JC
John Connell — 1940 US Census Record
Model Tree available1940 United States Federal Census · Kings-County, New York
Our Model Tree links this John Connell across the 1920, 1930 and 1940 US Censuses in Kings-County, New York (XGBoost, ~Confirmed), with identified parents Terrence & Katherine — first a son (b.~1912), then head of a 6-person household.
Age 28
b. ~1912
Male
Son
Born: New York
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Kings-County, New York |
| Surname | Connell |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | New York City |
| 1935 Residence (County) | Kings |
| Additional Details | |
| Occupation | Clerk |
| Industry | Brokerage Co |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 2000 |
| Highest Grade | No C2 |
| 1935 Residence | Same Place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Clerk |
| Township / Ward | New York City |
| Est. Birth Year | ~1912 |
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 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Catherine Connell | Daughter | — | 23 | ~1917 |
| Terence Connell | Son | — | 27 | ~1913 |
| John Connell | Son | — | 28 | ~1912 |
| Elizabeth Connell | Daughter | — | 31 | ~1909 |
| Terrence Connell | Head | — | 63 | ~1877 |
| Katherine Connell | Spouse | — | 63 | ~1877 |
Census Appearances
1920
Kings, New …
Son, age 6
Kings, New York · implied b. ~1914 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Connell |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1930
Kings, New …
Son, age 17
Kings, New York · implied b. ~1913 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Connell |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Kings-County, New …
Son, age 28
Kings-County, New York · implied b. ~1912 — 6 household members
| Surname | Connell |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | New York City |
| 1935 Residence (County) | Kings |
| Occupation | Clerk |
| Industry | Brokerage Co |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 2000 |
| Highest Grade | No C2 |
| 1935 Residence | Same Place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
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 Connell across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Terrence Connell (~0.92 confidence) and mother Katherine Connell (~0.92 confidence) and mother Della Connell (~0.92 confidence) and father John Connell (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Terrence Connell
b. ~1877
Source father
● Household
· direct · ~0.92
Mother
Katherine Connell
b. ~1879
Source mother
● Household
· direct · ~0.92
Mother
Della Connell
b. ~1887
Source mother
● Household
· direct · ~0.92
Father
John Connell
b. ~1888
Source father
● Household
· direct · ~0.92
This person
Anchor record
John Connell
Son · 1940 · age 28 · b. ~1912 · New York
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Sibling
Elizabeth Connell
Sibling · 1940 · age 31
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Connell
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Terence Connell
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 — Kings-County, New York
Open full size
1940 US Federal Census — Kings-County, New York
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02567-00482)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Nicholas King | 74 | Head | — | Jugoslavia |
| 2 | John King | 11 | Son | — | New York |
| 3 | Helen King | 8 | Daughter | — | New York |
| 4 | Anthony Federline | 49 | Head | Deck Hand | Jugoslavia |
| 5 | Annie Federline | 41 | Wife | — | Jugoslavia |
| 6 | John Federline | 17 | Son | Messenger Boy | New York |
| 7 | Catherine Federline | 16 | Daughter | — | New York |
| 8 | Anton Dapcich | 45 | Head | Rigger | Austria |
| 9 | Rose Dapcich | 35 | Wife | — | Austria |
| 10 | John Dapcich | 14 | Son | — | New York |
| 11 | Frank Domenich | 33 | Head | Painter | Porto Rico |
| 12 | Carmen Domenich | 29 | Wife | — | Porto Rico |
| 13 | Carmen Domenich | 9 | Daughter | — | New York |
| 14 | Emily Domenich | 2 | Daughter | — | New York |
| 15 | Eugene Giffin | 40 | Head | Marine Engineer | West Virginia |
| 16 | Verna Giffin | 35 | Wife | — | Finland |
| 17 | Ileana M Giffin | 1 | Daughter | — | New York |
| 18 | William O'Donnell | 49 | Head | Customs Officer | New Jersey |
| 19 | Gertrude O'Donnell | 49 | Wife | — | New York |
| 20 | Paula O'Donnell | 22 | Daughter | Teletype Opr | New Jersey |
| 21 | Rita O'Donnell | 20 | Daughter | Dress Maker | New Jersey |
| 22 | Dorothy O'Donnell | 18 | Daughter | — | New Jersey |
| 23 | Bernadette O'Donnell | 16 | Daughter | — | New Jersey |
| 24 | William O'Donnell | 12 | Son | — | New York |
| 25 | Joan O'Donnell | 10 | Daughter | — | New York |
| 26 | Robert O'Donnell | 10 | Son | — | New York |
| 27 | Maureen O'Donnell | 8 | Daughter | — | New York |
| 28 | John Costa | 50 | Head | Laborer | Italy |
| 29 | Mary Costa | 50 | Wife | — | Italy |
| 30 | Jack Costa | 20 | Son | Clerk Ass'T | New York |
| 31 | Juan Costa | 16 | Son | — | New York |
| 32 | Joseph Costa | 13 | Son | — | New York |
| 33 | Frank Costa | 8 | Son | — | New York |
| 34 | Extra Line Left In Error | None | — | — | — |
| 35 | Terrence Connell | 63 | Head | Trucking | Ireland |
| 36 | Katherine Connell | 63 | Wife | — | Ireland |
| 37 | Elizabeth Connell | 31 | Daughter | School Teacher | New York |
| 38 | John Connell THIS PERSON | 28 | Son | Clerk | New York |
| 39 | Terence Jr Connell | 27 | Son | Driver | New York |
| 40 | Catherine Connell | 23 | Daughter | Stenographer | New York |
Pedigree Summary
John + 3 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)