JL
John Lyons — 1940 US Census Record
Model Tree available1940 United States Federal Census · Lake-County, Illinois
Our Model Tree links this John Lyons across the 1910, 1920, 1930 and 1940 US Censuses in Lake-County, Illinois (XGBoost, ~Confirmed), with identified parents Edward & Kate — first a head (b.~1905), then head of a 4-person household.
Age 35
b. ~1905
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Lake-County, Illinois |
| Surname | Lyons |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Waukegan City |
| 1935 Residence (County) | Lake |
| Additional Details | |
| Occupation | Journeyman Plumber |
| Industry | Plumbing |
| Class of Worker | PW |
| Hours Worked | 8 |
| Income (1939) | 348 |
| Highest Grade | Hs 2 |
| 1935 Residence | Same Place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Journeyman Plumber |
| Township / Ward | Waukegan City |
| Est. Birth Year | ~1905 |
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 |
|---|---|---|---|---|
| John Lyons | Head | — | 35 | ~1905 |
| Charles Lyons | Son | — | 1 | ~1939 |
| Gerald Lyons | Son | — | 5 | ~1935 |
| Barbara Lyons | Spouse | — | 29 | ~1911 |
Census Appearances
1910
Lake, Illinois
Son, age 5
Lake, Illinois · implied b. ~1905 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lyons |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Ireland |
| Mother's Birthplace | England |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1920
Lake, Illinois
Son, age 15
Lake, Illinois · implied b. ~1905 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lyons |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Ireland |
| Mother's Birthplace | England |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Lake, Illinois
Head, age 25
Lake, Illinois · implied b. ~1905 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lyons |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 25 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | England |
| Occupation | Plumber |
| Industry | Plumbing |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 55.00 |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Lake-County, Illinois
Head, age 35
Lake-County, Illinois · implied b. ~1905 — 4 household members
| Surname | Lyons |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Waukegan City |
| 1935 Residence (County) | Lake |
| Occupation | Journeyman Plumber |
| Industry | Plumbing |
| Class of Worker | PW |
| Hours Worked | 8 |
| Income (1939) | 348 |
| Highest Grade | Hs 2 |
| 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 John Lyons across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Edward Lyons (~0.92 confidence) and mother Kate Lyons (~0.92 confidence) and mother Catherine Lyons (~0.92 confidence) and father Edward Lyons (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Edward Lyons
b. ~1877
Source father
● Household
· direct · ~0.92
Mother
Kate Lyons
b. ~1877
Source mother
● Household
· direct · ~0.92
Mother
Catherine Lyons
b. ~1877
Source mother
● Household
· direct · ~0.92
Father
Edward Lyons
b. ~1878
Source father
● Household
· direct · ~0.92
This person
Anchor record
John Lyons
Head · 1940 · age 35 · b. ~1905 · 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 — Lake-County, Illinois
Open full size
1940 US Federal Census — Lake-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00830-00809)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Bridget Reardon | 85 | Head | — | Eire |
| 42 | Harold Reardon | 40 | Son | Clerk | Illinois |
| 43 | Frank Reardon | 37 | Son | Watchman | Illinois |
| 44 | Florence Reardon | 45 | Daughter-in-law | — | Illinois |
| 45 | John Lyons THIS PERSON | 35 | Head | Journeyman Plumber | Illinois |
| 46 | Barbara Lyons | 29 | Wife | — | Illinois |
| 47 | Gerald Lyons | 5 | Son | — | Illinois |
| 48 | Charles Lyons | 1 | Son | — | Illinois |
| 49 | William Fischer | 54 | Head | Millwright | Germany |
| 50 | Emily Fischer | 54 | Wife | — | Illinois |
| 51 | Jo William Fischer | 21 | Son | — | Illinois |
| 52 | Frances Fischer | 18 | Son | — | Illinois |
| 53 | Catherine Fischer | 16 | Daughter | — | Illinois |
| 54 | Emily Fischer | 14 | Daughter | — | Illinois |
| 55 | Patricia Fischer | 11 | Daughter | — | Illinois |
| 56 | Nicholas Bulger | 42 | Head | Florist | Illinois |
| 57 | Evelyn Bulger | 41 | Wife | — | Wisconsin |
| 58 | Norma Bulger | 15 | Daughter | — | Illinois |
| 59 | J. Margaret Bulger | 77 | Mother | — | Wisconsin |
| 60 | Charles Vouretos | 43 | Head | Carpenter | Holland |
| 61 | Eliza Vouretos | 42 | Wife | — | Canada |
| 62 | Isabel Vouretos | 15 | Daughter | — | Illinois |
| 63 | May Norma Vouretos | 8 | Daughter | — | Illinois |
| 64 | Earl Slocum | 38 | Head | Salesman | Illinois |
| 65 | Leona Slocum | 31 | Wife | — | Wisconsin |
| 66 | Normajeane Slocum | 7 | Daughter | — | Illinois |
| 67 | Marilyn Slocum | 6 | Daughter | — | Illinois |
| 68 | Darlene Slocum | 4 | Daughter | — | Illinois |
| 69 | Ernest Kennedy | 57 | Head | Laborer | Illinois |
| 70 | Bessie Kennedy | 54 | Wife | — | Indiana |
| 71 | Jessie Stevens | 40 | Head | Clerk | Wisconsin |
| 72 | Ethel Stevens | 13 | Daughter | — | Wisconsin |
| 73 | Harold Dibble | 28 | Head | Painter | Illinois |
| 74 | Irene Dibble | 28 | Wife | Stenographer | Illinois |
| 75 | Janice Dibble | 3 | Daughter | — | Illinois |
| 76 | N. B. Mayor Hackett | 72 | Head | Salesman | Wisconsin |
| 77 | Bertha Hackett | 65 | Wife | Saleswoman | Wisconsin |
| 78 | George Abramson | 49 | Head | Salesman | Wisconsin |
| 79 | Verla Abramson | 29 | Daughter | — | Wisconsin |
| 80 | Albert Wannenstill | 40 | Head | Trucker | Illinois |
Pedigree Summary
John
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)