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Jacob Smith — 1940 US Census Record
Model Tree available1940 United States Federal Census · Kings-County, New York
Our Model Tree links this Jacob Smith across the 1920, 1930 and 1940 US Censuses in Kings-County, New York (XGBoost, ~Confirmed), with identified parents George & Charles — first a son (b.~1917), then head of a 9-person household.
Age 23
b. ~1917
Male
Son
Born: New York
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Kings-County, New York |
| Surname | Smith |
| Given Name | Jacob |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | New York City |
| 1935 Residence (County) | Kings |
| Additional Details | |
| Occupation | Laborer |
| Class of Worker | PW |
| Hours Worked | 36 |
| Income (1939) | 125 |
| Highest Grade | G 8 |
| 1935 Residence | Same Place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Laborer |
| Township / Ward | New York City |
| Est. Birth Year | ~1917 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Jacob | Age | Birth yr |
|---|---|---|---|---|
| Sarah Smith | Daughter | — | 11 | ~1929 |
| Martha Smith | Daughter | — | 19 | ~1921 |
| George Smith | Head | — | 53 | ~1887 |
| Harry Smith | Son | — | 5 | ~1935 |
| Ernest Smith | Son | — | 18 | ~1922 |
| George Smith | Son | — | 25 | ~1915 |
| Jacob Smith | Son | — | 23 | ~1917 |
| John Smith | Son | — | 13 | ~1927 |
| Sadie Smith | Spouse | — | 46 | ~1894 |
Census Appearances
1920
Kings, New …
Son, age 4
Kings, New York · implied b. ~1916 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Jacob |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| 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 |
1930
Kings, New …
Son, age 14
Kings, New York · implied b. ~1916 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Jacob |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Kings-County, New …
Son, age 23
Kings-County, New York · implied b. ~1917 — 9 household members
| Surname | Smith |
| Given Name | Jacob |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | New York City |
| 1935 Residence (County) | Kings |
| Occupation | Laborer |
| Class of Worker | PW |
| Hours Worked | 36 |
| Income (1939) | 125 |
| Highest Grade | G 8 |
| 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 Jacob Smith across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father George Smith (~0.92 confidence) and father Charles Smith (~0.92 confidence) and father George Smith (~0.92 confidence) and mother Bertha Smith (~0.92 confidence) and mother Sadie Smith (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
George Smith
b. ~1885
Source father
● Household
· direct · ~0.92
Father
Charles Smith
b. ~1887
Source father
● Household
· direct · ~0.92
Father
George Smith
b. ~1887
Source father
● Household
· direct · ~0.92
Mother
Bertha Smith
b. ~1888
Source mother
● Household
· direct · ~0.92
Mother
Sadie Smith
b. ~1894
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Jacob Smith
Son · 1940 · age 23 · b. ~1917 · New York
★ You are viewing this record
Sibling
Ernest Smith
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harry Smith
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Martha Smith
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Smith
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Smith
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Sarah Smith
Sibling · 1940 · age 11
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-t0627-02574-00474)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Frances M. Kane | 34 | Head | Operator | New York |
| 42 | James Kane | 12 | Son | — | New York |
| 43 | Elizabeth Kane | 10 | Daughter | — | New York |
| 44 | John J. Hennessy | 27 | Head | Investigator | New York |
| 45 | Joseph R. Hennessy | 28 | Brother | Sales Manager | New York |
| 46 | Estelle M. Hennessy | 20 | Sister | Clerk | New York |
| 47 | Muriel M. Hennessy | 15 | Sister | — | New York |
| 48 | James J. Hennessy | 15 | Brother | — | New York |
| 49 | Madeline Mulvihill | 24 | Head | — | New York |
| 50 | James F. Mulvihill | 4 | Son | — | New York |
| 51 | Thomas Mulvihill | 3 | Son | — | New York |
| 52 | William Middlecamp | 36 | Head | Laborer | Ohio |
| 53 | Lillian Middlecamp | 36 | Wife | — | New York |
| 54 | Dennis Middlecamp | 17 | Son | — | New York |
| 55 | Simone Pace | 48 | Head | Proprietor | Italy |
| 56 | Angela Pace | 48 | Wife | — | Italy |
| 57 | John Pace | 24 | Son | Chauffeur | Italy |
| 58 | Lucy Pace | 22 | Daughter | Clerk | Italy |
| 59 | Catherine Pace | 18 | Daughter | — | New York |
| 60 | Thomas O'Brien | 53 | Head | Agent | New York |
| 61 | Bertha O'Brien | 45 | Wife | — | New York |
| 62 | Thomas Jr. O'Brien | 18 | Son | Clerk | New York |
| 63 | Dorothy O'Brien | 16 | Daughter | — | New York |
| 64 | Helen Engman | 69 | Mother-in-law | — | Norway |
| 65 | George Smith | 53 | Head | Driver | New York |
| 66 | Sadie Smith | 46 | Wife | — | New York |
| 67 | George Jr. Smith | 25 | Son | Bookkeeper | New York |
| 68 | Jacob Smith THIS PERSON | 23 | Son | Laborer | New York |
| 69 | Martha Smith | 19 | Daughter | Clerk | New York |
| 70 | Ernest Smith | 18 | Son | — | New York |
| 71 | Sarah Smith | 11 | Daughter | — | New York |
| 72 | John Smith | 13 | Son | — | New York |
| 73 | Harry Smith | 5 | Son | — | New York |
| 74 | Selim Katen | 70 | Head | — | Syria |
| 75 | Nounia Katen | 65 | Wife | — | Syria |
| 76 | Raife Katen | 36 | Daughter | Piece Work | Syria |
| 77 | Anwar Katen | 33 | Son | Shipping Clerk | Syria |
| 78 | Adeeb Katen | 26 | Son | Salesman | Syria |
| 79 | Katen Katen | 20 | Son | Delivery Boy | Syria |
| 80 | George Mcmonigal | 53 | Head | Painter | Scotland |
Related Census Records
Pedigree Summary
Jacob + 6 siblings
Gen 1 · 5 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)