MF
Mary Finley — 1920 US Census Record
Model Tree available1920 United States Federal Census · Cook, Illinois
Our Model Tree links this Mary Finley across the 1920, 1930 and 1940 US Censuses in Cook, Illinois (XGBoost, ~Confirmed), with identified parents James & Mary — first a daughter (b.~1919), then head of a 3-person household.
Age 1
b. ~1919
Female
Daughter
Born: Illinois
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Cook, Illinois |
| Surname | Finley |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Additional Details | |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago 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.
3 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| James Finley | Head | — | 40 | ~1880 |
| Mary Finley | Spouse | — | 31 | ~1889 |
| Mary Finley | Daughter | — | 1 | ~1919 |
Census Appearances
1920
Cook, Illinois
Daughter, age 1
Cook, Illinois · implied b. ~1919 — 3 household members
| Surname | Finley |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Daughter, age 11
Cook, Illinois · implied b. ~1919 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Finley |
| Given Name | Marion E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| 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
Cook-County, Illinois
Daughter, age 21
Cook-County, Illinois · implied b. ~1919 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Finley |
| Given Name | Marion |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Occupation | Steno |
| Industry | Mail Order House |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 676 |
| Highest Grade | Hs 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 Finley across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father James Finley (~0.92 confidence) and mother Mary Finley (~0.92 confidence) and father Dennis Finley (~0.92 confidence) and mother Mary Finley (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Finley
b. ~1880
Source father
● Household
· direct · ~0.92
Mother
Mary Finley
b. ~1889
Source mother
● Household
· direct · ~0.92
Father
Dennis Finley
b. ~1897
Source father
● Household
· direct · ~0.92
Mother
Mary Finley
b. ~1899
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Finley
Daughter · 1920 · age 1 · b. ~1919 · Illinois
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1920 US Federal Census — Cook, Illinois
Open full size
1920 US Federal Census — Cook, Illinois
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu314unit:0405)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mary Stredpatsky | 43 | Wife | None | Illinois |
| 2 | Frank Pitella | 43 | Head | Cigarmaker | Bohemia |
| 3 | Lillian Pitella | 19 | Daughter | Clerk | Illinois |
| 4 | Francis Yuhnas | 25 | Head | Seamstress | Lithuania |
| 5 | Safe Slautin | 26 | Boarder | Lumberman | Lithuania |
| 6 | Mary Kotel | 75 | Head | None | Bohemia |
| 7 | Edward Kotel | 45 | Son | None | Illinois |
| 8 | John Joch | 37 | Head | Mechanic | Bohemia |
| 9 | Christina Joch | 33 | Wife | None | Illinois |
| 10 | John Joch | 10 | Son | — | Illinois |
| 11 | Blanche Joch | 8 | Daughter | — | Illinois |
| 12 | Andrew Radouski | 32 | Head | Punchpresser | Poland |
| 13 | Stella Radouski | 29 | Wife | None | Poland |
| 14 | Edmund Radouski | 8 | Son | — | Wisconsin |
| 15 | Irene Radouski | 6 | Daughter | — | Wisconsin |
| 16 | Mary Brokes | 38 | Head | Helper | Bohemia |
| 17 | Charles Brokes | 16 | Son | Flagman | Illinois |
| 18 | Bessie Brokes | 14 | Daughter | Packer | Illinois |
| 19 | Mary Brokes | 10 | Daughter | — | Illinois |
| 20 | Jerry Brokes | 8 | Son | — | Illinois |
| 21 | Carrie Brokes | 6 | Daughter | — | Illinois |
| 22 | Anna Brokes | 4 | Daughter | — | Illinois |
| 23 | Jacob Kopena | 86 | Head | None | Bohemia |
| 24 | Theresa Kopena | 76 | Wife | None | Bohemia |
| 25 | John Asplund | 62 | Head | Storekeeper | Sweden |
| 26 | Augusta Asplund | 59 | Wife | None | Sweden |
| 27 | Hazel Segal | 21 | Daughter | Operator | Illinois |
| 28 | Roland Segal | 2 | Grandchild | — | Illinois |
| 29 | Walter Asplund | 19 | Head | Shipping Clerk | Illinois |
| 30 | Mildred Asplund | 20 | Wife | Clerk | Illinois |
| 31 | Otto Lindner | 23 | Head | Machinist | Illinois |
| 32 | Charlotte Lindner | 20 | Wife | None | Illinois |
| 33 | Charlotte Lindner | 0 | Daughter | — | Illinois |
| 34 | Frank Yoch | 48 | Head | Molder | Bohemia |
| 35 | Anna Yoch | 42 | Wife | None | Bohemia |
| 36 | James Yoch | 26 | Son | Engraver | Illinois |
| 37 | John Yoch | 22 | Son | Weigher | Illinois |
| 38 | William Yoch | 18 | Son | Cattle Driver | Illinois |
| 39 | Lillian Yoch | 16 | Daughter | Chemistry | Illinois |
| 40 | Bernard Bund | 3 | Grandson | — | Illinois |
| 41 | Kazimiera Alerzanska | 39 | Head | Packer | Lithuania |
| 42 | Stasia Alerzanska | 32 | Wife | None | Lithuania |
| 43 | Nellie Slavlas | 24 | Boarder | Tailor | Lithuania |
| 44 | James Finley | 40 | Head | Inspector | Illinois |
| 45 | Mary Finley | 31 | Wife | None | Illinois |
| 46 | Mary Finley THIS PERSON | 1 | Daughter | — | Illinois |
| 47 | Carl Craiger | 55 | Head | Carpenter | Germany |
| 48 | Albina Craiger | 62 | Wife | None | Bohemia |
| 49 | Leo Craiger | 19 | Son | Machinist | Bohemia |
| 50 | Gus Krieger | 45 | Head | Dishwasher | Lithuania |
Related Census Records
Pedigree Summary
Mary
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)