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John Blake — 1940 US Census Record
Model Tree available1940 United States Federal Census · Warren-County, Missouri
Our Model Tree links this John Blake across the 1920, 1930 and 1940 US Censuses in Warren-County, Missouri (XGBoost, ~Confirmed), with identified parents J & John — first a head (b.~1915), then head of a 4-person household.
Age 25
b. ~1915
Male
Head
Born: Missouri
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Warren-County, Missouri |
| Surname | Blake |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Married |
| Birthplace | Missouri |
| 1935 Residence (City) | Hallenton |
| 1935 Residence (County) | Warren |
| Additional Details | |
| Occupation | Miner |
| Industry | Clay Products |
| Class of Worker | OA |
| Hours Worked | 40 |
| Highest Grade | No 8 |
| 1935 Residence | Missouri |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Occupation | Miner |
| Township / Ward | Pinckney |
| Est. Birth Year | ~1915 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Joyce Blake | Daughter | — | 1 | ~1939 |
| Helen Blake | Spouse | — | 20 | ~1920 |
| John Blake | Head | — | 25 | ~1915 |
| Harry Blake | Other | — | 32 | ~1908 |
Census Appearances
1920
Warren, Missouri
Son, age 4
Warren, Missouri · implied b. ~1916 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Blake |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Can Read | No |
| Can Write | No |
| Speaks English | Yes |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1930
Warren, Missouri
Son, age 15
Warren, Missouri · implied b. ~1915 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Blake |
| Given Name | John O. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Can Read/Write | Yes |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1940
Warren-County, Missouri
Head, age 25
Warren-County, Missouri · implied b. ~1915 — 4 household members
| Surname | Blake |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Married |
| Birthplace | Missouri |
| 1935 Residence (City) | Hallenton |
| 1935 Residence (County) | Warren |
| Occupation | Miner |
| Industry | Clay Products |
| Class of Worker | OA |
| Hours Worked | 40 |
| Highest Grade | No 8 |
| 1935 Residence | Missouri |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
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 John Blake across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father J Blake (~0.92 confidence) and father John Blake (~0.92 confidence) and mother Lizzie Blake (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
J Blake
b. ~1876
Source father
● Household
· direct · ~0.92
Father
John Blake
b. ~1876
Source father
● Household
· direct · ~0.92
Mother
Lizzie Blake
b. ~1888
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Blake
Head · 1940 · age 25 · b. ~1915 · Missouri
★ 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 — Warren-County, Missouri
Open full size
1940 US Federal Census — Warren-County, Missouri
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02162-00974)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Louis Nothage | 50 | Head | Farmer | Missouri |
| 42 | Birdie Nothage | 45 | Wife | — | Missouri |
| 43 | James Nothage | 18 | Son | Teacher | Missouri |
| 44 | Carly Nothage | 11 | Son | — | Missouri |
| 45 | John Nothage | 56 | Head | Farmer | Missouri |
| 46 | Annie Nothage | 54 | Wife | — | Missouri |
| 47 | Eunice Nothage | 17 | Daughter | — | Missouri |
| 48 | Wesley Nothage | 47 | Head | Farmer | Missouri |
| 49 | Clara Nothage | 44 | Wife | — | Illinois |
| 50 | Ruth Nothage | 16 | Daughter | — | Missouri |
| 51 | Donald Nothage | 11 | Son | — | Missouri |
| 52 | Dick Humphrey | 70 | Head | Farmer | Missouri |
| 53 | Maudie Humphrey | 72 | Wife | — | Missouri |
| 54 | Marvin Brakemeyer | 23 | Head | Farmer | Missouri |
| 55 | Dorothy Brakemeyer | 24 | Wife | — | Missouri |
| 56 | Emmanuel Brakemeyer | 1 | Son | — | Missouri |
| 57 | Wm E Hapke | 78 | Lodger | — | Missouri |
| 58 | John W Lehmann | 63 | Head | Farmer | Missouri |
| 59 | Louis Schmeyer | 69 | Head | Farmer | Missouri |
| 60 | Johanna Schmeyer | 54 | Wife | — | Missouri |
| 61 | John Schmeyer | 28 | Son | Carpenter Helper | Missouri |
| 62 | Louis A Schmeyer | 12 | Son | — | Missouri |
| 63 | George Roewe | 47 | Head | Farmer | Missouri |
| 64 | Alfred Baurichter | 47 | Head | Farmer | Missouri |
| 65 | Malinda Baurichter | 60 | Sister | — | Missouri |
| 66 | Otto Kloe | 45 | Head | Farmer | Missouri |
| 67 | Rosie Kloe | 40 | Wife | — | Missouri |
| 68 | Mildred Kloe | 17 | Daughter | New Worker | Missouri |
| 69 | Louis Kloe | 14 | Son | New Worker | Missouri |
| 70 | Mary J Kloe | 10 | Daughter | — | Missouri |
| 71 | Dolores J Kloe | 3 | Daughter | — | Missouri |
| 72 | Arthur Roewe | 35 | Head | Farmer | Missouri |
| 73 | Edna Roewe | 31 | Wife | — | Missouri |
| 74 | Zelda Roewe | 3 | Daughter | — | Missouri |
| 75 | Emma Hauser | 81 | Head | — | Missouri |
| 76 | John Blake THIS PERSON | 25 | Head | Miner | Missouri |
| 77 | Helen Blake | 20 | Wife | — | Missouri |
| 78 | Joyce Blake | 1 | Daughter | — | Missouri |
| 79 | Harry Blake | 32 | Brother | Miner | Missouri |
| 80 | Ed Blake | 66 | Head | Farmer | Missouri |
Pedigree Summary
John
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)