AC
Arthur Cooper — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Clearwater-County, Idaho
Our Model Tree links this Arthur Cooper across the 1930 and 1940 US Censuses in Clearwater-County, Idaho (XGBoost, ~Confirmed) — first a son (b.~1927), then head of a 10-person household.
Age 13
b. ~1927
Male
Son
Born: Idaho
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Clearwater-County, Idaho |
| Surname | Cooper |
| Given Name | Arthur L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Idaho |
| 1935 Residence (City) | Greer Precinct |
| 1935 Residence (County) | Clearwater |
| Additional Details | |
| Highest Grade | 6 |
| 1935 Residence | Same place |
| Birth State | Idaho |
| Birth Country | United States |
| Birthplace (normalized) | idaho |
| Township / Ward | Greer Precinct |
| Est. Birth Year | ~1927 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Arthur | Age | Birth yr |
|---|---|---|---|---|
| Gloria Cooper | Daughter | — | 14 | ~1926 |
| Alva Cooper | Son | — | 7 | ~1933 |
| Charles Cooper | Son | — | 17 | ~1923 |
| Arthur Cooper | Head | — | 47 | ~1893 |
| Arthur Cooper | Son | — | 13 | ~1927 |
| Edna Cooper | Spouse | — | 41 | ~1899 |
| Ellen Cooper | Daughter | — | 17 | ~1923 |
| Lloyd Cooper | Son | — | 4 | ~1936 |
| Ellie Cooper | Daughter | — | 16 | ~1924 |
| Emma Cooper | Daughter | — | 6 | ~1934 |
Census Appearances
1930
Clearwater, Idaho
Son, age 3
Clearwater, Idaho · implied b. ~1927 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cooper |
| Given Name | Arthur |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Idaho |
| Father's Birthplace | Washington |
| Mother's Birthplace | Nebraska |
| Can Read/Write | No |
| Birth State | Idaho |
| Birth Country | United States |
| Birthplace (normalized) | idaho |
1940
Clearwater-County, Idaho
Son, age 13
Clearwater-County, Idaho · implied b. ~1927 — 10 household members
| Surname | Cooper |
| Given Name | Arthur L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Idaho |
| 1935 Residence (City) | Greer Precinct |
| 1935 Residence (County) | Clearwater |
| Highest Grade | 6 |
| 1935 Residence | Same place |
| Birth State | Idaho |
| Birth Country | United States |
| Birthplace (normalized) | idaho |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links Arthur Cooper across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Arthur Cooper
Son · 1940 · age 13 · b. ~1927 · Idaho
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Sibling
Gloria Cooper
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alva Cooper
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Emma Cooper
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Cooper
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ellie Cooper
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ellen Cooper
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lloyd Cooper
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Clearwater-County, Idaho
Open full size
1940 US Federal Census — Clearwater-County, Idaho
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00744-00675)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | George W. Hill | 39 | Head | General Laborer | Kansas |
| 2 | Grace O. Hill | 37 | Wife | — | Colorado |
| 3 | Betty M. Hill | 14 | Daughter | — | California |
| 4 | Barbara Jean Hill | 7 | Daughter | — | California |
| 5 | Maxwell Rambeau | 26 | Head | General Laborer | Idaho |
| 6 | Dorothy Rambeau | 17 | Wife | — | California |
| 7 | Lucille Rambeau | 0 | Daughter | — | Idaho |
| 8 | Arthur T. Cooper | 47 | Head | Farmer | Washington |
| 9 | Edna Cooper | 41 | Wife | — | Nebraska |
| 10 | Charles A. Cooper | 17 | Son | Farm Laborer | Idaho |
| 11 | Ellen May Cooper | 17 | Daughter | Housekeeper | Idaho |
| 12 | Ellie E. Cooper | 16 | Daughter | — | Idaho |
| 13 | Gloria C. Cooper | 14 | Daughter | — | Idaho |
| 14 | Arthur L. Cooper THIS PERSON | 13 | Son | — | Idaho |
| 15 | Alva B. Cooper | 7 | Son | — | Idaho |
| 16 | Emma J. Cooper | 6 | Daughter | — | Idaho |
| 17 | Lloyd V. Cooper | 4 | Son | — | Idaho |
| 18 | Robert W. Cook | 61 | Head | Laborer | Canada-English |
| 19 | Fred G. Olin | 29 | Head | Watchman | North Dakota |
| 20 | Gladys Olin | 25 | Wife | — | North Dakota |
| 21 | Gloria Ann Olin | 6 | Daughter | — | North Dakota |
| 22 | Olaf Gerry Olin | 5 | Son | — | North Dakota |
| 23 | Leo J. Olin | 2 | Son | — | Idaho |
| 24 | Lucille M. Olin | 0 | Daughter | — | Idaho |
| 25 | Horace W. Littlefield | 31 | Head | General Laborer | Oregon |
| 26 | Lois Littlefield | 25 | Wife | — | Oregon |
| 27 | Ralph Pruitt | 25 | Lodger | Caterpillar Driver | Minnesota |
| 28 | Bush E. Hamilton | 47 | Head | Farm Manager | Texas |
| 29 | Julia Hamilton | 29 | Wife | — | Canada-English |
| 30 | Mort A. Kerr | 32 | Head | General Laborer | Missouri |
| 31 | Vunkie Kerr | 19 | Wife | — | Idaho |
| 32 | Frances J. Kerr | 1 | Daughter | — | Idaho |
| 33 | Frank H. Netter | 36 | Head | Farm Partnership | Idaho |
| 34 | Albert T. Netter | 32 | Brother | Farm Partnership | Idaho |
| 35 | Nels Lindstrom | 61 | Head | Wood Seller | Sweden |
| 36 | Bertha Lindstrom | 50 | Wife | — | Nebraska |
| 37 | Mary S. Lindstrom | 17 | Daughter | — | Washington |
| 38 | Vera M. Lindstrom | 9 | Daughter | — | Idaho |
| 39 | Thomas S. Martin | 58 | Head | Farm Manager | Michigan |
| 40 | Clara M. Martin | 52 | Wife | Camp Cook | Illinois |
Related Census Records
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)