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Mary Lang — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Marathon-County, Wisconsin
Our Model Tree links this Mary Lang across the 1930 and 1940 US Censuses in Marathon-County, Wisconsin (XGBoost, ~Confirmed) — first a daughter (b.~1919), then head of a 11-person household.
Age 21
b. ~1919
Female
Daughter
Born: Wisconsin
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Marathon-County, Wisconsin |
| Surname | Lang |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Wausau City |
| 1935 Residence (County) | Marathon |
| Additional Details | |
| Occupation | Teacher |
| Industry | Charity |
| Class of Worker | NP |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
| Occupation | Teacher |
| Township / Ward | Wausau City |
| Est. Birth Year | ~1919 |
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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Ruth Lang | Daughter | — | 18 | ~1922 |
| Kathryn Lang | Daughter | — | 8 | ~1932 |
| Ruth Lang | Son | — | 4 | ~1936 |
| Mary Lang | Spouse | — | 47 | ~1893 |
| Esther Lang | Daughter | — | 24 | ~1916 |
| Edwin Lang | Son | — | 16 | ~1924 |
| Lawrence Lang | Son | — | 23 | ~1917 |
| Franklin Lang | Son | — | 22 | ~1918 |
| Mary Lang | Daughter | — | 21 | ~1919 |
| Frederick Lang | Son | — | 19 | ~1921 |
| Rose Lang | Daughter | — | 18 | ~1922 |
Census Appearances
1930
Marathon, Wisconsin
Daughter, age 11
Marathon, Wisconsin · implied b. ~1919 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lang |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Wisconsin |
| Can Read/Write | Yes |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1940
Marathon-County, Wisconsin
Daughter, age 21
Marathon-County, Wisconsin · implied b. ~1919 — 11 household members
| Surname | Lang |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Wausau City |
| 1935 Residence (County) | Marathon |
| Occupation | Teacher |
| Industry | Charity |
| Class of Worker | NP |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
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 Mary Lang across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Lang
Daughter · 1940 · age 21 · b. ~1919 · Wisconsin
★ You are viewing this record
Sibling
Frederick Lang
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Lang
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Esther Lang
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Franklin Lang
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lawrence Lang
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Lang
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edwin Lang
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Kathryn Lang
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rose Lang
Sibling · 1940 · age 18
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 — Marathon-County, Wisconsin
Open full size
1940 US Federal Census — Marathon-County, Wisconsin
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04497-00769)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Mary Lang | 47 | Wife | — | Wisconsin |
| 42 | Esther Lang | 24 | Daughter | Housework | Wisconsin |
| 43 | Lawrence Lang | 23 | Son | Laborer | Wisconsin |
| 44 | Franklin Lang | 22 | Son | Laborer | Wisconsin |
| 45 | Mary Lang THIS PERSON | 21 | Daughter | Teacher | Wisconsin |
| 46 | Frederick Lang | 19 | Son | Laborer | Wisconsin |
| 47 | Rose Lang | 18 | Daughter | — | Wisconsin |
| 48 | Ruth Lang | 18 | Daughter | — | Wisconsin |
| 49 | Edwin Lang | 16 | Son | — | Wisconsin |
| 50 | Kathryn Lang | 8 | Daughter | — | Wisconsin |
| 51 | Ruth Lang | 4 | Son | — | Wisconsin |
| 52 | Daniel Schoepke | 44 | Head | Laborer | Minnesota |
| 53 | Elizabeth Schoepke | 43 | Wife | — | Minnesota |
| 54 | Leroy Schoepke | 14 | Son | — | Minnesota |
| 55 | Galen Schoepke | 11 | Son | — | Minnesota |
| 56 | Melvin Zahn | 25 | Head | Laborer | Wisconsin |
| 57 | Florence Zahn | 22 | Wife | Laborer | Wisconsin |
| 58 | Verna Hager | 14 | Lodger | — | Wisconsin |
| 59 | James Schlais | 36 | Head | Truck Driver | Wisconsin |
| 60 | Helen Schlais | 33 | Wife | General Off. | Wisconsin |
| 61 | — | None | — | — | — |
| 62 | Theodore Dattman | 46 | Head | Machinist | Wisconsin |
| 63 | Mae Dattman | 45 | Wife | — | Wisconsin |
| 64 | Dolores Dattman | 16 | Daughter | — | Wisconsin |
| 65 | Charlotte Dattman | 12 | Daughter | — | Wisconsin |
| 66 | Gilbert Hintz | 21 | Head | Driller | Wisconsin |
| 67 | Mable Hintz | 30 | Wife | — | Wisconsin |
| 68 | Lloyd Progait | 33 | Head | Operator | Wisconsin |
| 69 | Marjorie Progait | 31 | Wife | — | Washington |
| 70 | John Progait | 11 | Son | — | Washington |
| 71 | William Progait | 9 | Son | — | Wisconsin |
| 72 | Marie Progait | 1 | Daughter | — | Wisconsin |
| 73 | Nelson Fagenkopf | 26 | Head | Laborer | Wisconsin |
| 74 | Sue Fagenkopf | 28 | Wife | — | Iowa |
| 75 | James Fagenkopf | 11 | Son | — | Wisconsin |
| 76 | John Kiesler | 40 | Head | Truck Driver | Wisconsin |
| 77 | June Kiesler | 40 | Wife | — | Wisconsin |
| 78 | Jean Kiesler | 19 | Daughter | — | Wisconsin |
| 79 | John Kiesler | 17 | Son | — | Wisconsin |
| 80 | Noel Kiesler | 15 | Son | — | Wisconsin |
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)