WF
William Flynn — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this William Flynn across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents William & Bertha — first a head (b.~1914), then head of a 3-person household.
Age 26
b. ~1914
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Flynn |
| Given Name | William J. Jr. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Employ. Mgr. |
| Industry | Can Mfg. |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1700 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Employ. Mgr. |
| Township / Ward | Chicago |
| Est. Birth Year | ~1914 |
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 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Judith Flynn | Daughter | — | ~1940 | |
| William Flynn | Head | — | 26 | ~1914 |
| Betty Flynn | Spouse | — | 25 | ~1915 |
Census Appearances
1920
Cook, Illinois
Son, age 5
Cook, Illinois · implied b. ~1915 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Flynn |
| Given Name | William Jr |
| Relationship to Head | Son |
| Sex | M |
| 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
Cook, Illinois
Son, age 16
Cook, Illinois · implied b. ~1914 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Flynn |
| Given Name | William J. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Home Owned/Rented | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Head, age 26
Cook-County, Illinois · implied b. ~1914 — 3 household members
| Surname | Flynn |
| Given Name | William J. Jr. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Occupation | Employ. Mgr. |
| Industry | Can Mfg. |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1700 |
| 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 William Flynn across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father William Flynn (~0.92 confidence) and mother Bertha Flynn (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Flynn
b. ~1883
Source father
● Household
· direct · ~0.92
Mother
Bertha Flynn
b. ~1885
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Flynn
Head · 1940 · age 26 · b. ~1914 · 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 — 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-t0627-00981-00794)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Michael M. Janov | 43 | Head | Med. Doctor | Poland |
| 42 | Idelle E. Janov | 34 | Wife | — | Illinois |
| 43 | Beverly F. Janov | 10 | Daughter | — | Illinois |
| 44 | Bernard A. Janov | 4 | Son | — | Illinois |
| 45 | Joseph J. Mcgrath | 65 | Head | Senior Clerk | Illinois |
| 46 | Mary B. Mcgrath | 53 | Wife | — | Missouri |
| 47 | Ann B. Kennedy | 69 | Head | — | Illinois |
| 48 | Loretta A. Downey | 38 | Niece | Teacher | Illinois |
| 49 | James E. Downey | 46 | Head | Postal Clerk | Illinois |
| 50 | Anna J. Downey | 43 | Wife | — | Eire |
| 51 | Anna M. Downey | 21 | Daughter | Secretary | Illinois |
| 52 | Helen J. Downey | 12 | Daughter | — | Illinois |
| 53 | William C. Bahlau | 31 | Head | Bartender | Illinois |
| 54 | Genevieve R. Bahlau | 26 | Wife | — | Illinois |
| 55 | William H. Bahlau | 0 | Son | — | Illinois |
| 56 | Joseph E. Fairman | 26 | Head | Truck Driver | Illinois |
| 57 | Paula H. Fairman | 22 | Wife | Cosmetician | Canada-French |
| 58 | Clara G. Fairman | 66 | Mother | — | Illinois |
| 59 | Raymond J. Putner | 39 | Head | Truck Driver | Illinois |
| 60 | Loretta C. Putner | 34 | Wife | — | Illinois |
| 61 | Neil J. Callahan | 32 | Brother-in-law | Bank Clerk | Illinois |
| 62 | David Parry | 70 | Head | Watch Repairman | Wales |
| 63 | Helena S. Parry | 71 | Wife | — | Wales |
| 64 | Alan G. Parry | 38 | Son | Watch Repairman | Wales |
| 65 | Ernest Chesquire | 40 | Head | Janitor | Belgium |
| 66 | Germaine M. Chesquire | 36 | Wife | — | Belgium |
| 67 | Robert L. Chesquire | 16 | Son | — | Belgium |
| 68 | George H. Chesquire | 7 | Son | — | Illinois |
| 69 | Mary K. Mustard | 71 | Head | — | Illinois |
| 70 | William J. Jr. Flynn THIS PERSON | 26 | Head | Employ. Mgr. | Illinois |
| 71 | Betty J. Flynn | 25 | Wife | — | Michigan |
| 72 | Judith J. Flynn | 0 | Daughter | — | Illinois |
| 73 | Herbert Almond | 34 | Head | Conductor | Canada-Eng. |
| 74 | Minnie Almond | 33 | Wife | — | Eire |
| 75 | Patricia M. Almond | 2 | Daughter | — | Illinois |
| 76 | Allan W. Schaay | 59 | Head | Trav. Salesman | Illinois |
| 77 | Margaret S. Schaay | 54 | Wife | — | Illinois |
| 78 | William J. Kirby | 43 | Head | Asst. Sales Super. | Illinois |
| 79 | Helen C. Kirby | 40 | Wife | — | Illinois |
| 80 | Alice C. Dasso | 55 | Head | — | Illinois |
Pedigree Summary
William
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)