JL
John Lynch — 1940 US Census Record
Model Tree available1940 United States Federal Census · Essex-County, New Jersey
Our Model Tree links this John Lynch across the 1920, 1930 and 1940 US Censuses in Essex-County, New Jersey (XGBoost, ~Confirmed), with identified parents James & Agnes — first a son (b.~1910), then head of a 4-person household.
Age 30
b. ~1910
Male
Son
Born: New Jersey
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Essex-County, New Jersey |
| Surname | Lynch |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | West Orange Town |
| 1935 Residence (County) | Essex |
| Additional Details | |
| Occupation | Elevator Operator |
| Industry | Apt House |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 936 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | Elevator Operator |
| Township / Ward | West Orange Town |
| Est. Birth Year | ~1910 |
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 Lynch | Head | — | 57 | ~1883 |
| John Lynch | Son | — | 30 | ~1910 |
| Patrick Lynch | Son | — | 28 | ~1912 |
| Timothy Lynch | Son | — | 20 | ~1920 |
Census Appearances
1920
Essex, New …
Son, age 11
Essex, New Jersey · implied b. ~1909 — 7 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 | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1930
Essex, New …
Son, age 20
Essex, New Jersey · implied b. ~1910 — 15 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lynch |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Essex-County, New …
Son, age 30
Essex-County, New Jersey · implied b. ~1910 — 4 household members
| Surname | Lynch |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | West Orange Town |
| 1935 Residence (County) | Essex |
| Occupation | Elevator Operator |
| Industry | Apt House |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 936 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
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 (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father James Lynch (~0.92 confidence) and mother Agnes Lynch (~0.92 confidence) and mother Margaret Lynch (~0.92 confidence) and mother Mary Lynch (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Lynch
b. ~1870
Source father
● Household
· direct · ~0.92
Mother
Agnes Lynch
b. ~1883
Source mother
● Household
· direct · ~0.92
Mother
Margaret Lynch
b. ~1875
Source mother
● Household
· direct · ~0.92
Mother
Mary Lynch
b. ~1872
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Lynch
Son · 1940 · age 30 · b. ~1910 · New Jersey
★ You are viewing this record
Sibling
Patrick Lynch
Sibling · 1940 · age 28
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Timothy Lynch
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 — Essex-County, New Jersey
Open full size
1940 US Federal Census — Essex-County, New Jersey
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02341-00454)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Agnes Lynch | 57 | Head | — | New Jersey |
| 2 | John Lynch THIS PERSON | 30 | Son | Elevator Operator | New Jersey |
| 3 | Patrick Lynch | 28 | Son | Tuber | New Jersey |
| 4 | Timothy Lynch | 20 | Son | Machine Operator | New Jersey |
| 5 | Arthur Waddington | 22 | Head | Moulder | New Jersey |
| 6 | Anita Waddington | 21 | Wife | Stenographer | New Jersey |
| 7 | Thomas Tolun | 51 | Head | Factory Worker | Lithuania |
| 8 | Elizabeth Tolun | 47 | Wife | — | Lithuania |
| 9 | John Tolun | 20 | Son | Driver | New Jersey |
| 10 | Albert Standish | 18 | Lodger | Sprayer | New Jersey |
| 11 | Marie Slappe | 51 | Head | Cook | Norway |
| 12 | John Slappe | 24 | Son | Stock Clerk | New York |
| 13 | Raymond Slappe | 22 | Son | — | New York |
| 14 | Walter Slappe | 21 | Son | — | New York |
| 15 | Ella Slappe | 21 | Daughter-in-law | Beautician | New Jersey |
| 16 | Jack Malone | 24 | Head | Salesman | Ohio |
| 17 | Dorothy Malone | 22 | Wife | Stenographer | New Jersey |
| 18 | Thomas Malone | 0 | Son | — | New Jersey |
| 19 | Mary Burns | 80 | Head | — | Eire |
| 20 | Robert Burns | 40 | Son | Inspector | New Jersey |
| 21 | Rose Ryan | 53 | Daughter | Waitress | New Jersey |
| 22 | Mary Ryan | 29 | Granddaughter | Clerk | New Jersey |
| 23 | Joan Ryan | 26 | Granddaughter | Clerk | New Jersey |
| 24 | Veronica Ryan | 22 | Granddaughter | Clerk | New Jersey |
| 25 | James Burns | 53 | Head | Mechanic | New Jersey |
| 26 | Helen Burns | 52 | Wife | — | Eire |
| 27 | Madeline Burns | 20 | Daughter | Clerk | New Jersey |
| 28 | Eugene Burns | 14 | Son | — | New Jersey |
| 29 | James T. Burns | 24 | Son | Manager | New Jersey |
| 30 | Margaret Burns | 20 | Daughter | — | New Jersey |
| 31 | William Bachman | 42 | Head | Mechanic | Pennsylvania |
| 32 | Beatrice Bachman | 39 | Wife | — | Pennsylvania |
| 33 | Arthur Bachman | 16 | Son | — | New Jersey |
| 34 | Stanley Bachman | 4 | Son | — | New Jersey |
| 35 | Walter Hinds | 66 | Father-in-law | — | Pennsylvania |
| 36 | Etta Hinds | 65 | Mother-in-law | — | Pennsylvania |
| 37 | Mary Marnell | 63 | Head | — | Eire |
| 38 | Thomas Marnell | 40 | Son | Clerk | New Jersey |
| 39 | Charles Marnell | 37 | Son | Sprinkler | New Jersey |
| 40 | William Marnell | 36 | Son | Engineer | New Jersey |
Pedigree Summary
John + 2 siblings
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)