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Joan Smith — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Ramsey-County, Minnesota
Our Model Tree links this Joan Smith across the 1930 and 1940 US Censuses in Ramsey-County, Minnesota (XGBoost, ~Confirmed) — first a daughter (b.~1930), then head of a 6-person household.
Age 10
b. ~1930
Female
Daughter
Born: Minnesota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Ramsey-County, Minnesota |
| Surname | Smith |
| Given Name | Joan M |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | St. Paul City |
| 1935 Residence (County) | Ramsey |
| Additional Details | |
| Highest Grade | G 3 |
| 1935 Residence | Same place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Township / Ward | St Paul City |
| 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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Joan | Age | Birth yr |
|---|---|---|---|---|
| Joan Smith | Daughter | — | 10 | ~1930 |
| Florence Smith | Spouse | — | 29 | ~1911 |
| James Smith | Son | — | 3 | ~1937 |
| Delores Smith | Daughter | — | 8 | ~1932 |
| Carole Smith | Daughter | — | 5 | ~1935 |
| George Smith | Head | — | 29 | ~1911 |
Census Appearances
1930
Ramsey, Minnesota
Daughter, age
Ramsey, Minnesota · implied b. ~1930 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Joan M |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Wisconsin |
| Occupation | none |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Ramsey-County, Minnesota
Daughter, age 10
Ramsey-County, Minnesota · implied b. ~1930 — 6 household members
| Surname | Smith |
| Given Name | Joan M |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | St. Paul City |
| 1935 Residence (County) | Ramsey |
| Highest Grade | G 3 |
| 1935 Residence | Same place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
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 10 · b. ~1930 · Minnesota
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Sibling
Carole Smith
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Smith
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Delores 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 — Ramsey-County, Minnesota
Open full size
1940 US Federal Census — Ramsey-County, Minnesota
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01998-00240)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Molly Friedman | 8 | Daughter | — | Minnesota |
| 2 | Fred Larkin | 29 | Head | Cashier | Minnesota |
| 3 | Wanda Larkin | 24 | Wife | Waitress | Minnesota |
| 4 | G. E. Blacke | 33 | Head | Salesman | Minnesota |
| 5 | Helen Blacke | 34 | Wife | Waitress | Wisconsin |
| 6 | William De Rusha | 55 | Head | Proprietor | Wisconsin |
| 7 | Perry Schichel | 42 | Head | Night Man | Illinois |
| 8 | Etta Schichel | 51 | Wife | — | Minnesota |
| 9 | Pure Schichel | 24 | Son | New Worker | Iowa |
| 10 | William Schichel | 18 | Son | New Worker | Minnesota |
| 11 | John Dahlquist | 33 | Head | Research Worker | Minnesota |
| 12 | Agnes Dahlquist | 26 | Wife | — | Minnesota |
| 13 | Paul S. Phillippi | 9 | Son | — | Minnesota |
| 14 | Keith Phillippi | 7 | Son | — | Minnesota |
| 15 | Douglas Phillippi | 3 | Son | — | Minnesota |
| 16 | Arthur Olson | 38 | Head | Yard Man | Wisconsin |
| 17 | Florence Olson | 35 | Wife | Cook | Wisconsin |
| 18 | Donald Olson | 16 | Son | — | Wisconsin |
| 19 | Cecil Olson | 15 | Son | — | Wisconsin |
| 20 | George Smith | 29 | Head | Boiler Maker | Wisconsin |
| 21 | Florence Smith | 29 | Wife | — | Canada |
| 22 | Joan M Smith THIS PERSON | 10 | Daughter | — | Minnesota |
| 23 | Delores Smith | 8 | Daughter | — | Minnesota |
| 24 | Carole Smith | 5 | Daughter | — | Minnesota |
| 25 | James Smith | 3 | Son | — | Minnesota |
| 26 | Frances Hahn | 49 | Head | Pastry Cook | Minnesota |
| 27 | Samuel Pranke | 30 | Head | Varnish Helper | Minnesota |
| 28 | Harriet Pranke | 33 | Wife | — | Illinois |
| 29 | Frank Hubler | 27 | Head | Sign Painter | Wisconsin |
| 30 | Gladys Hubler | 26 | Wife | — | Wisconsin |
| 31 | Leona May Hubler | 2 | Daughter | — | Wisconsin |
| 32 | Rolland Atz | 25 | Head | Water Service Repair Man | Minnesota |
| 33 | Margaret Atz | 22 | Wife | — | Minnesota |
| 34 | Rolland A. Atz | 0 | Son | — | Minnesota |
| 35 | Allan Hildreth | 40 | Head | Carpenter | Minnesota |
| 36 | Esther Hildreth | 37 | Wife | — | Minnesota |
| 37 | Laurence Fulton | 52 | Head | Salesman | Indiana |
| 38 | Anna Fulton | 47 | Wife | — | Minnesota |
| 39 | Maring Hull | 70 | Head | — | Iowa |
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)