JL
John Lindsay — 1940 US Census Record
Model Tree available1940 United States Federal Census · Lake-County, Illinois
Our Model Tree links this John Lindsay across the 1920, 1930 and 1940 US Censuses in Lake-County, Illinois (XGBoost, ~Confirmed), with identified parents John & John — first a son (b.~1916), then head of a 4-person household.
Age 24
b. ~1916
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Lake-County, Illinois |
| Surname | Lindsay |
| Given Name | John Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Waukegan City |
| 1935 Residence (County) | Lake |
| Additional Details | |
| Occupation | Apprentice Welder |
| Industry | auto parts mfg |
| Class of Worker | PW |
| Hours Worked | 32 |
| Income (1939) | 390 |
| Highest Grade | H 2 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Apprentice Welder |
| Township / Ward | Waukegan City |
| Est. Birth Year | ~1916 |
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 |
|---|---|---|---|---|
| Agnes Lindsay | Spouse | — | 39 | ~1901 |
| John Lindsay | Son | — | 24 | ~1916 |
| Alexander Lindsay | Son | — | 20 | ~1920 |
| John Lindsay | Head | — | 42 | ~1898 |
Census Appearances
Son, age 4
Lake, Illinois · implied b. ~1916 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lindsey |
| Given Name | John Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | none |
| Mother Tongue | Scotch |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Lake, Illinois
Son, age 14
Lake, Illinois · implied b. ~1916 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lindsay |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Lake-County, Illinois
Son, age 24
Lake-County, Illinois · implied b. ~1916 — 4 household members
| Surname | Lindsay |
| Given Name | John Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Waukegan City |
| 1935 Residence (County) | Lake |
| Occupation | Apprentice Welder |
| Industry | auto parts mfg |
| Class of Worker | PW |
| Hours Worked | 32 |
| Income (1939) | 390 |
| Highest Grade | H 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 Lindsay across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Lindsay (~0.92 confidence) and father John Lindsay (~0.92 confidence) and mother Agnes Lindsay (~0.92 confidence) and mother Agnes Lindsey (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Lindsay
b. ~1898
Source father
● Household
· direct · ~0.92
Father
John Lindsay
b. ~1888
Source father
● Household
· direct · ~0.92
Mother
Agnes Lindsay
b. ~1901
Source mother
● Household
· direct · ~0.92
Mother
Agnes Lindsey
b. ~1892
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Lindsay
Son · 1940 · age 24 · b. ~1916 · Illinois
★ You are viewing this record
Sibling
Alexander Lindsay
Sibling · 1940 · age 20
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 — 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-t0627-00830-00895)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Ada Hill | 12 | Daughter | — | Illinois |
| 42 | Ralph Hill | 10 | Son | — | Illinois |
| 43 | St. John Hill | 85 | Father | — | Ireland |
| 44 | John Lindsay | 42 | Head | Water Meter Reader | Scotland |
| 45 | Agnes Lindsay | 39 | Wife | — | Scotland |
| 46 | John Jr. Lindsay THIS PERSON | 24 | Son | Apprentice Welder | Illinois |
| 47 | Alexander Lindsay | 20 | Son | New Worker | Illinois |
| 48 | Donald Gordon | 41 | Head | Gardner | Scotland |
| 49 | Margaret Gordon | 39 | Wife | General Helper | Scotland |
| 50 | Barbara Gordon | 14 | Daughter | New Worker | Illinois |
| 51 | Marion Gordon | 13 | Daughter | — | Illinois |
| 52 | Helen Gordon | 11 | Daughter | — | Illinois |
| 53 | Jean Gordon | 9 | Daughter | — | Illinois |
| 54 | Grace Gordon | 6 | Daughter | — | Illinois |
| 55 | Billie Gordon | 3 | Son | — | Illinois |
| 56 | Gilbert Cousineau | 46 | Head | Foreman | New York |
| 57 | Martha Cousineau | 49 | Wife | — | Illinois |
| 58 | Alfred Kauppila | 32 | Head | Service Man | Michigan |
| 59 | Jennie Kauppila | 30 | Wife | — | Finland |
| 60 | Jean Kauppila | 3 | Daughter | — | Michigan |
| 61 | Gabrielle Mckenzie | 43 | Head | Assistant Dietician | France |
| 62 | Robert C. Mckenzie | 27 | Son | Laborer | Illinois |
| 63 | Roger A. Mckenzie | 12 | Son | — | Illinois |
| 64 | Louise Vandemeleh | 70 | Mother | — | France |
| 65 | Erhard Holmjren | 44 | Head | Milk Man | Sweden |
| 66 | Alma Holmjren | 45 | Wife | — | Sweden |
| 67 | Gosta Holmjren | 20 | Son | Inspector | Sweden |
| 68 | Asta Holmjren | 18 | Daughter | New Worker | Sweden |
| 69 | Erwin Angerman | 47 | Head | Scale Inspector | Wisconsin |
| 70 | Venita Angerman | 45 | Wife | — | Wisconsin |
| 71 | Vanita E. Angerman | 21 | Daughter | — | Iowa |
| 72 | Dorothy Angerman | 19 | Daughter | Book Keeper | Illinois |
| 73 | Robert Angerman | 12 | Son | — | Illinois |
| 74 | Chester Decker | 39 | Head | Steam Fitter | Indiana |
| 75 | Myrtle Decker | 40 | Wife | — | Kentucky |
| 76 | Chester Jr. Decker | 11 | Son | — | Illinois |
| 77 | Harold Vaughn | 43 | Head | Engineer | Illinois |
| 78 | Emily Vaughn | 36 | Wife | Operator | Illinois |
| 79 | Harold Vaughn | 18 | Son | New Worker | Illinois |
| 80 | Frances Vaughn | 19 | Daughter | New Worker | Indiana |
Related Census Records
Pedigree Summary
John + 1 sibling
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)