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William Lang — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cooper-County, Missouri
Our Model Tree links this William Lang across the 1930 and 1940 US Censuses in Cooper-County, Missouri (XGBoost, ~Confirmed) — first a head (b.~1907), then head of a 6-person household.
Age 33
b. ~1907
Male
Head
Born: Missouri
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cooper-County, Missouri |
| Surname | Lang |
| Given Name | William, B. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Missouri |
| 1935 Residence (City) | Boonville Township |
| 1935 Residence (County) | Cooper |
| Additional Details | |
| Occupation | farmer |
| Industry | farm |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Occupation | Farmer |
| Township / Ward | Boonville Township |
| Est. Birth Year | ~1907 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Isabell Lang | Daughter | — | 7 | ~1933 |
| Kenneth Lang | Son | — | 5 | ~1935 |
| William Lang | Son | — | 9 | ~1931 |
| Margaret Lang | Spouse | — | 32 | ~1908 |
| William Lang | Head | — | 33 | ~1907 |
| Elizabeth Lang | Daughter | — | 2 | ~1938 |
Census Appearances
1930
Cooper, Missouri
Head, age 23
Cooper, Missouri · implied b. ~1907
●
Primary link
· ~Confirmed · 1 source
XGBoost
| Surname | Lang |
| Given Name | William B |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Married |
| Birthplace | Missouri |
| Age at First Marriage | 23 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | V1VV W |
| Can Read/Write | Yes |
| Home Owned/Rented | 10 |
| Veteran | R |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1940
Cooper-County, Missouri
Head, age 33
Cooper-County, Missouri · implied b. ~1907 — 6 household members
| Surname | Lang |
| Given Name | William, B. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Missouri |
| 1935 Residence (City) | Boonville Township |
| 1935 Residence (County) | Cooper |
| Occupation | farmer |
| Industry | farm |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| 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 William Lang across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Lang
Head · 1940 · age 33 · b. ~1907 · Missouri
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Cooper-County, Missouri
Open full size
1940 US Federal Census — Cooper-County, Missouri
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02100-00205)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Gilbert, W. Broomfield | 51 | Brother in law | Labor | Missouri |
| 42 | Grace, E. Seabert | 52 | Head | Farmer | Missouri |
| 43 | Antonia, K. Seabert | 50 | Wife | — | Missouri |
| 44 | Clem, J. Seabert | 20 | Son | Labor | Colorado |
| 45 | Dorothy, J. Seabert | 18 | Daughter | New Worker | Colorado |
| 46 | Theodore, B. Seabert | 16 | Son | — | Colorado |
| 47 | Delora Seabert | 13 | Daughter | — | Colorado |
| 48 | Margret Seabert | 11 | Daughter | — | Colorado |
| 49 | Robert, E. Seabert | 7 | Son | — | Kansas |
| 50 | James, H. Moore | 44 | Head | Labor | Missouri |
| 51 | Grace Moore | 48 | Sister | — | Missouri |
| 52 | William, B. Lang THIS PERSON | 33 | Head | Farmer | Missouri |
| 53 | Margaret, E. Lang | 32 | Wife | — | Missouri |
| 54 | William, A. Lang | 9 | Son | — | Missouri |
| 55 | Isabell, M. Lang | 7 | Daughter | — | Missouri |
| 56 | Kenneth, P. Lang | 5 | Son | — | Missouri |
| 57 | Elizabeth, A. Lang | 2 | Daughter | — | Missouri |
| 58 | George, W. Dunham | 65 | Head | Manager | Missouri |
| 59 | Ora Roberts | 69 | Head | Farmer | Missouri |
| 60 | George, A. Toler | 38 | Head | Caretaker | Missouri |
| 61 | Velma, D. Toler | 36 | Wife | — | Missouri |
| 62 | Jack, D. Toler | 8 | Son | — | Missouri |
| 63 | Lloyd, H. Bryan | 44 | Head | Farmer | Missouri |
| 64 | Julia, A. Bryan | 83 | Mother | — | Georgia |
| 65 | Laura Runkle | 61 | Servant | House Keeper | Missouri |
| 66 | Joseph, Jr. Dumasit | 49 | Head | Farmer | Missouri |
| 67 | Pearle, E. Dumasit | 43 | Wife | — | Missouri |
| 68 | Arline, P. Dumasit | 8 | Daughter | — | Missouri |
| 69 | Joseph, E. Wolfram | 57 | Head | Labor | Missouri |
| 70 | Amelia Wolfram | 47 | Wife | — | Missouri |
| 71 | Hadley, E. Wolfram | 10 | Son | — | Missouri |
| 72 | Ruth, A. Wolfram | 6 | Daughter | — | Missouri |
| 73 | Marvin, E. Wolfram | 4 | Son | — | Missouri |
| 74 | Joseph, Sr. Dumasit | 75 | Head | Farmer | Illinois |
| 75 | Mary, F. Dumasit | 68 | Wife | — | Missouri |
| 76 | Ben Stegner | 64 | Head | Farmer | Missouri |
| 77 | Mamie, E. Stegner | 67 | Wife | — | Missouri |
| 78 | Louise, M. Snider | 32 | Daughter | New Worker | Missouri |
| 79 | Karl, E. Snider | 9 | Grandson | — | Missouri |
| 80 | Geraldine, L. Snider | 3 | Granddaughter | — | Missouri |
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)