JW
John Welsh — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Kings-County, New York
Our Model Tree links this John Welsh across the 1930 and 1940 US Censuses in Kings-County, New York (XGBoost, ~Confirmed) — first a son (b.~1930), then head of a 6-person household.
Age 10
b. ~1930
Male
Son
Born: New York
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Kings-County, New York |
| Surname | Welsh |
| Given Name | John W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | Brooklyn |
| 1935 Residence (County) | Kings |
| Additional Details | |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Township / Ward | Brooklyn |
| Est. Birth Year | ~1930 |
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 |
|---|---|---|---|---|
| John Welsh | Son | — | 10 | ~1930 |
| John Welsh | Head | — | 40 | ~1900 |
| Dorothy Butler | Other | — | 35 | ~1905 |
| Patricia Welsh | Daughter | — | 4 | ~1936 |
| Mary Welsh | Spouse | — | 34 | ~1906 |
| Donald Welsh | Son | — | 8 | ~1932 |
Census Appearances
1930
Kings, New …
Son, age
Kings, New York · implied b. ~1930 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Walsh |
| Given Name | John W |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Kings-County, New …
Son, age 10
Kings-County, New York · implied b. ~1930 — 6 household members
| Surname | Welsh |
| Given Name | John W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | Brooklyn |
| 1935 Residence (County) | Kings |
| Highest Grade | No 5 |
| 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 Welsh across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Welsh
Son · 1940 · age 10 · b. ~1930 · New York
★ You are viewing this record
Sibling
Donald Welsh
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patricia Welsh
Sibling · 1940 · age 4
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
38 people indexed on this census page (nara:1940:m-t0627-02564-00085)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Ernest Exter | 68 | Head | Hatter | Germany |
| 42 | Anna Exter | 59 | Wife | — | New York |
| 45 | Max Weidman | 42 | Head | Auning | New York |
| 46 | Laura Weidman | 42 | Wife | — | Russia |
| 47 | Bernard Weidman | 16 | Son | — | New York |
| 48 | Betty Weidman | 13 | Daughter | — | New York |
| 49 | John J. Welsh | 40 | Head | Track Helper | New York |
| 50 | Mary Welsh | 34 | Wife | — | New York |
| 51 | John W. Welsh THIS PERSON | 10 | Son | — | New York |
| 52 | Donald Welsh | 8 | Son | — | New York |
| 53 | Patricia Welsh | 4 | Daughter | — | New York |
| 54 | Dorothy Butler | 35 | Sister | Clotheshaker | New York |
| 55 | Charles Bieling | 35 | Head | Furniture | New York |
| 56 | Christian Bieling | 34 | Wife | — | New York |
| 57 | Charles Jr. Bieling | 15 | Son | — | New York |
| 58 | Lorraine Bieling | 10 | Daughter | — | New York |
| 59 | Joyce Bieling | 5 | Daughter | — | New York |
| 60 | Joseph Irwin | 36 | Head | Pressman | New York |
| 61 | Sara Irwin | 39 | Wife | Hayer Stitche | New York |
| 62 | Frank Bieling | 44 | Head | Laborer | New York |
| 63 | Loretta Bieling | 38 | Wife | — | New York |
| 64 | Dorothy Bieling | 19 | Daughter | Office Girl | New York |
| 65 | Elizabeth Bieling | 17 | Daughter | — | New York |
| 66 | Charles Hatzaras | 44 | Head | Chef | Greece |
| 67 | Della Hatzaras | 44 | Wife | — | Greece |
| 68 | Nicholas Hatzaras | 17 | Son | — | New York |
| 69 | Delia O'Brien | 60 | Head | — | Eire |
| 70 | John O'Brien | 29 | Son | Sealing | New York |
| 71 | Thomas O'Brien | 27 | Son | Sealing | New York |
| 72 | Martin O'Brien | 25 | Son | Secretary | New York |
| 73 | Eleanor O'Brien | 14 | Daughter | — | New York |
| 74 | Frances O'Brien | 12 | Daughter | — | New York |
| 75 | Katherine Brown | 64 | Head | — | New York |
| 76 | George Brown | 44 | Son | Clerk | New York |
| 77 | Ethelyn Brown | 16 | Daughter | — | New York |
| 78 | Gustav Drewe | 30 | Head | Contractor | Germany |
| 79 | Gertrude Drewe | 25 | Wife | — | Germany |
| 80 | Anna Drewe | 2 | Daughter | — | New York |
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)