MW
Marion White — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Marion White across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents Michael & Michael — first a daughter (b.~1910), then head of a 4-person household.
Age 30
b. ~1910
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | White |
| Given Name | Marion |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Librarian |
| Industry | Library |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1500 |
| Highest Grade | C 5 |
| 1935 Residence | Same House |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Librarian |
| Township / Ward | Chicago |
| Est. Birth Year | ~1910 |
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 Marion | Age | Birth yr |
|---|---|---|---|---|
| Anna White | Spouse | — | 61 | ~1879 |
| Raymond White | Son | — | 25 | ~1915 |
| Marion White | Daughter | — | 30 | ~1910 |
| Michael White | Head | — | 63 | ~1877 |
Census Appearances
1920
Cook, Illinois
Daughter, age 11
Cook, Illinois · implied b. ~1909 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | White |
| Given Name | Marion |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Daughter, age 21
Cook, Illinois · implied b. ~1909 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | White |
| Given Name | Marion |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Daughter, age 30
Cook-County, Illinois · implied b. ~1910 — 4 household members
| Surname | White |
| Given Name | Marion |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Occupation | Librarian |
| Industry | Library |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1500 |
| Highest Grade | C 5 |
| 1935 Residence | Same House |
| 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 Marion White across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Michael White (~0.92 confidence) and father Michael White (~0.92 confidence) and father Michael White (~0.92 confidence) and mother Anna White (~0.92 confidence) and mother Anna White (~0.92 confidence) and mother Anna White (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Michael White
b. ~1882
Source father
● Household
· direct · ~0.92
Father
Michael White
b. ~1877
Source father
● Household
· direct · ~0.92
Father
Michael White
b. ~1874
Source father
● Household
· direct · ~0.92
Mother
Anna White
b. ~1873
Source mother
● Household
· direct · ~0.92
Mother
Anna White
b. ~1879
Source mother
● Household
· direct · ~0.92
Mother
Anna White
b. ~1884
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Marion White
Daughter · 1940 · age 30 · b. ~1910 · Illinois
★ You are viewing this record
Sibling
Raymond White
Sibling · 1940 · age 25
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 — Cook-County, Illinois
Open full size
1940 US Federal Census — Cook-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01021-00573)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Frances Aszman | 17 | Daughter | — | Florida |
| 42 | Fred R Poterberg | 44 | Head | Merchant | Illinois |
| 43 | Elsie L Poterberg | 41 | Wife | Manager | Sweden |
| 44 | Betty J Poterberg | 15 | Daughter | — | Germany |
| 45 | Lois A Poterberg | 13 | Daughter | — | Illinois |
| 46 | Anna Poterberg | 66 | Mother | — | Illinois |
| 47 | Harriet Parker | 44 | Sister | Clerk | Illinois |
| 48 | Thomas E Parker | 13 | Nephew | — | Illinois |
| 49 | Fred Vonckx | 57 | Head | Plasterer | Belgium |
| 50 | Antonia Vonckx | 57 | Wife | — | Belgium |
| 51 | Adele Vonckx | 35 | Daughter | Private Secretary | Belgium |
| 52 | Herman L Vonckx | 30 | Son | Clerk | Illinois |
| 53 | Dorothy Vonckx | 23 | Daughter | Machine Operator | Illinois |
| 54 | Rosalie Vonckx | 21 | Daughter | Comptometer Operator | Illinois |
| 55 | Bernard Fitzgerald | 38 | Head | Lawyer | Massachusetts |
| 56 | Clara Fitzgerald | 28 | Wife | — | Missouri |
| 57 | Bernard Fitzgerald | 4 | Son | — | Illinois |
| 58 | Mary A Fitzgerald | 3 | Daughter | — | Illinois |
| 59 | Anne M Fitzgerald | 1 | Daughter | — | Illinois |
| 60 | Fannie Harris | 34 | Maid | Maid | Louisiana |
| 61 | Michael B White | 63 | Head | Motorman | Irish Free State |
| 62 | Anna White | 61 | Wife | — | Irish Free State |
| 63 | Marion White THIS PERSON | 30 | Daughter | Librarian | Illinois |
| 64 | Raymond White | 25 | Son | Teacher | Illinois |
| 65 | Albe Hirsch | 58 | Head | Head Shipper | Illinois |
| 66 | Dora Hirsch | 67 | Sister | — | Illinois |
| 67 | Minnie Hirsch | 63 | Sister | — | Illinois |
| 68 | James Harbison | 45 | Head | Biller | Northern Ireland |
| 69 | Jean Harbison | 42 | Wife | — | Northern Ireland |
| 70 | Elsie Harbison | 15 | Daughter | — | Illinois |
| 71 | Doris Harbison | 10 | Daughter | — | Illinois |
| 72 | James Boris | 59 | Head | Chef | Greece |
| 73 | Rena Boris | 49 | Wife | — | Greece |
| 74 | Sam Boris | 20 | Son | Clerk | Michigan |
| 75 | Nicholas Boris | 19 | Son | Attendant | Michigan |
| 76 | Maxine Boris | 16 | Daughter | — | Michigan |
| 77 | Fred Keyworth | 75 | Head | Dishwasher | Canada French |
| 78 | Annie Keyworth | 73 | Wife | — | Nova Scotia |
| 79 | Albert Keyworth | 53 | Son | Watchman | Canada French |
| 80 | George Keyworth | 48 | Son | Painter | Canada French |
Pedigree Summary
Marion + 1 sibling
Gen 1 · 6 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)