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Joan Smith — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Marion-County, Ohio
Our Model Tree links this Joan Smith across the 1930 and 1940 US Censuses in Marion-County, Ohio (XGBoost, ~Confirmed) — first a daughter (b.~1928), then head of a 6-person household.
Age 12
b. ~1928
Female
Daughter
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Marion-County, Ohio |
| Surname | Smith |
| Given Name | Joan R |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Claridon Township |
| 1935 Residence (County) | Marion |
| Additional Details | |
| Highest Grade | 5 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Township / Ward | Claridon Township |
| Est. Birth Year | ~1928 |
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 Joan | Age | Birth yr |
|---|---|---|---|---|
| Alice Smith | Daughter | — | 20 | ~1920 |
| Clyde Smith | Head | — | 47 | ~1893 |
| Joan Smith | Daughter | — | 12 | ~1928 |
| Freda Smith | Spouse | — | 47 | ~1893 |
| Lema Smith | Daughter | — | 17 | ~1923 |
| Charles Smith | Son | — | 23 | ~1917 |
Census Appearances
1930
Marion, Ohio
Daughter, age 1
Marion, Ohio · implied b. ~1929 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Joan R |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Marion-County, Ohio
Daughter, age 12
Marion-County, Ohio · implied b. ~1928 — 6 household members
| Surname | Smith |
| Given Name | Joan R |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Claridon Township |
| 1935 Residence (County) | Marion |
| Highest Grade | 5 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
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 Joan Smith across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Joan Smith
Daughter · 1940 · age 12 · b. ~1928 · Ohio
★ You are viewing this record
Sibling
Lema Smith
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Smith
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Smith
Sibling · 1940 · age 23
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 — Marion-County, Ohio
Open full size
1940 US Federal Census — Marion-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03110-00076)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Hubert H Goerlich | 23 | Step son | Collector | Ohio |
| 2 | William L Earl | 25 | Head | Farmer | Ohio |
| 3 | Edna S Earl | 24 | Wife | — | Ohio |
| 4 | Janice J Earl | 5 | Daughter | — | Ohio |
| 5 | John Glick | 21 | Hired hand | Farm Hand | Ohio |
| 6 | George L Earl | 22 | Head | Farmer | Ohio |
| 7 | Mary E Earl | 23 | Wife | — | Ohio |
| 8 | Lon L Earl | 4 | Son | — | Ohio |
| 9 | Arlie L Walters | 28 | Head | Farmer | Ohio |
| 10 | Mary J Walters | 23 | Wife | — | Ohio |
| 11 | Harry D Price | 43 | Head | Manager | Ohio |
| 12 | Nellie G Price | 35 | Wife | Clerk | Ohio |
| 13 | Richard H Price | 16 | Son | — | Ohio |
| 14 | John E Price | 15 | Son | — | Ohio |
| 15 | Mary E Price | 13 | Daughter | — | Ohio |
| 16 | Lois H Roberts | 36 | Sister in law | Teacher | Ohio |
| 17 | Allen Lange | 51 | Head | Farmer | Ohio |
| 18 | Ella Lange | 49 | Wife | — | Ohio |
| 19 | Alfreda Lange | 22 | Daughter | — | Ohio |
| 20 | Dorothy Lange | 18 | Daughter | — | Ohio |
| 21 | Clyde W Smith | 47 | Head | Farmer | Ohio |
| 22 | Freda I Smith | 47 | Wife | — | Ohio |
| 23 | Charles F Smith | 23 | Son | Farmer | Ohio |
| 24 | Alice L Smith | 20 | Daughter | Nurse In Training | Ohio |
| 25 | Lema Mae Smith | 17 | Daughter | — | Ohio |
| 26 | Joan R Smith THIS PERSON | 12 | Daughter | — | Ohio |
| 27 | Harry D Sult | 63 | Head | Farmer | Ohio |
| 28 | Eva L Sult | 62 | Wife | — | Ohio |
| 29 | Melvia Ault | 86 | Mother in law | — | Ohio |
| 30 | Carl W Mantz | 45 | Head | Farmer | Ohio |
| 31 | Helen M Mantz | 41 | Wife | — | Ohio |
| 32 | Joseph W Mantz | 19 | Cousin | — | Ohio |
| 33 | Hayes Holland | 63 | Head | Farmer | Ohio |
| 34 | Ethel L Holland | 55 | Wife | — | Ohio |
| 35 | Royal M Fields | 23 | Head | Cost Clerk | Ohio |
| 36 | Jean M Fields | 21 | Wife | — | Ohio |
| 37 | Gwendolyn Fields | 0 | Daughter | — | Ohio |
| 38 | Clyde L Kline | 36 | Head | Farmer | Ohio |
| 39 | Nellie M Kline | 32 | Wife | — | Ohio |
| 40 | Joy A Kline | 11 | Daughter | — | Ohio |
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)