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Mary Larsen — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Cook, Illinois
Our Model Tree links this Mary Larsen across the 1900, 1910 and 1920 US Censuses in Cook, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1869), then head of a 5-person household.
Age 51
b. ~1869
Female
Spouse
Born: Denmark
Married
1920 Census Record Details
| Census Year | 1920 |
| Location | Cook, Illinois |
| Surname | Larsen |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Denmark |
| Year of Immigration | 1881 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Danish |
| Birth Country | Denmark |
| Birthplace (normalized) | denmark |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1869 |
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.
5 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Annie Gardner | Daughter | — | 22 | ~1898 |
| Mary Larsen | Spouse | — | 51 | ~1869 |
| George Gardner | Other | — | ~1920 | |
| George Gardner | Other | — | 26 | ~1894 |
| Peter Larsen | Head | — | 53 | ~1867 |
Census Appearances
1900
Cook, Illinois
Spouse, age 32
Cook, Illinois · implied b. ~1868 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Larson |
| Given Name | Marie |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Denmark |
| Birth Month | June |
| Birth Year | 1868 |
| Year of Immigration | 1883 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth Country | Denmark |
| Birthplace (normalized) | denmark |
1910
Cook, Illinois
Spouse, age 42
Cook, Illinois · implied b. ~1868 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Larsen |
| Given Name | Marie |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Denmark |
| Years Married | 21 |
| Children Born | 4 |
| Children Living | 3 |
| Year of Immigration | 1882 |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Occupation | none |
| Birth Country | Denmark |
| Birthplace (normalized) | denmark |
1920
Cook, Illinois
Spouse, age 51
Cook, Illinois · implied b. ~1869 — 5 household members
| Surname | Larsen |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Denmark |
| Year of Immigration | 1881 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Danish |
| Birth Country | Denmark |
| Birthplace (normalized) | denmark |
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 Larsen across 3 US Census years (1900, 1910 and 1920) in Cook, Illinois, using XGBoost record linkage.
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This person
Anchor record
Mary Larsen
Spouse · 1920 · age 51 · b. ~1869 · Illinois
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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 — Cook, Illinois
Open full size
1920 US Federal Census — Cook, Illinois
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu315unit:0966)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Daniel Bagley | 21 | Lodger | Draftsman | Indiana |
| 2 | Gertrude Bagley | 50 | Mother-in-law | — | Michigan |
| 3 | Henry Goodall | 64 | Head | Conductor | New York |
| 4 | Rose Goodall | 54 | Wife | — | New York |
| 5 | John Murphy | 19 | Grand-son | Clerk | Illinois |
| 6 | Maude Murphy | 16 | Grand-Daughter | — | Illinois |
| 7 | Henry Murphy | 13 | Grand-son | — | Illinois |
| 8 | Thomas Hogan | 46 | Head | Conductor | Ireland |
| 9 | Helen Hogan | 41 | Wife | — | Ireland |
| 10 | James Hogan | 11 | Son | — | Illinois |
| 11 | Thomas Hogan | 8 | Son | — | Illinois |
| 12 | Francis Hogan | 6 | Son | — | Illinois |
| 13 | James Flannigan | 33 | Head | Clerk | Illinois |
| 14 | Mabel Flannigan | 32 | Wife | — | England |
| 15 | Margaret Flannigan | 9 | Daughter | — | Illinois |
| 16 | James Flannigan | 4 | Son | — | Illinois |
| 17 | Bertha Miller | 53 | Head | — | Russia |
| 18 | Samuel Miller | 32 | Son | Salesman | Missouri |
| 19 | Harry Miller | 30 | Son | Salesman | Missouri |
| 20 | Sarah Miller | 27 | Daughter | Stenographer | Pennsylvania |
| 21 | John Miller | 22 | Son | — | Missouri |
| 22 | Rose Miller | 21 | Daughter | — | Missouri |
| 23 | William Miller | 20 | Son | Salesman | Missouri |
| 24 | Lena Cohn | 33 | Daughter | — | Missouri |
| 25 | Alice Williamson | 45 | Head | — | Illinois |
| 26 | Edith Williamson | 19 | Daughter | — | Oklahoma |
| 27 | Judson Mills | 21 | Lodger | Clerk | Illinois |
| 28 | Wilmore Mills | 19 | Lodger | Clerk | Illinois |
| 29 | Richard Clarke | 44 | Head | Foreman | Michigan |
| 30 | Maude Clarke | 35 | Wife | — | Indiana |
| 31 | John Tobin | 44 | Lodger | Manager | New York |
| 32 | Morris Morris | 64 | Head | Proprietor | Germany |
| 33 | Bertha Morris | 65 | Wife | — | Germany |
| 34 | Hattie Morris | 28 | Daughter | Stenographer | New York |
| 35 | David Lifler | 35 | Son-in-law | Clerk | Illinois |
| 36 | Sarah Lifler | 35 | Daughter | — | New York |
| 37 | Peter Larsen | 53 | Head | Conductor | Denmark |
| 38 | Mary Larsen THIS PERSON | 51 | Wife | — | Denmark |
| 39 | George Gardner | 26 | Son-in-law | Clerk | Illinois |
| 40 | Annie Gardner | 22 | Daughter | — | Illinois |
| 41 | George Jr Gardner | 0 | Grand-son | — | Illinois |
| 42 | John Winders | 34 | Head | Repairman | Missouri |
| 43 | Frances Winders | 27 | Wife | — | Illinois |
| 44 | George Christos | 38 | Head | Proprietor | Greece |
| 45 | Sigrid Christos | 31 | Wife | — | Denmark |
| 46 | Harry Christos | 5 | Son | — | Iowa |
| 47 | June Christos | 3 | Daughter | — | Illinois |
| 48 | Frederick Nelson | 30 | Head | Salesman | Wisconsin |
| 49 | Theresa Nelson | 30 | Wife | — | Minnesota |
| 50 | Bernita Nelson | 2 | Daughter | — | Illinois |
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)