MC
Mary Carlson — 1920 US Census Record
Linked across censuses1920 United States Federal Census · St Louis, Minnesota
Our Model Tree links this Mary Carlson across the 1910, 1920, 1930 and 1940 US Censuses in St Louis, Minnesota (XGBoost, ~Confirmed) — first a spouse (b.~1889), then head of a 4-person household.
Age 31
b. ~1889
Female
Spouse
Born: Finland
Married
1920 Census Record Details
| Census Year | 1920 |
| Location | St Louis, Minnesota |
| Surname | Carlson |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Finland |
| Year of Immigration | 1913 |
| Naturalization Status | First papers filed |
| Father's Birthplace | Finland |
| Mother's Birthplace | Finland |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Swedish |
| Birth Country | Finland |
| Birthplace (normalized) | finland |
| Township / Ward | Duluth City |
| Est. Birth Year | ~1889 |
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 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Carlson | Spouse | — | 31 | ~1889 |
| Fred Erickson | Other | — | 23 | ~1897 |
| Henning Carlson | Son | — | 1 | ~1919 |
| Sam Carlson | Head | — | 33 | ~1887 |
Census Appearances
1910
St Louis, …
Spouse, age 22
St Louis, Minnesota · implied b. ~1888 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carlson |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Married |
| Birthplace | Finland |
| Years Married | 4 |
| Year of Immigration | 1909 |
| Father's Birthplace | Finland |
| Mother's Birthplace | Finland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Finnish |
| Birth Country | Finland |
| Birthplace (normalized) | finland |
1920
St Louis, …
Spouse, age 31
St Louis, Minnesota · implied b. ~1889 — 4 household members
| Surname | Carlson |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Finland |
| Year of Immigration | 1913 |
| Naturalization Status | First papers filed |
| Father's Birthplace | Finland |
| Mother's Birthplace | Finland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Swedish |
| Birth Country | Finland |
| Birthplace (normalized) | finland |
1930
St Louis, …
Spouse, age 42
St Louis, Minnesota · implied b. ~1888 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carlson |
| Given Name | Marie |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Finland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1907 |
| Age at First Marriage | 19 |
| Father's Birthplace | Finland |
| Mother's Birthplace | Finland |
| Occupation | none |
| Can Read/Write | Yes |
| Mother Tongue | Swedish |
| Birth Country | Finland |
| Birthplace (normalized) | finland |
1940
St.-Louis-County, Minnesota
Spouse, age 52
St.-Louis-County, Minnesota · implied b. ~1888 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carlson |
| Given Name | Marie |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Finland |
| 1935 Residence (City) | Fayal Township |
| 1935 Residence (County) | St. Louis |
| Naturalization Status | Naturalized |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth Country | Finland |
| Birthplace (normalized) | finland |
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 Carlson across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Carlson
Spouse · 1920 · age 31 · b. ~1889 · Minnesota
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1920 US Federal Census — St Louis, Minnesota
Open full size
1920 US Federal Census — St Louis, Minnesota
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu859unit:0172)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Rosy Boushafa | 12 | Daughter | — | Minnesota |
| 2 | Violet Boushafa | 6 | Daughter | — | Minnesota |
| 3 | Margaret Boushafa | 3 | Daughter | — | Minnesota |
| 4 | Peter Carlson | 39 | Head | Machinist | Tennessee |
| 5 | Rebecca Carlson | 38 | Wife | — | Georgia |
| 6 | Delia May Carlson | 18 | Daughter | Spinner | Tennessee |
| 7 | Margrett Carlson | 14 | Daughter | — | Tennessee |
| 8 | Dora Pauline Carlson | 11 | Daughter | — | Tennessee |
| 9 | Henry M La Duke | 57 | Head | Watchman | Michigan |
| 10 | Louisa La Duke | 65 | Wife | — | Canada |
| 11 | Gertrude La Duke | 29 | Daughter | Music Teacher | Michigan |
| 12 | John L La Duke | 26 | Son | Stenographer | Michigan |
| 13 | Charles La Clair | 35 | Step son | Moulder | Michigan |
| 14 | Robert L Johnson | 32 | Head | Machinist | Tennessee |
| 15 | Susie Johnson | 28 | Wife | — | Tennessee |
| 16 | Kenneth Johnson | 1 | Son | — | Minnesota |
| 17 | Thomas N Robinson | 39 | Head | Mechanic | United States |
| 18 | Nellie Robinson | 34 | Wife | — | United States |
| 19 | Charlotte E Robinson | 15 | Daughter | — | Minnesota |
| 20 | Mildred B Robinson | 12 | Daughter | — | Minnesota |
| 21 | Arthur Lung | 28 | Head | Laborer | Maine |
| 22 | Rose Lung | 26 | Wife | — | New York |
| 23 | Anna Lung | 7 | Daughter | — | New York |
| 24 | Lillie Thomas | 39 | Head | Boarder | Illinois |
| 25 | Sam Mcallister | 55 | Boarder | Laborer | Michigan |
| 26 | John Isackson | 53 | Head | Laborer | Finland |
| 27 | Amanda Isackson | 57 | Wife | — | Finland |
| 28 | Sadie Isackson | 17 | Daughter | Spinner | Minnesota |
| 29 | Victor Carlson | 28 | Boarder | Laborer | Finland |
| 30 | Alfie Carlson | 68 | Head | — | Finland |
| 31 | Matilda Anderson | 62 | Roomer | — | Finland |
| 32 | Matilda Sivonall | 66 | Head | — | Finland |
| 33 | John Sivonall | 26 | Son | Laborer | Finland |
| 34 | Florence Sivonall | 22 | Daughter | Spinner | Montana |
| 35 | Sam Carlson | 33 | Head | Car Repair | Sweden |
| 36 | Mary Carlson THIS PERSON | 31 | Wife | — | Finland |
| 37 | Henning Carlson | 1 | Son | — | Minnesota |
| 38 | Fred Erickson | 23 | Son-in-law | Car Repair | Finland |
| 39 | Alexander Olstrom | 62 | Head | Laborer | Finland |
| 40 | Lena Olstrom | 65 | Wife | — | Finland |
| 41 | Arthur Carlson | 34 | Head | Laborer | Finland |
| 42 | Mabel Carlson | 29 | Wife | — | Minnesota |
| 43 | Lawrence Carlson | 8 | Son | — | Minnesota |
| 44 | Frank Johnson | 51 | Boarder | Laborer | Sweden |
| 45 | Filipp H Hendrickson | 57 | Head | Laborer | Finland |
| 46 | Johanna Hendrickson | 67 | Wife | — | Sweden |
| 47 | Joseph Kozlowski | 34 | Head | Laborer | Russia |
| 48 | Wanda Kozlowski | 27 | Wife | — | Minnesota |
| 49 | Wanda Kozlowski | 7 | Daughter | — | Minnesota |
| 50 | Florence Kozlowski | 5 | Son | — | Minnesota |
Related Census Records
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)