GC
George Cooper — 1940 US Census Record
Model Tree available1940 United States Federal Census · Maricopa-County, Arizona
Our Model Tree links this George Cooper across the 1920, 1930 and 1940 US Censuses in Maricopa-County, Arizona (XGBoost, ~Confirmed), with identified parents John & Gertrude — first a head (b.~1913), then head of a 4-person household.
Age 27
b. ~1913
Male
Head
Born: Arizona
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Maricopa-County, Arizona |
| Surname | Cooper |
| Given Name | George Alton |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Arizona |
| 1935 Residence (City) | Chandler |
| 1935 Residence (County) | Maricopa |
| Additional Details | |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 70 |
| Income (1939) | 525 |
| Highest Grade | Hs 1 |
| 1935 Residence | Arizona |
| Birth State | Arizona |
| Birth Country | United States |
| Birthplace (normalized) | arizona |
| Occupation | Laborer |
| Est. Birth Year | ~1913 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to George | Age | Birth yr |
|---|---|---|---|---|
| Stella Cooper | Daughter | — | 3 | ~1937 |
| Beverly Cooper | Daughter | — | ~1940 | |
| George Cooper | Head | — | 27 | ~1913 |
| Stella Cooper | Spouse | — | 20 | ~1920 |
Census Appearances
1920
Maricopa, Arizona
Son, age 7
Maricopa, Arizona · implied b. ~1913 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cooper |
| Given Name | George A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Arizona |
| Father's Birthplace | Utah |
| Mother's Birthplace | Arkansas |
| Birth State | Arizona |
| Birth Country | United States |
| Birthplace (normalized) | arizona |
1930
Maricopa, Arizona
Son, age 17
Maricopa, Arizona · implied b. ~1913 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cooper |
| Given Name | George A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Arizona |
| Father's Birthplace | Utah |
| Mother's Birthplace | Arkansas |
| Can Read/Write | Yes |
| Birth State | Arizona |
| Birth Country | United States |
| Birthplace (normalized) | arizona |
1940
Maricopa-County, Arizona
Head, age 27
Maricopa-County, Arizona · implied b. ~1913 — 4 household members
| Surname | Cooper |
| Given Name | George Alton |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Arizona |
| 1935 Residence (City) | Chandler |
| 1935 Residence (County) | Maricopa |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 70 |
| Income (1939) | 525 |
| Highest Grade | Hs 1 |
| 1935 Residence | Arizona |
| Birth State | Arizona |
| Birth Country | United States |
| Birthplace (normalized) | arizona |
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 George Cooper across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Cooper (~0.92 confidence) and mother Gertrude Cooper (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Cooper
b. ~1883
Source father
● Household
· direct · ~0.92
Mother
Gertrude Cooper
b. ~1895
Source mother
● Household
· direct · ~0.92
This person
Anchor record
George Cooper
Head · 1940 · age 27 · b. ~1913 · Arizona
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Maricopa-County, Arizona
Open full size
1940 US Federal Census — Maricopa-County, Arizona
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00107-00131)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Henry Brooks | 23 | Head | Laborer | Oklahoma |
| 2 | Florida Mae Brooks | 22 | Wife | — | Texas |
| 3 | Rodney E. Hallford | 32 | Head | Watchman | Mississippi |
| 4 | Winnie L. Hallford | 29 | Wife | — | Texas |
| 5 | Ledora E. Hallford | 10 | Daughter | — | Texas |
| 6 | Helen Fay Hallford | 8 | Daughter | — | Texas |
| 7 | Aletra Fay Hallford | 7 | Daughter | — | Texas |
| 8 | Morris Franklin Hallford | 4 | Son | — | Arizona |
| 9 | Wilbert Wayne Hallford | 1 | Son | — | Arizona |
| 10 | Dwight J. Collier | 35 | Head | Carpenter | Texas |
| 11 | Nefina B. Collier | 31 | Wife | — | Texas |
| 12 | Lewis Collier | 14 | Son | — | Arizona |
| 13 | Edward Collier | 12 | Son | — | Arizona |
| 14 | William B. Billingsley | 50 | Head | Laborer | Oklahoma |
| 15 | Millicent E. Billingsley | 48 | Wife | — | Texas |
| 16 | Thomas W. Billingsley | 24 | Son | Tractor Driver | Oklahoma |
| 17 | Clyde O. Billingsley | 22 | Son | Laborer | Oklahoma |
| 18 | Frank H. Billingsley | 20 | Son | Laborer | Oklahoma |
| 19 | Freda Fay Billingsley | 15 | Daughter | — | Oklahoma |
| 20 | Melva B. Billingsley | 10 | Daughter | — | Oklahoma |
| 21 | Henry D. Giles | 48 | Head | Oil Driller | Oklahoma |
| 22 | Myra C. Giles | 45 | Wife | — | Kentucky |
| 23 | Billie D. Giles | 22 | Son | — | Kentucky |
| 24 | Ada E. Giles | 15 | Daughter | — | Kentucky |
| 25 | Ruth Winnie Giles | 12 | Daughter | — | Kentucky |
| 26 | Richard E. Giles | 10 | Son | — | Kentucky |
| 27 | Jacky H. Giles | 8 | Son | — | Kentucky |
| 28 | John Wesley Lozier | 52 | Head | Laborer | Texas |
| 29 | Teresa Evelyn Lozier | 49 | Wife | — | Texas |
| 30 | J. P. Lozier | 20 | Son | Laborer | Texas |
| 31 | Lily Lee Lozier | 17 | Daughter | — | Texas |
| 32 | Lillie Brannan | 52 | Sister-in-law | — | Texas |
| 33 | George Alton Cooper THIS PERSON | 27 | Head | Laborer | Arizona |
| 34 | Stella Pearl Cooper | 20 | Wife | — | Texas |
| 35 | Stella Lavon Cooper | 3 | Daughter | — | Arizona |
| 36 | Beverly Pearl Cooper | 0 | Daughter | — | Arizona |
| 37 | Lawrence H. Strange | 31 | Head | Farmer | Texas |
| 38 | Lois V. Strange | 29 | Wife | — | Texas |
| 39 | William F. Strange | 3 | Son | — | Texas |
| 40 | Lorenzo Crispin | 36 | Head | Laborer | New Mexico |
Pedigree Summary
George
Gen 1 · 2 parents
~0.92
Max depth 4 (1900–1950 window)
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)