LS
Leon Smith — 1940 US Census Record
Model Tree available1940 United States Federal Census · Monmouth-County, New Jersey
Our Model Tree links this Leon Smith across the 1920, 1930 and 1940 US Censuses in Monmouth-County, New Jersey (XGBoost, ~Confirmed), with identified parents Augustus & Hattie — first a son (b.~1904), then head of a 2-person household.
Age 36
b. ~1904
Male
Son
Born: New Jersey
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Monmouth-County, New Jersey |
| Surname | Smith |
| Given Name | Leon |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Freehold Township |
| 1935 Residence (County) | Monmouth |
| Additional Details | |
| Occupation | Tr. Clerk |
| Industry | Survey of Road Resources |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 660 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | Tr. Clerk |
| Township / Ward | Freehold Township |
| Est. Birth Year | ~1904 |
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.
2 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Leon | Age | Birth yr |
|---|---|---|---|---|
| Leon Smith | Son | — | 36 | ~1904 |
| Hattie Smith | Head | — | 62 | ~1878 |
Census Appearances
1920
Monmouth, New …
Son, age 17
Monmouth, New Jersey · implied b. ~1903 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Leon H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Occupation | Laborer |
| Industry | Farm Labor |
| Class of Worker | W |
| Can Read | No |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1930
Monmouth, New …
Son, age 25
Monmouth, New Jersey · implied b. ~1905 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Leon |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Occupation | Laborer |
| Industry | Farm, Truck |
| Class of Worker | VIVV |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Monmouth-County, New …
Son, age 36
Monmouth-County, New Jersey · implied b. ~1904 — 2 household members
| Surname | Smith |
| Given Name | Leon |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Freehold Township |
| 1935 Residence (County) | Monmouth |
| Occupation | Tr. Clerk |
| Industry | Survey of Road Resources |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 660 |
| 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 Leon Smith across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Augustus Smith (~0.92 confidence) and mother Hattie Smith (~0.92 confidence) and mother Hattie Smith (~0.92 confidence) and mother Harriet Smith (~0.92 confidence) and father Augustus Smith (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Augustus Smith
b. ~1875
Source father
● Household
· direct · ~0.92
Mother
Hattie Smith
b. ~1877
Source mother
● Household
· direct · ~0.92
Mother
Hattie Smith
b. ~1878
Source mother
● Household
· direct · ~0.92
Mother
Harriet Smith
b. ~1882
Source mother
● Household
· direct · ~0.92
Father
Augustus Smith
b. ~1885
Source father
● Household
· direct · ~0.92
This person
Anchor record
Leon Smith
Son · 1940 · age 36 · b. ~1904 · New Jersey
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Monmouth-County, New Jersey
Open full size
1940 US Federal Census — Monmouth-County, New Jersey
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02366-00373)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Michael Katerinis | 22 | Son | Counterman | Greece |
| 2 | Kathristine Katerinis | 18 | Daughter | — | New Jersey |
| 3 | Ann Katerinis | 16 | Daughter | — | New Jersey |
| 4 | John Katerinis | 14 | Son | — | New Jersey |
| 5 | Hattie Smith | 62 | Head | — | New Jersey |
| 6 | Leon Smith THIS PERSON | 36 | Son | Tr. Clerk | New Jersey |
| 7 | James Johnson | 46 | Head | Laborer | New Jersey |
| 8 | Eva Johnson | 45 | Wife | — | Pennsylvania |
| 9 | Ralph Johnson | 11 | Son | — | New Jersey |
| 10 | Ruth Johnson | 7 | Daughter | — | New Jersey |
| 11 | Joseph Edwards | 49 | Head | Laborer | New Jersey |
| 12 | Dorothy Edwards | 49 | Wife | — | England |
| 13 | Robert Edwards | 23 | Son | Laborer | New Jersey |
| 14 | Dorothy Edwards | 10 | Daughter | — | New York |
| 15 | George Becker | 43 | Head | Laborer | New Jersey |
| 16 | Lottie Becker | 44 | Wife | — | New Jersey |
| 17 | Robert Becker | 15 | Son | — | New Jersey |
| 18 | Dorothy Becker | 14 | Daughter | — | New Jersey |
| 19 | Smith Hankins | 60 | Head | Laborer | New Jersey |
| 20 | Russell Hankins | 33 | Son | — | New Jersey |
| 21 | William Hankins | 29 | Son | Laborer | New Jersey |
| 22 | Elmer Hankins | 14 | Son | — | New Jersey |
| 23 | George F. Becker | 63 | Head | Laborer | New Jersey |
| 24 | Barbara Becker | 63 | Wife | — | New Jersey |
| 25 | Henrietta Becker | 34 | Daughter | — | New Jersey |
| 26 | John Becker | 32 | Son | Presser | New Jersey |
| 27 | Henry Becker | 20 | Brother | — | New Jersey |
| 28 | Arthur Applegate | 26 | Head | Laborer | New Jersey |
| 29 | Alice Applegate | 25 | Wife | Examiner | New Jersey |
| 30 | Russell Emmons | 29 | Head | Starcher | New Jersey |
| 31 | Ivy Emmons | 25 | Wife | — | New Jersey |
| 32 | Edith Emmons | 7 | Daughter | — | New Jersey |
| 33 | Bertha Emmons | 6 | Daughter | — | New Jersey |
| 34 | Mary Emmons | 4 | Daughter | — | New Jersey |
| 35 | Russell Emmons | 2 | Son | — | New Jersey |
| 36 | Esther Cottrell White | 32 | Head | — | New Jersey |
| 37 | Fred Vorio | 35 | Head | Welder | New Jersey |
| 38 | Mary Jane Cottrell | 66 | Head | — | New Jersey |
| 39 | Belld Cottrell | 46 | Son | — | New Jersey |
| 40 | Abi Cottrell | 44 | Son | — | New Jersey |
Pedigree Summary
Leon
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)