JL
John Lyons — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this John Lyons across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents Catherine & Edward — first a son (b.~1911), then head of a 4-person household.
Age 29
b. ~1911
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Lyons |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago (city) |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Clerk |
| Industry | Grocery Store |
| Class of Worker | PW |
| Hours Worked | 50 |
| Income (1939) | 950 |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Clerk |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1911 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Catherine Lyons | Daughter | — | 30 | ~1910 |
| Catherine Lyons | Head | — | 60 | ~1880 |
| Thomas Lyons | Son | — | 27 | ~1913 |
| John Lyons | Son | — | 29 | ~1911 |
Census Appearances
1920
Cook, Illinois
Son, age 9
Cook, Illinois · implied b. ~1911 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lyons |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Son, age 19
Cook, Illinois · implied b. ~1911 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lyons |
| Given Name | John |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Photo engraver |
| Industry | Photo Co |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Son, age 29
Cook-County, Illinois · implied b. ~1911 — 4 household members
| Surname | Lyons |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago (city) |
| 1935 Residence (County) | Cook |
| Occupation | Clerk |
| Industry | Grocery Store |
| Class of Worker | PW |
| Hours Worked | 50 |
| Income (1939) | 950 |
| Highest Grade | No 8 |
| 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 John Lyons across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Catherine Lyons (~0.92 confidence) and father Edward Lyons (~0.92 confidence) and mother Anna Lyons (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Catherine Lyons
b. ~1880
Source mother
● Household
· direct · ~0.92
Father
Edward Lyons
b. ~1882
Source father
● Household
· direct · ~0.92
Mother
Anna Lyons
b. ~1882
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Lyons
Son · 1940 · age 29 · b. ~1911 · Illinois
★ You are viewing this record
Sibling
Catherine Lyons
Sibling · 1940 · age 30
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Lyons
Sibling · 1940 · age 27
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-t0627-00984-00706)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Lorraine Ricci | 5 | Daughter | — | Illinois |
| 42 | Frank Ricci | 25 | Son | Clerk | Michigan |
| 43 | Susan Ricci | 23 | Daughter | Laborer | Illinois |
| 44 | John Knapp | 28 | Head | Assembler | Illinois |
| 45 | Julia Knapp | 26 | Wife | Dealer | Illinois |
| 46 | Leonard Temps | 40 | Head | Machine Operator | Illinois |
| 47 | Stephen Wallak | 54 | Head | Shipping Clerk | Slovenia |
| 48 | Anna Wallak | 39 | Wife | Cabinet Maker | Slovenia |
| 49 | Catherine Lyons | 60 | Head | — | Irish Free State |
| 50 | Catherine Lyons | 30 | Daughter | Shipping Clerk | Illinois |
| 51 | John Lyons THIS PERSON | 29 | Son | Clerk | Illinois |
| 52 | Thomas Lyons | 27 | Son | Conductor | Illinois |
| 53 | Elmo Sini | 29 | Head | Laborer | Michigan |
| 54 | Gina Sini | 24 | Wife | Packer | Michigan |
| 55 | Attilio Vaciso | 64 | Head | Salesman | Italy |
| 56 | Theresa Vaciso | 56 | Wife | Flower Maker | Italy |
| 57 | Anna Stahl | 56 | Head | — | Germany |
| 58 | Otto Stahl | 29 | Son | Draughtsman | Illinois |
| 59 | Phillip Sieche | 64 | Head | Salesman | Illinois |
| 60 | Julia Sieche | 70 | Wife | — | New York |
| 61 | Angelo Lavalle | 34 | Head | Candy Maker | Illinois |
| 62 | Eleanor Lavalle | 24 | Wife | Manager | Illinois |
| 63 | George Jr. Phusko | 21 | Son | New Worker | Illinois |
| 64 | Eleanor Phusko | 18 | Daughter | — | Illinois |
| 65 | John Lupo | 53 | Head | Clerk | Italy |
| 66 | Celia Lupo | 53 | Wife | Tailor | Italy |
| 67 | Mary Lupo | 27 | Daughter | Secretary | Illinois |
| 68 | Georgiana Lupo | 12 | Daughter | — | Illinois |
| 69 | Ernest Crary | 30 | Head | Assembler | Kentucky |
| 70 | Edna Crary | 24 | Wife | — | Tennessee |
| 71 | Tillie Downs | 60 | Mother-in-law | — | Tennessee |
| 72 | Maria Moriana | 70 | Head | — | Slovakia |
| 73 | Joseph Moriana | 34 | Son | Watchman | Illinois |
| 74 | Joseph Samat | 51 | Head | Presser | Chicago, Ill. |
| 75 | Mary Samat | 47 | Wife | Charwoman | Chicago, Ill. |
| 76 | Emil Samat | 22 | Son | Truck Driver | Illinois |
| 77 | Joseph Schoeler | 34 | Head | Fireman | Illinois |
| 78 | Idella Schoeler | 37 | Wife | — | Iowa |
| 79 | Joseph Jr. Schoeler | 13 | Son | — | Illinois |
| 80 | Idell Schoeler | 10 | Daughter | — | Illinois |
Pedigree Summary
John + 2 siblings
Gen 1 · 3 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)