MS
Mary Smith — 1940 US Census Record
Model Tree available1940 United States Federal Census · Ramsey-County, Minnesota
Our Model Tree links this Mary Smith across the 1920, 1930 and 1940 US Censuses in Ramsey-County, Minnesota (XGBoost, ~Confirmed), with identified parents Earl & Earl — first a daughter (b.~1919), then head of a 4-person household.
Age 21
b. ~1919
Female
Daughter
Born: Minnesota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Ramsey-County, Minnesota |
| Surname | Smith |
| Given Name | Mary J. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | St. Paul |
| 1935 Residence (County) | Ramsey |
| Additional Details | |
| Occupation | beautician |
| Industry | beauty parlor |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 525 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same house |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Occupation | Beautician |
| Township / Ward | St Paul |
| Est. Birth Year | ~1919 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Smith | Daughter | — | 21 | ~1919 |
| Earl Smith | Head | — | 44 | ~1896 |
| James Smith | Son | — | 20 | ~1920 |
| Rubie Smith | Spouse | — | 43 | ~1897 |
Census Appearances
1920
Ramsey, Minnesota
Daughter, age 1
Ramsey, Minnesota · implied b. ~1919 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Mary J. |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Wisconsin |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1930
Ramsey, Minnesota
Daughter, age 11
Ramsey, Minnesota · implied b. ~1919 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Mary J. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Wisconsin |
| Can Read/Write | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Ramsey-County, Minnesota
Daughter, age 21
Ramsey-County, Minnesota · implied b. ~1919 — 4 household members
| Surname | Smith |
| Given Name | Mary J. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | St. Paul |
| 1935 Residence (County) | Ramsey |
| Occupation | beautician |
| Industry | beauty parlor |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 525 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same house |
| 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 Mary Smith across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Earl Smith (~0.92 confidence) and father Earl Smith (~0.92 confidence) and mother Rubie Smith (~0.92 confidence) and mother Ruby Smith (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Earl Smith
b. ~1896
Source father
● Household
· direct · ~0.92
Father
Earl Smith
b. ~1896
Source father
● Household
· direct · ~0.92
Mother
Rubie Smith
b. ~1897
Source mother
● Household
· direct · ~0.92
Mother
Ruby Smith
b. ~1899
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Smith
Daughter · 1940 · age 21 · b. ~1919 · Minnesota
★ You are viewing this record
Sibling
James 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 — Ramsey-County, Minnesota
Open full size
1940 US Federal Census — Ramsey-County, Minnesota
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-02004-00022)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Andrew B. Wand | 58 | Head | Staff Sergeant | Austria |
| 2 | Stephanie J. Wand | 39 | Wife | — | Minnesota |
| 3 | Andrew E. Wand | 10 | Son | — | Minnesota |
| 4 | Clarence H. Primasing | 47 | Head | Sales Manager | Iowa |
| 5 | Mary A. Primasing | 52 | Wife | — | Minnesota |
| 6 | Mary Jane Gardner | 17 | Granddaughter | — | Minnesota |
| 7 | William O. Rossbach | 43 | Head | City Waterman Meter | Minnesota |
| 8 | Marie M. Rossbach | 41 | Wife | — | Minnesota |
| 9 | Margaret M. Rossbach | 16 | Daughter | — | Minnesota |
| 10 | John G. Rossbach | 68 | Head | Seed Tester | Germany |
| 11 | Louise M. Rossbach | 68 | Wife | — | Minnesota |
| 12 | Charles A. Long | 41 | Head | Iron Buyer | Iowa |
| 13 | Frances B. Long | 40 | Wife | — | Michigan |
| 14 | Cora Long | 69 | Mother | — | Iowa |
| 15 | Floyd E. Quimby | 44 | Head | Owner | Minnesota |
| 16 | Helga M. Quimby | 45 | Wife | — | Minnesota |
| 17 | Floyd E. Jr. Quimby | 13 | Son | — | Minnesota |
| 18 | Beverly J. Quimby | 12 | Daughter | — | Minnesota |
| 19 | Joan M. Quimby | 11 | Daughter | — | Minnesota |
| 20 | William C. Bye | 35 | Head | Millwright | Minnesota |
| 21 | Loretta R. Bye | 35 | Wife | — | Minnesota |
| 22 | Violet E. Bye | 13 | Daughter | — | Minnesota |
| 23 | Adolph Rossbach | 40 | Head | Radio Operator | Minnesota |
| 24 | Mary C. Rossbach | 37 | Wife | — | Minnesota |
| 25 | Luana M. Rossbach | 18 | Daughter | — | Minnesota |
| 26 | Daniel M. Pottgieser | 35 | Head | Police Officer | Minnesota |
| 27 | Mary C. Pottgieser | 28 | Wife | — | Virginia |
| 28 | Madge U. Pottgieser | 11 | Daughter | — | Colorado |
| 29 | Eugene M. Pottgieser | 9 | Son | — | Minnesota |
| 30 | Mary E. Pottgieser | 7 | Daughter | — | Minnesota |
| 31 | Angelina N. Pottgieser | 3 | Daughter | — | Minnesota |
| 32 | Arthur H. Hedlund | 45 | Head | Chief Clerk | Wisconsin |
| 33 | Hazel C. Hedlund | 44 | Wife | — | Minnesota |
| 34 | Margaret J. Hedlund | 17 | Daughter | — | Minnesota |
| 35 | Earl J. Smith | 44 | Head | Deputy Sheriff | Minnesota |
| 36 | Rubie A. Smith | 43 | Wife | — | Wisconsin |
| 37 | Mary J. Smith THIS PERSON | 21 | Daughter | Beautician | Minnesota |
| 38 | James E. Smith | 20 | Son | Bottler | Minnesota |
Pedigree Summary
Mary + 1 sibling
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
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)