OS
Oliver Smith — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Monroe-County, Missouri
Our Model Tree links this Oliver Smith across the 1930 and 1940 US Censuses in Monroe-County, Missouri (XGBoost, ~Confirmed) — first a son (b.~1930), then head of a 10-person household.
Age 10
b. ~1930
Male
Son
Born: Missouri
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Monroe-County, Missouri |
| Surname | Smith |
| Given Name | Oliver Curtis |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | Marion west 1/2 |
| 1935 Residence (County) | Monroe |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | No 3 |
| 1935 Residence | Same place |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Township / Ward | Marion West 12 |
| 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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Oliver | Age | Birth yr |
|---|---|---|---|---|
| Hazel Smith | Daughter | — | 4 | ~1936 |
| Oliver Smith | Son | — | 10 | ~1930 |
| Oliver Smith | Head | — | 48 | ~1892 |
| James Smith | Son | — | 12 | ~1928 |
| Mary Smith | Spouse | — | 46 | ~1894 |
| Mary Smith | Daughter | — | 17 | ~1923 |
| William Smith | Son | — | 9 | ~1931 |
| Wilburn Smith | Son | — | 14 | ~1926 |
| Chad Smith | Son | — | 16 | ~1924 |
| Edgar Smith | Son | — | 6 | ~1934 |
Census Appearances
1930
Monroe, Missouri
Son, age
Monroe, Missouri · implied b. ~1930 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Oliver C. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Can Read/Write | No |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1940
Monroe-County, Missouri
Son, age 10
Monroe-County, Missouri · implied b. ~1930 — 10 household members
| Surname | Smith |
| Given Name | Oliver Curtis |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | Marion west 1/2 |
| 1935 Residence (County) | Monroe |
| Income (1939) | 0 |
| Highest Grade | No 3 |
| 1935 Residence | Same place |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
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 Oliver Smith across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Oliver Smith
Son · 1940 · age 10 · b. ~1930 · Missouri
★ You are viewing this record
Sibling
Hazel Smith
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Chad Smith
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edgar Smith
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Smith
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Smith
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Smith
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Wilburn Smith
Sibling · 1940 · age 14
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 — Monroe-County, Missouri
Open full size
1940 US Federal Census — Monroe-County, Missouri
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02130-00561)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Sarah A. Karnes | 68 | Head | Farmer | Indiana |
| 42 | Gladys E. Karnes | 37 | Daughter | — | Indiana |
| 43 | Robert L. Karnes | 30 | Son | Helper | Missouri |
| 44 | Garlan Elsberry | 43 | Head | Farmer | Missouri |
| 45 | Mildred Elsberry | 27 | Wife | — | Missouri |
| 46 | Geo. W. Elsberry | 66 | Head | Farmer | Missouri |
| 47 | Ida G. Elsberry | 65 | Wife | — | Missouri |
| 48 | Omer Mason | 62 | Head | Farmer | Missouri |
| 49 | Clara May Mason | 48 | Wife | — | Missouri |
| 50 | Elmer J. Llewellyn | 62 | Head | Farmer | Missouri |
| 51 | Mollie Llewellyn | 59 | Wife | — | Missouri |
| 52 | Oliver C. Smith | 48 | Head | Farmer | Missouri |
| 53 | Mary Alice Smith | 46 | Wife | — | Missouri |
| 54 | Mary N. Smith | 17 | Daughter | — | Missouri |
| 55 | Chad A. Smith | 16 | Son | Laborer | Missouri |
| 56 | Wilburn V. Smith | 14 | Son | Laborer | Missouri |
| 57 | James Henry Smith | 12 | Son | — | Missouri |
| 58 | Oliver Curtis Smith THIS PERSON | 10 | Son | — | Missouri |
| 59 | William R. Smith | 9 | Son | — | Missouri |
| 60 | Edgar O. Smith | 6 | Son | — | Missouri |
| 61 | Hazel Irene Smith | 4 | Daughter | — | Missouri |
| 62 | Gerald D. Elsberry | 28 | Head | Farmer | Missouri |
| 63 | Virginia D. Elsberry | 28 | Wife | — | Missouri |
| 64 | B. Z. Foster | 67 | Head | Farmer | Missouri |
| 65 | Kitty O. Foster | 51 | Wife | — | Missouri |
| 66 | Geo. F. Foster | 20 | Son | — | Missouri |
| 67 | Pauline V. Foster | 16 | Daughter | — | Missouri |
| 68 | Lige Elsberry | 83 | Head | Farmer | Missouri |
| 69 | Bruce Potter | 31 | Step-son | Laborer | Missouri |
| 70 | W. Howard Powell | 31 | Head | Laborer | Missouri |
| 71 | Fay Dell Powell | 28 | Wife | — | Missouri |
| 72 | Marcella P. Powell | 9 | Daughter | — | Missouri |
| 73 | Junior Powell | 7 | Son | — | Missouri |
| 74 | Kenneth E. Powell | 4 | Son | — | Missouri |
| 75 | Helen F. Powell | 1 | Daughter | — | Missouri |
| 76 | John T. Engle | 82 | Head | Farmer | Missouri |
| 77 | Ella Engle | 63 | Wife | — | Missouri |
| 78 | Kenneth L. Utterback | 28 | Head | Farmer | Missouri |
| 79 | Ruby Fay Utterback | 21 | Wife | — | Missouri |
| 80 | Dorthy Sue Utterback | 3 | Daughter | — | Missouri |
Related Census Records
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)