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Joseph Ryan — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Joseph Ryan across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents Mary & Mary — first a son (b.~1920), then head of a 4-person household.
Age 20
b. ~1920
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Ryan |
| Given Name | Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | New Worker |
| Hours Worked | 36 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same house |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | New Worker |
| Township / Ward | Chicago |
| Est. Birth Year | ~1920 |
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 Joseph | Age | Birth yr |
|---|---|---|---|---|
| Mary Ryan | Head | — | 59 | ~1881 |
| John Ryan | Son | — | 26 | ~1914 |
| Arthur Ryan | Son | — | 24 | ~1916 |
| Joseph Ryan | Son | — | 20 | ~1920 |
Census Appearances
1920
Cook, Illinois
Son, age
Cook, Illinois · implied b. ~1920 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ryan |
| Given Name | Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Son, age 9
Cook, Illinois · implied b. ~1921 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ryan |
| Given Name | Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | none |
| Can Read/Write | Yes |
| Home Owned/Rented | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Son, age 20
Cook-County, Illinois · implied b. ~1920 — 4 household members
| Surname | Ryan |
| Given Name | Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Occupation | New Worker |
| Hours Worked | 36 |
| Highest Grade | Hs 4 |
| 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 Joseph Ryan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Mary Ryan (~0.92 confidence) and mother Mary Ryan (~0.92 confidence) and father Edward Ryan (~0.92 confidence) and mother Mary Ryan (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Mary Ryan
b. ~1881
Source mother
● Household
· direct · ~0.92
Mother
Mary Ryan
b. ~1882
Source mother
● Household
· direct · ~0.92
Father
Edward Ryan
b. ~1883
Source father
● Household
· direct · ~0.92
Mother
Mary Ryan
b. ~1884
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Joseph Ryan
Son · 1940 · age 20 · b. ~1920 · Illinois
★ You are viewing this record
Sibling
John Ryan
Sibling · 1940 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Arthur Ryan
Sibling · 1940 · age 24
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-t0627-00982-00098)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Margaret Coffey | 85 | Mother | — | Illinois |
| 2 | William Flannery | 30 | Brother | Janitor | Illinois |
| 3 | Phillip O'Brien | 40 | Head | Supervisor | Illinois |
| 4 | Jeanette O'Brien | 37 | Wife | — | Illinois |
| 5 | Patricia A. O'Brien | 10 | Daughter | — | Illinois |
| 6 | James Finnegan | 70 | Head | Volunteer | Eire |
| 7 | Margaret Finnegan | 65 | Wife | — | Eire |
| 8 | Francis Finnegan | 34 | Son | Food Salesman | Illinois |
| 9 | Mary Finnegan | 31 | Daughter | Stenographer | Illinois |
| 10 | John A. Miller | 32 | Head | Lawyer | Illinois |
| 11 | Cecelia Miller | 30 | Wife | — | Illinois |
| 12 | Mary Miller | 4 | Daughter | — | Illinois |
| 13 | Margaret Walsh | 71 | Head | — | Eire |
| 14 | John L. Walsh | 43 | Son | Motorman | Illinois |
| 15 | James Walsh | 39 | Son | Supt. Of Information | Illinois |
| 16 | Edward Mccoy | 52 | Head | Book Maker | Illinois |
| 17 | Mary E. Mccoy | 47 | Wife | — | Illinois |
| 18 | Jack Martin | 76 | Head | — | Scotland |
| 19 | Anne Martin | 47 | Daughter | School Teacher | Illinois |
| 20 | Susan Martin | 43 | Daughter | School Teacher | Illinois |
| 21 | William S. Mcclenathen | 72 | Head | Secretary | Indiana |
| 22 | Sarah J. Mcclenathen | 60 | Wife | Night Operator | Missouri |
| 23 | Maude C. Mcclenathen | 46 | Daughter | — | Illinois |
| 24 | Mary E. Mcclenathen | 75 | Sister-in-law | — | Kansas |
| 25 | Charles F. Miller | 57 | Head | Salesman | Ohio |
| 26 | Anna Miller | 47 | Wife | — | Illinois |
| 27 | Marjorie Miller | 25 | Daughter | Sales Clerk | Illinois |
| 28 | Charles F. Miller | 23 | Son | Office Clerk | Illinois |
| 29 | Merle Kasten | 22 | Lodger | Packer | Illinois |
| 30 | John A. Stagg | 66 | Head | Lawyer | Louisiana |
| 31 | Marie S. Stagg | 59 | Wife | — | Canada-French |
| 32 | Rosa C. Stagg | 33 | Daughter | School Teacher | Illinois |
| 33 | John S. Stagg | 27 | Son | Bookkeeper | Illinois |
| 34 | Mary Ryan | 59 | Head | — | Eire |
| 35 | John P. Ryan | 26 | Son | Butcher | Illinois |
| 36 | Arthur Ryan | 24 | Son | Chauffeur | Illinois |
| 37 | Joseph Ryan THIS PERSON | 20 | Son | New Worker | Illinois |
| 38 | William A. Thornton | 49 | Head | Salesman | Illinois |
| 39 | Mary F. Thornton | 41 | Wife | — | Illinois |
| 40 | John A. Thornton | 14 | Son | — | Illinois |
Pedigree Summary
Joseph + 2 siblings
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 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)