MW
Mary White — 1940 US Census Record
Model Tree available1940 United States Federal Census · Kane-County, Illinois
Our Model Tree links this Mary White across the 1920, 1930 and 1940 US Censuses in Kane-County, Illinois (XGBoost, ~Confirmed), with identified parents Theodore & Margaret — first a spouse (b.~1900), then head of a 8-person household.
Age 40
b. ~1900
Female
Spouse
Born: Nebraska
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Kane-County, Illinois |
| Surname | White |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Nebraska |
| 1935 Residence (City) | Aurora |
| 1935 Residence (County) | Kane |
| Additional Details | |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
| Township / Ward | Aurora |
| Est. Birth Year | ~1900 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Angeline White | Daughter | — | 19 | ~1921 |
| Mary White | Daughter | — | 4 | ~1936 |
| Loraine White | Daughter | — | 8 | ~1932 |
| Alva White | Head | — | 42 | ~1898 |
| Raymond White | Son | — | 18 | ~1922 |
| Joseph White | Son | — | 15 | ~1925 |
| Donald White | Son | — | 10 | ~1930 |
| Mary White | Spouse | — | 40 | ~1900 |
Census Appearances
1920
Kane, Illinois
Daughter, age 20
Kane, Illinois · implied b. ~1900 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | White |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Married |
| Birthplace | Nebraska |
| Father's Birthplace | Luxemburg |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
1930
Kane, Illinois
Spouse, age 31
Kane, Illinois · implied b. ~1899 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | White |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Nebraska |
| Father's Birthplace | Luxemburg |
| Mother's Birthplace | Luxemburg |
| Can Read/Write | Yes |
| Mother Tongue | German |
| Veteran | No |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
1940
Kane-County, Illinois
Spouse, age 40
Kane-County, Illinois · implied b. ~1900 — 8 household members
| Surname | White |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Nebraska |
| 1935 Residence (City) | Aurora |
| 1935 Residence (County) | Kane |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
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 White across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Theodore Roeman (~0.92 confidence) and mother Margaret Roeman (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Theodore Roeman
b. ~1855
Source father
● Household
· direct · ~0.92
Mother
Margaret Roeman
b. ~1864
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary White
Spouse · 1940 · age 40 · b. ~1900 · Illinois
★ 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 — Kane-County, Illinois
Open full size
1940 US Federal Census — Kane-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00820-00241)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Sam Thomas | 7 | Head | — | Illinois |
| 42 | Ben Grass | 25 | Son-in-law | Office Work | Illinois |
| 43 | Nella Jean Grass | 24 | Daughter | Seamstress | Illinois |
| 44 | Guy O'Brien | 46 | Head | Mechanic | Illinois |
| 45 | Gertrude O'Brien | 39 | Wife | — | Illinois |
| 46 | Russell O'Brien | 14 | Son | — | Illinois |
| 47 | Catherine O'Brien | 12 | Daughter | — | Illinois |
| 48 | Charles O'Brien | 11 | Son | — | Illinois |
| 49 | Mary O'Brien | 9 | Daughter | — | Illinois |
| 50 | Donald O'Brien | 8 | Son | — | Illinois |
| 51 | Patrick O'Brien | 6 | Son | — | Illinois |
| 52 | James O'Brien | 4 | Son | — | Illinois |
| 53 | George O'Brien | 1 | Son | — | Illinois |
| 54 | Louis Balong | 31 | Head | Maintenance Man | West Virginia |
| 55 | Victoria Balong | 31 | Wife | — | Hungary |
| 56 | Mary Lou Balong | 4 | Daughter | — | Illinois |
| 57 | Denes Biro | 53 | Head | Stoker | Hungary |
| 58 | Denes Jr Biro | 25 | Son | Stoker | Illinois |
| 59 | Mike De Boe | 44 | Head | — | — |
| 60 | Michael Babb | 49 | Head | Jailer | Roumania |
| 61 | Rose Babb | 29 | Wife | — | Roumania |
| 62 | Michael Babb | 0 | Son | — | Illinois |
| 63 | Alva White | 42 | Head | Machinist | Illinois |
| 64 | Mary White THIS PERSON | 40 | Wife | — | Nebraska |
| 65 | Angeline White | 19 | Daughter | Cash-Keeper | Illinois |
| 66 | Raymond White | 18 | Son | — | Illinois |
| 67 | Joseph White | 15 | Son | — | Illinois |
| 68 | Donald White | 10 | Son | — | Illinois |
| 69 | Loraine White | 8 | Daughter | — | Illinois |
| 70 | Mary Lou White | 4 | Daughter | — | Illinois |
| 71 | — | None | — | — | — |
| 72 | M. Judea Sister | 42 | Head | Teacher | Wisconsin |
| 73 | M. Arntine Sister | 45 | Teacher | Teacher | Illinois |
| 74 | M. Petra Sister | 36 | Teacher | Teacher | Wisconsin |
| 75 | M. Anita Sister | 28 | Teacher | Teacher | Wisconsin |
| 76 | M. Ursula Sister | 34 | Cook | — | Minnesota |
| 77 | M. Allan Sister | 25 | Teacher | Teacher | Wisconsin |
| 78 | M. Roy Sister | 22 | Teacher | Teacher | Chicago |
| 79 | M. Paola Sister | 30 | Teacher | Teacher | Colorado |
| 80 | M. Olava Sister | 18 | Cook | — | Nebraska |
Pedigree Summary
Mary
Gen 1 · 2 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)