CS
Carol Smith — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Mountrail-County, North Dakota
Our Model Tree links this Carol Smith across the 1930 and 1940 US Censuses in Mountrail-County, North Dakota (XGBoost, ~Confirmed) — first a daughter (b.~1925), then head of a 6-person household.
Age 15
b. ~1925
Female
Daughter
Born: North Dakota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Mountrail-County, North Dakota |
| Surname | Smith |
| Given Name | Carol |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | North Dakota |
| 1935 Residence (City) | Lowland |
| 1935 Residence (County) | Mountrail |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | Hs 8 |
| 1935 Residence | Same place |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
| Township / Ward | Lowland |
| Est. Birth Year | ~1925 |
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 Carol | Age | Birth yr |
|---|---|---|---|---|
| Carol Smith | Daughter | — | 15 | ~1925 |
| Leslie Smith | Son | — | 20 | ~1920 |
| Minnie Smith | Spouse | — | 43 | ~1897 |
| Mayme Smith | Daughter | — | 17 | ~1923 |
| Raymond Smith | Son | — | 9 | ~1931 |
| Leslie Smith | Head | — | 45 | ~1895 |
Census Appearances
1930
Mountrail, North …
Daughter, age 5
Mountrail, North Dakota · implied b. ~1925 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Carol |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | North Dakota |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Minnesota |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
1940
Mountrail-County, North …
Daughter, age 15
Mountrail-County, North Dakota · implied b. ~1925 — 6 household members
| Surname | Smith |
| Given Name | Carol |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | North Dakota |
| 1935 Residence (City) | Lowland |
| 1935 Residence (County) | Mountrail |
| Income (1939) | 0 |
| Highest Grade | Hs 8 |
| 1935 Residence | Same place |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
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 Carol Smith across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Carol Smith
Daughter · 1940 · age 15 · b. ~1925 · North Dakota
★ You are viewing this record
Sibling
Raymond Smith
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mayme Smith
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leslie Smith
Sibling · 1940 · age 20
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 — Mountrail-County, North Dakota
Open full size
1940 US Federal Census — Mountrail-County, North Dakota
Page Contents
19 people indexed on this census page (nara:1940:m-t0627-03008-00128)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Johanna Hoffman | 41 | Daughter | — | Missouri |
| 42 | Robert S. Jacobsen | 28 | Head | Farmer | Wisconsin |
| 43 | Hattie Jacobsen | 70 | Mother | — | Wisconsin |
| 44 | Eda Jacobsen | 44 | Sister | — | Wisconsin |
| 45 | Fred Schultz | 42 | Laborer | Farmer | Wisconsin |
| 46 | Herman Mandt | 38 | Head | Farmer | Iowa |
| 47 | Marretta Mandt | 28 | Wife | — | North Dakota |
| 48 | Wilfern O. Gustavson | 33 | Head | Farmer | North Dakota |
| 49 | Mae Gustavson | 31 | Wife | — | North Dakota |
| 50 | Mervin Gustavson | 3 | Son | — | North Dakota |
| 51 | Sarah A. Mcnair | 76 | Head | — | Ireland |
| 52 | Andrew P. Jacobson | 62 | Head | Farmer | Denmark |
| 53 | Anna Jacobson | 58 | Wife | — | Sweden |
| 54 | Leslie Smith | 45 | Head | Farmer | Iowa |
| 55 | Minnie Smith | 43 | Wife | — | Minnesota |
| 56 | Leslie Smith | 20 | Son | Helper | North Dakota |
| 57 | Mayme Smith | 17 | Daughter | Helping Mother | North Dakota |
| 58 | Carol Smith THIS PERSON | 15 | Daughter | — | North Dakota |
| 59 | Raymond Smith | 9 | Son | — | North Dakota |
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)