JC
James Cooper — 1940 US Census Record
Model Tree available1940 United States Federal Census · Wyandotte-County, Kansas
Our Model Tree links this James Cooper across the 1920, 1930 and 1940 US Censuses in Wyandotte-County, Kansas (XGBoost, ~Confirmed), with identified parents James & James — first a son (b.~1917), then head of a 5-person household.
Age 23
b. ~1917
Male
Son
Born: Kansas
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Wyandotte-County, Kansas |
| Surname | Cooper |
| Given Name | James E. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Kansas |
| 1935 Residence (City) | Kansas City City |
| 1935 Residence (County) | Wyandotte |
| Additional Details | |
| Occupation | Pattern Maker |
| Industry | Cabinet Mfg. |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 344 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
| Occupation | Pattern Maker |
| Township / Ward | Kansas City City |
| Est. Birth Year | ~1917 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Betty Cooper | Daughter | — | 21 | ~1919 |
| Blanche Cooper | Daughter | — | 24 | ~1916 |
| James Cooper | Head | — | 56 | ~1884 |
| James Cooper | Son | — | 23 | ~1917 |
| Blanche Cooper | Spouse | — | 54 | ~1886 |
Census Appearances
1920
Wyandotte, Kansas
Son, age 2
Wyandotte, Kansas · implied b. ~1918 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cooper |
| Given Name | James E. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Kansas |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Kansas |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1930
Wyandotte, Kansas
Son, age 13
Wyandotte, Kansas · implied b. ~1917 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cooper |
| Given Name | James E. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Kansas |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Kansas |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1940
Wyandotte-County, Kansas
Son, age 23
Wyandotte-County, Kansas · implied b. ~1917 — 5 household members
| Surname | Cooper |
| Given Name | James E. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Kansas |
| 1935 Residence (City) | Kansas City City |
| 1935 Residence (County) | Wyandotte |
| Occupation | Pattern Maker |
| Industry | Cabinet Mfg. |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 344 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
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 James Cooper across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father James Cooper (~0.92 confidence) and father James Cooper (~0.92 confidence) and mother Blanche Cooper (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Cooper
b. ~1878
Source father
● Household
· direct · ~0.92
Father
James Cooper
b. ~1884
Source father
● Household
· direct · ~0.92
Mother
Blanche Cooper
b. ~1884
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Cooper
Son · 1940 · age 23 · b. ~1917 · Kansas
★ You are viewing this record
Sibling
Betty Cooper
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Blanche Cooper
Sibling · 1940 · age 24
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 — Wyandotte-County, Kansas
Open full size
1940 US Federal Census — Wyandotte-County, Kansas
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01270-00235)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Frank Helfrich | 33 | Head | Salesman | Kansas |
| 2 | Alice Helfrich | 33 | Wife | Laborer | Missouri |
| 3 | Robert Helfrich | 13 | Son | — | Kansas |
| 4 | Shirley Helfrich | 9 | Daughter | — | Kansas |
| 5 | Frank Jr. Helfrich | 5 | Son | — | Kansas |
| 6 | James E. Cooper | 56 | Head | Stationary Engineer | Missouri |
| 7 | Blanche Cooper | 54 | Wife | — | Kansas |
| 8 | Blanche E. Cooper | 24 | Daughter | New Worker | Kansas |
| 9 | James E. Jr. Cooper THIS PERSON | 23 | Son | Pattern Maker | Kansas |
| 10 | Betty Ann Cooper | 21 | Daughter | New Worker | Kansas |
| 11 | Eugene Thiesler | 68 | Head | Laborer | Austria |
| 12 | Theresa Thiesler | 62 | Wife | — | Austria |
| 13 | Mary Thiesler | 13 | Sister | — | Kansas |
| 14 | Albert Hiers | 45 | Father | — | Kansas |
| 15 | Clyde Davidson | 28 | Head | Laborer | Kansas |
| 16 | Stella Davidson | 25 | Wife | — | Kansas |
| 17 | James Davidson | 6 | Son | — | Kansas |
| 18 | Raymond Davidson | 5 | Son | — | Kansas |
| 19 | Doris Davidson | 2 | Daughter | — | Kansas |
| 20 | Betty Jo Davidson | 1 | Daughter | — | Kansas |
| 21 | Charles Burch | 15 | Lodger | New Worker | Kansas |
| 22 | Samuel Hawk | 49 | Head | Carpenter | Kansas |
| 23 | Mary Hawk | 40 | Wife | — | Kansas |
| 24 | Joseph Hawk | 19 | Son | New Worker | Oklahoma |
| 25 | Ellen Hawk | 18 | Daughter | New Worker | Kansas |
| 26 | Marguerite Jackson | 23 | Daughter | New Worker | Kansas |
| 27 | Charles L. Jackson | 2 | Son | — | Iowa |
| 28 | Samuel Jr. Hawk | 25 | Son | Ccc | Kansas |
| 29 | Antony Parhorny | 84 | Head | — | Germany |
| 30 | Mollie Mcallister | 70 | Lodger | — | Kentucky |
| 31 | Le Roy Bowman | 45 | Head | Driver | Missouri |
| 32 | Bernice Bowman | 43 | Wife | — | Kansas |
| 33 | Betty L. Bowman | 16 | Daughter | New Worker | Kansas |
| 34 | Charles J. Bowman | 13 | Son | New Worker | Kansas |
| 35 | Le Roy Jr. Bowman | 11 | Son | — | Missouri |
| 36 | Susan Miller | 67 | Mother in Law | — | Kentucky |
| 37 | David Miller | 44 | Head | Laborer | Missouri |
| 38 | Nellie Miller | 42 | Wife | — | Kansas |
| 39 | Maxine Miller | 16 | Daughter | New Worker | Kansas |
| 40 | Pauline Miller | 14 | Daughter | New Worker | Kansas |
Pedigree Summary
James + 2 siblings
Gen 1 · 3 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)