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Margaret Brown — 1940 US Census Record
Model Tree available1940 United States Federal Census · Le-Sueur-County, Minnesota
Our Model Tree links this Margaret Brown across the 1920, 1930 and 1940 US Censuses in Le-Sueur-County, Minnesota (XGBoost, ~Confirmed), with identified parents Maurice & Margaret — first a daughter (b.~1918), then head of a 5-person household.
Age 22
b. ~1918
Female
Daughter
Born: Minnesota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Le-Sueur-County, Minnesota |
| Surname | Brown |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Derrynane Twp |
| 1935 Residence (County) | Le Sueur |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Township / Ward | Derrynane Twp |
| Est. Birth Year | ~1918 |
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 1940 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Margaret Brown | Daughter | — | 22 | ~1918 |
| Mary Brown | Daughter | — | 24 | ~1916 |
| Maurice Brown | Head | — | 64 | ~1876 |
| Melvin Brown | Son | — | 15 | ~1925 |
| Margaret Brown | Spouse | — | 64 | ~1876 |
Census Appearances
1920
Le Sueur, …
Daughter, age 2
Le Sueur, Minnesota · implied b. ~1918 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Margaret E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Minnesota |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1930
Le Sueur, …
Daughter, age 12
Le Sueur, Minnesota · implied b. ~1918 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Minnesota |
| Can Read/Write | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Le-Sueur-County, Minnesota
Daughter, age 22
Le-Sueur-County, Minnesota · implied b. ~1918 — 5 household members
| Surname | Brown |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Derrynane Twp |
| 1935 Residence (County) | Le Sueur |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 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 Margaret Brown across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Maurice Brown (~0.92 confidence) and mother Margaret Brown (~0.92 confidence) and mother Margaret Brown (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Maurice Brown
b. ~1877
Source father
● Household
· direct · ~0.92
Mother
Margaret Brown
b. ~1876
Source mother
● Household
· direct · ~0.92
Mother
Margaret Brown
b. ~1876
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Margaret Brown
Daughter · 1940 · age 22 · b. ~1918 · Minnesota
★ You are viewing this record
Sibling
Mary Brown
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Melvin Brown
Sibling · 1940 · age 15
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 — Le-Sueur-County, Minnesota
Open full size
1940 US Federal Census — Le-Sueur-County, Minnesota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01933-00059)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | John W. O'Connell | 74 | Head | Farmer | Ohio |
| 42 | Katherine O'Connell | 74 | Wife | — | Minnesota |
| 43 | Francis O'Connell | 43 | Son | Farmer | Minnesota |
| 44 | Maurice H. Brown | 64 | Head | Farmer | Minnesota |
| 45 | Margaret Brown | 64 | Wife | — | Minnesota |
| 46 | Mary Brown | 24 | Daughter | — | Minnesota |
| 47 | Margaret Brown THIS PERSON | 22 | Daughter | — | Minnesota |
| 48 | Melvin Brown | 15 | Son | — | Minnesota |
| 49 | Norbert Schumacher | 42 | Head | Farmer | Minnesota |
| 50 | Helen Schumacher | 42 | Wife | — | Minnesota |
| 51 | Vincent Schumacher | 16 | Son | — | Minnesota |
| 52 | Eugene Schumacher | 15 | Son | — | Minnesota |
| 53 | Mary Schumacher | 13 | Daughter | — | Minnesota |
| 54 | Therese Schumacher | 11 | Daughter | — | Minnesota |
| 55 | Daniel Murphy | 64 | Head | Farmer | Minnesota |
| 56 | Maurice Murphy | 62 | Brother | Farmer | Minnesota |
| 57 | Margaret Murphy | 58 | Sister | — | Minnesota |
| 58 | Gerald O'Connell | 44 | Head | Farmer | Minnesota |
| 59 | Mary O'Connell | 45 | Wife | — | Minnesota |
| 60 | John W. O'Connell | 18 | Son | — | Minnesota |
| 61 | William D. O'Connell | 76 | Father | Farm | Minnesota |
| 62 | Hannah O'Connell | 77 | Mother | — | Minnesota |
| 63 | Robert E. Lee | 15 | Lodger | — | Minnesota |
| 64 | Frank Henderscheid | 25 | Head | Farm | Minnesota |
| 65 | Ludmilla Henderscheid | 23 | Wife | — | Minnesota |
| 66 | Lucille Henderscheid | 3 | Daughter | — | Minnesota |
| 67 | Joseph Henderscheid | 27 | Brother | Farm | Minnesota |
| 68 | Stella Henderscheid | 25 | Sister-in-law | — | Minnesota |
| 69 | Melvin Henderscheid | 1 | Nephew | — | Minnesota |
| 70 | Emmett Halloran | 27 | Head | Farm | Minnesota |
| 71 | Dorothy Halloran | 23 | Wife | — | Minnesota |
| 72 | John Duane | 81 | Head | — | Pennsylvania |
| 73 | Ellen Duane | 75 | Wife | — | Minnesota |
| 74 | John Duane | 36 | Son | Farm | Minnesota |
| 75 | George Duane | 35 | Son | Farm | Minnesota |
| 76 | Ben Lakin | 42 | Head | Laborer | Minnesota |
| 77 | Mary Lakin | 27 | Wife | — | Minnesota |
| 78 | Mary Ann Lakin | 9 | Daughter | — | Minnesota |
| 79 | Elizabeth Lakin | 7 | Daughter | — | Minnesota |
| 80 | John Holden | 45 | Head | Farmer | Minnesota |
Related Census Records
Pedigree Summary
Margaret + 2 siblings
Gen 1 · 3 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)