MN
Margaret Nelson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Winneshiek-County, Iowa
Our Model Tree links this Margaret Nelson across the 1920, 1930 and 1940 US Censuses in Winneshiek-County, Iowa (XGBoost, ~Confirmed), with identified parents Jacob & Mary — first a daughter (b.~1917), then head of a 5-person household.
Age 23
b. ~1917
Female
Daughter
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Winneshiek-County, Iowa |
| Surname | Nelson |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Decorah City |
| 1935 Residence (County) | Winneshiek |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | C 4 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Decorah City |
| Est. Birth Year | ~1917 |
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 |
|---|---|---|---|---|
| Hazel Nelson | Daughter | — | 21 | ~1919 |
| Margaret Nelson | Daughter | — | 23 | ~1917 |
| Mary Nelson | Daughter | — | 26 | ~1914 |
| Mary Nelson | Head | — | 53 | ~1887 |
| Walter Nelson | Son | — | 20 | ~1920 |
Census Appearances
1920
Winneshiek, Iowa
Daughter, age 3
Winneshiek, Iowa · implied b. ~1917 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Margaret J. |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Minnesota |
| Occupation | none |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Winneshiek, Iowa
Daughter, age 13
Winneshiek, Iowa · implied b. ~1917 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Margaret J. |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Minnesota |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Winneshiek-County, Iowa
Daughter, age 23
Winneshiek-County, Iowa · implied b. ~1917 — 5 household members
| Surname | Nelson |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Decorah City |
| 1935 Residence (County) | Winneshiek |
| Income (1939) | 0 |
| Highest Grade | C 4 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 Nelson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Jacob Nelson (~0.92 confidence) and mother Mary Nelson (~0.92 confidence) and mother Mary Nelson (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Jacob Nelson
b. ~1887
Source father
● Household
· direct · ~0.92
Mother
Mary Nelson
b. ~1887
Source mother
● Household
· direct · ~0.92
Mother
Mary Nelson
b. ~1887
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Margaret Nelson
Daughter · 1940 · age 23 · b. ~1917 · Iowa
★ You are viewing this record
Sibling
Hazel Nelson
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Walter Nelson
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Nelson
Sibling · 1940 · age 26
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 — Winneshiek-County, Iowa
Open full size
1940 US Federal Census — Winneshiek-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01213-00602)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Mary Nelson | 53 | Head | — | Iowa |
| 42 | Mary Nelson | 26 | Daughter | Secretary | Iowa |
| 43 | Margaret Nelson THIS PERSON | 23 | Daughter | — | Iowa |
| 44 | Hazel Nelson | 21 | Daughter | — | Iowa |
| 45 | Walter Nelson | 20 | Son | — | Iowa |
| 46 | Thomas J. Elwick | 72 | Head | — | Iowa |
| 47 | Celia O. Elwick | 69 | Wife | — | Minnesota |
| 48 | Everett O. Weigle | 34 | Head | County Agriculture | Iowa |
| 49 | Lenore Weigle | 34 | Wife | — | Iowa |
| 50 | Carol Ann Weigle | 1 | Daughter | — | Iowa |
| 51 | Claude O. Yetter | 35 | Head | Watch Maker | Iowa |
| 52 | Mildred Yetter | 32 | Wife | — | Iowa |
| 53 | Margaret Lou Yetter | 7 | Daughter | — | Iowa |
| 54 | Robert H. Yetter | 6 | Son | — | Iowa |
| 55 | Henry C. Bensch | 50 | Head | Retail Furniture | Nebraska |
| 56 | Hazel O. Bensch | 42 | Wife | — | Iowa |
| 57 | Robert C. Bensch | 11 | Son | — | Iowa |
| 58 | Carol Bensch | 8 | Daughter | — | Iowa |
| 59 | Katie Ahrens | 66 | Mother-in-law | — | Iowa |
| 60 | Charles Knox | 42 | Head | Salesman | Iowa |
| 61 | Lucille O. Knox | 38 | Wife | — | Iowa |
| 62 | Keith Knox | 11 | Son | — | Iowa |
| 63 | Simons O. Johnson | 65 | Head | Editor | Norway |
| 64 | Anna Johnson | 58 | Wife | — | Norway |
| 65 | Albert G. Christian | 76 | Head | — | Iowa |
| 66 | Jessie Christian | 69 | Wife | — | Iowa |
| 67 | Herb Hutchinson | 68 | Head | — | Iowa |
| 68 | Agnes Hutchinson | 65 | Wife | — | Vermont |
| 69 | Lawrence V. Buckton | 35 | Head | Teacher | Iowa |
| 70 | Elizabeth Buckton | 35 | Wife | — | Iowa |
| 71 | Robert W. Buckton | 8 | Son | — | Iowa |
| 72 | Cora E. Simpson | 67 | Mother-in-law | — | Iowa |
| 73 | Mable Bates | 62 | Lodger | Teacher | Iowa |
| 74 | Lou Ellefson | 66 | Head | — | Iowa |
| 75 | Harold O. Hoffman | 44 | Head | Combination Man | Iowa |
| 76 | Carrie Hoffman | 42 | Wife | — | Illinois |
| 77 | Harold Jr. Hoffman | 19 | Son | — | Iowa |
| 78 | Robert Hoffman | 16 | Son | — | Iowa |
| 79 | Dorothy Jean Hoffman | 5 | Daughter | — | Iowa |
| 80 | Even H. Olson | 63 | Head | Foreman Mailing Dept. | Iowa |
Pedigree Summary
Margaret + 3 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)