JL
John Lynch — 1930 US Census Record
Model Tree available1930 United States Federal Census · Cook, Illinois
Our Model Tree links this John Lynch across the 1910, 1920 and 1930 US Censuses in Cook, Illinois (XGBoost, ~Confirmed), with identified parents John & Frank — first a son (b.~1908), then head of a 6-person household.
Age 22
b. ~1908
Male
Son
Born: Illinois
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Cook, Illinois |
| Surname | Lynch |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Additional Details | |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1908 |
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.
6 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Eileen Lynch | Daughter | — | 8 | ~1922 |
| Mildred Lynch | Daughter | — | 12 | ~1918 |
| Bernice Lynch | Daughter | — | 19 | ~1911 |
| John Lynch | Head | — | 43 | ~1887 |
| John Lynch | Son | — | 22 | ~1908 |
| Helen Lynch | Spouse | — | 43 | ~1887 |
Census Appearances
1910
Cook, Illinois
Son, age 1
Cook, Illinois · implied b. ~1909 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lynch |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1920
Cook, Illinois
Son, age 11
Cook, Illinois · implied b. ~1909 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lynch |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Son, age 22
Cook, Illinois · implied b. ~1908 — 6 household members
| Surname | Lynch |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Veteran | No |
| 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 Lynch across 3 US Census years (1910, 1920 and 1930) in Cook, Illinois, using XGBoost record linkage. Identified parents: father John Lynch (~0.92 confidence) and father Frank Lynch (~0.92 confidence) and father John Lynch (~0.92 confidence) and mother Helen Lynch (~0.92 confidence) and mother Marie Lynch (~0.92 confidence) and mother Mary Lynch (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Lynch
b. ~1871
Source father
● Household
· direct · ~0.92
Father
Frank Lynch
b. ~1879
Source father
● Household
· direct · ~0.92
Father
John Lynch
b. ~1887
Source father
● Household
· direct · ~0.92
Mother
Helen Lynch
b. ~1887
Source mother
● Household
· direct · ~0.92
Mother
Marie Lynch
b. ~1882
Source mother
● Household
· direct · ~0.92
Mother
Mary Lynch
b. ~1881
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Lynch
Son · 1930 · age 22 · b. ~1908 · Illinois
★ You are viewing this record
Sibling
Bernice Lynch
Sibling · 1930 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mildred Lynch
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eileen Lynch
Sibling · 1930 · age 8
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
1930 US Federal Census — Cook, Illinois
Open full size
1930 US Federal Census — Cook, Illinois
Page Contents
50 people indexed on this census page (ia:1930:illinoiscensus00reel464:0639)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John Lynch | 43 | Head | Machinist | Illinois |
| 2 | Helen Lynch | 43 | Wife | — | Illinois |
| 3 | John Lynch THIS PERSON | 22 | Son | — | Illinois |
| 4 | Bernice Lynch | 19 | Daughter | — | Illinois |
| 5 | Mildred Lynch | 12 | Daughter | — | Illinois |
| 6 | Eileen Lynch | 8 | Daughter | — | Illinois |
| 7 | Walter Sustakoski | 23 | Head | Inspector | Illinois |
| 8 | Helen Sustakoski | 21 | Wife | — | Illinois |
| 9 | Walter Sustakoski | 1 | Son | — | Illinois |
| 10 | Mary Wagner | 58 | Head | Laborer | Germany |
| 11 | Anna Smith | 58 | Lodger | — | Germany |
| 12 | Frank Fischer | 58 | Head | Watchman | Germany |
| 13 | Minnie Fischer | 58 | Wife | — | Germany |
| 14 | William Schultz | 28 | Head | Salesman | Illinois |
| 15 | Mary Schultz | 22 | Wife | — | Poland |
| 16 | Mary Schultz | 1 | Daughter | — | Illinois |
| 17 | James Fee | 45 | Head | Lumberman | Illinois |
| 18 | Frances Fee | 40 | Wife | Operator | Illinois |
| 19 | Evelyn Fee | 16 | Daughter | — | Illinois |
| 20 | Lorraine Fee | 13 | Daughter | — | Illinois |
| 21 | Jimmy Fee | 3 | Son | — | Illinois |
| 22 | William Manty | 39 | Head | Mechanist | Germany |
| 23 | Lia Manty | 52 | Wife | — | Germany |
| 24 | George Winter | 37 | Head | Laborer | Illinois |
| 25 | Sophia Winter | 32 | Wife | — | Poland |
| 26 | George Winter | 12 | Son | — | Illinois |
| 27 | Evelyn Winter | 8 | Daughter | — | Illinois |
| 28 | Joe Krastowski | 53 | Head | Truck Driver | Austria |
| 29 | Stella Krastowski | 47 | Wife | — | Poland |
| 30 | John Brown | 41 | Head | Contractor | Illinois |
| 31 | Alice Brown | 38 | Wife | — | Illinois |
| 32 | Robert Brown | 11 | Son | — | Illinois |
| 33 | Ruth Brown | 9 | Daughter | — | Illinois |
| 34 | Virginia Brown | 7 | Daughter | — | Illinois |
| 35 | Raymond Brown | 4 | Son | — | Illinois |
| 36 | John Snyder | 79 | Lodger | Laborer | Germany |
| 37 | Clayton Mansfield | 21 | Lodger | Laborer | Pennsylvania |
| 38 | Mike Mika | 34 | Head | Packer | Poland |
| 39 | Kate Mika | 34 | Wife | Cook | Poland |
| 40 | Teddy Mika | 14 | Son | — | Illinois |
| 41 | Felix Mika | 13 | Son | — | Illinois |
| 42 | Edward Mika | 3 | Son | — | Illinois |
| 43 | John Mika | 1 | Son | — | Illinois |
| 44 | Joe Lahr | 35 | Head | Laborer | Poland |
| 45 | Katherine Lahr | 31 | Wife | — | Poland |
| 46 | Edward Lahr | 12 | Son | — | Illinois |
| 47 | Irene Lahr | 9 | Daughter | — | Illinois |
| 48 | Eleanor Lahr | 7 | Son | — | Illinois |
| 49 | Helen Lahr | 2 | Daughter | — | Illinois |
| 50 | Ludwig Novak | 32 | Head | Clerk | Poland |
Pedigree Summary
John + 3 siblings
Gen 1 · 6 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)