Dakota
Age: 24
Estimated Birth Year: abt 1906
Birthplace: North Dakota
Relation to Head of House: Lodger
Race: White

1930; Census Place: Placerville, El Dorado, California; Roll: 115; Page: 1A; Enumeration District: 15; Image: 224.0.
William A Heuston 1900 CA
Mary Olive Cooper Heuston 1906
Gladys M Heuston 1928

Name: Gladys May Heuston
Birth Date: 12 Jan 1928
Gender: Female
Mother's Maiden Name: Cooper
Birth County: El Dorado

Name: Patricia Marie Heuston
Birth Date: 23 Jul 1931
Gender: Female
Mother's Maiden Name: Cooper
Birth County: El Dorado

MARY O Heuston
29 May 1906 - 31 Jan 1995
95667 (Placerville, El Dorado, CA) (none specified) 548-34-9366 California

Name: Mary Olive Heuston
[Mary Olive Cooper]
Social Security #: 548349366
Sex: FEMALE
Birth Date: 29 Mar 1906
Birthplace: North Dakota
Death Date: 31 Jan 1995
Death Place: El Dorado
Mother's Maiden Name: Kerns
FATHER'S SURNAME: Cooper

WILLIAM Heuston
16 Feb 1900 - Jul 1980
95667 (Placerville, El Dorado, CA) (none specified) 556-09-5360 California

Unable to find remaining Cooper's in 1930 record.

California Death Index 1940 - 1997
Name: Albert Brant Cooper
Social Security #: 0
Sex: MALE
Birth Date: 24 Jul 1914
Birthplace: North Dakota
Death Date: 28 Apr 1949
Death Place: El Dorado
Mother's Maiden Name: Kerns
FATHER'S SURNAME: Cooper

ALICE L BISHOP
24 Jul 1914 - 19 Apr 1998
95667 (Placerville, El Dorado, CA) (none specified) 552-18-0534 California

Name: Thomas Gilbert Cooper
Social Security #: 566167533
Sex: MALE
Birth Date: 23 Dec 1881
Birthplace: Tennessee
Death Date: 10 Dec 1957
Death Place: El Dorado
FATHER'S SURNAME: Cooper

Name: Ellison T Cooper
Social Security #: 546074088
Sex: MALE
Birth Date: 21 Feb 1910
Birthplace: North Dakota
Death Date: 17 Jul 1979
Death Place: El Dorado

JAMES Cooper
27 Jul 1919 - Sep 1976
last residence 95667 (Placerville, El Dorado, CA) (none specified) 558-16-8954 California
[not in California death index]

?
ELSIE M ZARNOWSKI
21 Feb 1910 - 15 Apr 2000
(V) XX738 (PE) (none specified) 556-35-9198 California

Name: Edgar David Cooper
Social Security #: 566183653
Sex: MALE
Birth Date: 29 Mar 1906
Birthplace: North Dakota
Death Date: 17 Nov 1989
Death Place: Sacramento
Mother's Maiden Name: Kern

GLADYS E KAA
23 Oct 1908 - 19 Mar 2003
(P) 94597 (Walnut Creek, Contra Costa, CA) (none specified) 548-14-6604 California

Mrs. Loretta Cooper, housewife, Rt 1, Box 10-K, Placerville registered Democrat, Precinct 12, Smith's Flat, Eldorado Co, 1930 - 1944 voter registrations.

Ellison Cooper of same address, truck driver.

Name: Gladys Esther Kaa
Gender: Female
Residence State: California
Spouse: Arthur G Meidinger
Spouse residence state: California
Marriage Date: 25 Sep 1982
Marriage city: Carson City
Officiant type: Religious celebrant
Recorded date: 1 Oct 1982
Recorded city: Carson City
Book: 108
Page: -27
Instrument number: 56666

US Public Records Index
Name: Gladys E Meidinger
Birth Date: 1929
Street address: 111 Hillcroft Way
City: Walnut Creek
County: Contra Costa
State: California
Zip Code: 94596
Phone Number: 925-933-8686
Record Number: 66013705
Arthur G Meidinger born abt 1952

Name: Beverley Jean Cooper
Birth Date: 19 Aug 1935
Gender: Female
Mother's Maiden Name: Adler
Birth County: El Dorado

Name: Gery Ellison Cooper
Birth Date: 11 Sep 1937
Gender: MALE
Mother's Maiden Name: Adler
Birth County: El Dorado

?
Name: Winifred M Adler
Home in 1930: Placerville, El Dorado, California
Age: 13
Born: 30 Sep 1916 El Dorado County CA
Relation to Head of House: Daughter
Father's Name: Adolph G Adler
Mother's Name: Mabel J McCumsey Adler

Patricia M Heuston
Age: 40
Est. Birth: abt 1931
Spouse Name: James F Dennis
Spouse Age: 60
Est. Spouse Birth: abt 1911
Date: 4 Dec 1971
Location: El Dorado