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Mary Wise — 1940 US Census Record
Model Tree available1940 United States Federal Census · Champaign-County, Illinois
Our Model Tree links this Mary Wise across the 1920, 1930 and 1940 US Censuses in Champaign-County, Illinois (XGBoost, ~Confirmed), with identified parents Geo & George — first a daughter (b.~1915), then head of a 4-person household.
Age 25
b. ~1915
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Champaign-County, Illinois |
| Surname | Wise |
| Given Name | Mary L. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Champaign City |
| 1935 Residence (County) | Champaign |
| Additional Details | |
| Occupation | Cashier |
| Industry | Drug Store |
| Class of Worker | PW |
| Hours Worked | 70 |
| Income (1939) | 300 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Cashier |
| Township / Ward | Champaign City |
| 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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Christine Wise | Spouse | — | 49 | ~1891 |
| Florence Wise | Daughter | — | 23 | ~1917 |
| George Wise | Head | — | 52 | ~1888 |
| Mary Wise | Daughter | — | 25 | ~1915 |
Census Appearances
1920
Champaign, Illinois
Daughter, age 5
Champaign, Illinois · implied b. ~1915 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Wise |
| Given Name | Mary G |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Champaign, Illinois
Daughter, age 14
Champaign, Illinois · implied b. ~1916 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Wise |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Champaign-County, Illinois
Daughter, age 25
Champaign-County, Illinois · implied b. ~1915 — 4 household members
| Surname | Wise |
| Given Name | Mary L. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Champaign City |
| 1935 Residence (County) | Champaign |
| Occupation | Cashier |
| Industry | Drug Store |
| Class of Worker | PW |
| Hours Worked | 70 |
| Income (1939) | 300 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 Wise across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Geo Wise (~0.92 confidence) and father George Wise (~0.92 confidence) and mother Christine Wise (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Geo Wise
b. ~1883
Source father
● Household
· direct · ~0.92
Father
George Wise
b. ~1888
Source father
● Household
· direct · ~0.92
Mother
Christine Wise
b. ~1891
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Wise
Daughter · 1940 · age 25 · b. ~1915 · Illinois
★ You are viewing this record
Sibling
Florence Wise
Sibling · 1940 · age 23
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 — Champaign-County, Illinois
Open full size
1940 US Federal Census — Champaign-County, Illinois
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-00765-00605)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Harriett Horrigan | 25 | Wife | Sales Lady | Iowa |
| 2 | Francis J. Leach | 25 | Head | Truck Driver | Illinois |
| 3 | Geraldine Leach | 19 | Wife | — | Illinois |
| 5 | Harry A. Wedding | 56 | Head | Telegraph Operator | Indiana |
| 6 | Ima D. Wedding | 52 | Wife | — | Indiana |
| 7 | George O. Wise | 52 | Head | Maintenance | Illinois |
| 8 | Christine Wise | 49 | Wife | — | Illinois |
| 9 | Mary L. Wise THIS PERSON | 25 | Daughter | Cashier | Illinois |
| 10 | Florence E. Wise | 23 | Daughter | Bookkeeper | Illinois |
| 11 | William Whelan | 28 | Head | Secretary | Illinois |
| 12 | Elizabeth D. Whelan | 23 | Wife | — | Illinois |
| 13 | Barbara A. Whelan | 3 | Daughter | — | Illinois |
| 14 | Michael W. Whelan | 1 | Son | — | Illinois |
| 15 | Waldemar Lenth | 46 | Head | Jeweler | Germany |
| 16 | Melina Lenth | 48 | Wife | — | Illinois |
| 17 | Elizabeth Lenth | 23 | Daughter | Sales Lady | Illinois |
| 18 | Helen Marie Lenth | 20 | Daughter | — | Illinois |
| 19 | Barbara Lenth | 17 | Daughter | — | Illinois |
| 20 | Waldemar Lenth | 15 | Son | — | Illinois |
| 21 | Reginald Richardson | 37 | Head | Professor | Canada |
| 22 | Louise Richardson | 34 | Wife | — | California |
| 24 | Frank H. Leasure | 69 | Head | Engineer | Indiana |
| 25 | Nora C. Leasure | 65 | Wife | — | Indiana |
| 26 | William J. Loach | 34 | Head | Labor | Illinois |
| 27 | Edith Lynch | 29 | Wife | — | Illinois |
| 28 | Patricia Lynch | 7 | Daughter | — | Illinois |
| 29 | William Lynch | 6 | Son | — | Illinois |
| 30 | Barbara Lynch | 1 | Daughter | — | Illinois |
| 31 | Earl R. Gulley | 34 | Head | Labor | Illinois |
| 32 | Ethel Gulley | 30 | Wife | — | Illinois |
| 33 | John Watchhorn | 68 | Head | Dealer | England |
| 34 | Mary Watchhorn | 66 | Wife | — | Illinois |
| 35 | Alva W. Mcgilton | 53 | Head | Painter | Illinois |
| 36 | Nell C. Mcgilton | 51 | Wife | — | Illinois |
| 37 | Nora Powell | 32 | Roomer | Office Work | Illinois |
| 38 | Carleton A. Rogers | 33 | Head | Metal Worker | Illinois |
| 39 | Lora L. Rogers | 32 | Wife | — | Indiana |
| 40 | Beverly Ann Rogers | 13 | Daughter | — | Illinois |
Pedigree Summary
Mary + 1 sibling
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)