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Jack Smith — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Ouachita-County, Louisiana
Our Model Tree links this Jack Smith across the 1930 and 1940 US Censuses in Ouachita-County, Louisiana (XGBoost, ~Confirmed) — first a son (b.~1916), then head of a 8-person household.
Age 24
b. ~1916
Male
Son
Born: Louisiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Ouachita-County, Louisiana |
| Surname | Smith |
| Given Name | Jack |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Louisiana |
| 1935 Residence (City) | Monroe City |
| 1935 Residence (County) | Ouachita |
| Additional Details | |
| Occupation | Common laborer |
| Industry | Construction work |
| Class of Worker | PW |
| Hours Worked | 8 |
| Highest Grade | No 0 |
| 1935 Residence | Same place |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
| Occupation | Common Laborer |
| Township / Ward | Monroe City |
| Est. Birth Year | ~1916 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Jack | Age | Birth yr |
|---|---|---|---|---|
| Sallie Smith | Daughter | — | 21 | ~1919 |
| Christine Smith | Daughter | — | 8 | ~1932 |
| John Smith | Head | — | 63 | ~1877 |
| Jack Smith | Son | — | 24 | ~1916 |
| James Smith | Son | — | 21 | ~1919 |
| August Smith | Son | — | 11 | ~1929 |
| John Smith | Son | — | 1 | ~1939 |
| Margie Smith | Spouse | — | 59 | ~1881 |
Census Appearances
1930
Ouachita, Louisiana
Son, age 14
Ouachita, Louisiana · implied b. ~1916 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Jack |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Louisiana |
| Father's Birthplace | Arkansas |
| Mother's Birthplace | Arkansas |
| Can Read/Write | Yes |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
1940
Ouachita-County, Louisiana
Son, age 24
Ouachita-County, Louisiana · implied b. ~1916 — 8 household members
| Surname | Smith |
| Given Name | Jack |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Louisiana |
| 1935 Residence (City) | Monroe City |
| 1935 Residence (County) | Ouachita |
| Occupation | Common laborer |
| Industry | Construction work |
| Class of Worker | PW |
| Hours Worked | 8 |
| Highest Grade | No 0 |
| 1935 Residence | Same place |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
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 Jack Smith across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Jack Smith
Son · 1940 · age 24 · b. ~1916 · Louisiana
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Sibling
Sallie Smith
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Smith
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Smith
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
August Smith
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Christine Smith
Sibling · 1940 · age 8
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 — Ouachita-County, Louisiana
Open full size
1940 US Federal Census — Ouachita-County, Louisiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01437-00354)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ruth Camp | 36 | wife | — | New Jersey |
| 2 | Mace J. Head | 42 | head | Foreman | Louisiana |
| 3 | Julia B. Head | 41 | wife | — | Louisiana |
| 4 | Robert Head | 19 | son | — | Louisiana |
| 5 | Mace J. Head | 16 | son | — | Louisiana |
| 6 | Susie Davis | 83 | mother in law | — | Louisiana |
| 7 | Joseph D. Lincecum | 44 | head | Carpenter | Louisiana |
| 8 | Lizzie B. Lincecum | 38 | wife | — | Texas |
| 9 | Marie Lincecum | 17 | daughter | — | Texas |
| 10 | Harold Ray Lincecum | 9 | son | — | Louisiana |
| 11 | Climpson S. Moore | 58 | head | Switchman | Missouri |
| 12 | Myrtle D. Moore | 54 | wife | — | Missouri |
| 13 | Climpson S. Moore | 32 | son | Water Operator | Missouri |
| 14 | Howard W. Montgomery | 39 | head | Well Tender | Arkansas |
| 15 | Dona D. Montgomery | 32 | wife | — | Louisiana |
| 16 | Beth Montgomery | 10 | daughter | — | Louisiana |
| 17 | Alice Montgomery | 7 | daughter | — | Louisiana |
| 18 | Leona Montgomery | 5 | daughter | — | Louisiana |
| 19 | Dennis H. Mccaithy | 44 | head | Book Binding | New York |
| 20 | Clara Marie Mccaithy | 60 | wife | — | Pennsylvania |
| 21 | John T. Smith | 63 | head | Fisherman | Louisiana |
| 22 | Margie Smith | 59 | wife | — | Louisiana |
| 23 | Sallie Smith | 21 | daughter | — | Mississippi |
| 24 | James Smith | 21 | son | Common Laborer | Mississippi |
| 25 | Jack Smith THIS PERSON | 24 | son | Common Laborer | Louisiana |
| 26 | August Smith | 11 | son | — | Mississippi |
| 27 | Christine Smith | 8 | daughter | — | Mississippi |
| 28 | John T. Smith | 1 | son | — | Louisiana |
| 29 | Irven D. Dawson | 57 | head | — | Arkansas |
| 30 | Rubye Dawson | 44 | wife | — | Arkansas |
| 31 | Earl Dawson | 19 | son | Common Laborer | Arkansas |
| 32 | Mable Dawson | 17 | daughter | — | Arkansas |
| 33 | Merle Dawson | 13 | daughter | — | Arkansas |
| 34 | Bettie Dawson | 9 | daughter | — | Louisiana |
| 35 | Shirley Dawson | 5 | daughter | — | Louisiana |
| 36 | Joseph O. Bordelon | 37 | head | Truck Driver | Louisiana |
| 37 | Anis M. Bordelon | 25 | wife | — | Louisiana |
| 38 | Melvin Whittington | 24 | head | — | Louisiana |
| 39 | Elsie Whittington | 15 | daughter | — | Louisiana |
| 40 | Pauline Whittington | 14 | daughter | — | Louisiana |
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)