NB
Nancy Brown — 1940 US Census Record
Model Tree available1940 United States Federal Census · Woodbury-County, Iowa
Our Model Tree links this Nancy Brown across the 1920, 1930 and 1940 US Censuses in Woodbury-County, Iowa (XGBoost, ~Confirmed), with identified parents Harold & Harrold — first a spouse (b.~1914), then head of a 4-person household.
Age 26
b. ~1914
Female
Spouse
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Woodbury-County, Iowa |
| Surname | Brown |
| Given Name | Nancy |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Sioux City |
| 1935 Residence (County) | Woodbury |
| Additional Details | |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Sioux City |
| Est. Birth Year | ~1914 |
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 Nancy | Age | Birth yr |
|---|---|---|---|---|
| George Brown | Head | — | 34 | ~1906 |
| James Brown | Son | — | 7 | ~1933 |
| Robert Brown | Son | — | 10 | ~1930 |
| Nancy Brown | Spouse | — | 26 | ~1914 |
Census Appearances
1920
Woodbury, Iowa
Daughter, age 5
Woodbury, Iowa · implied b. ~1915 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Natalie |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | New York |
| Mother's Birthplace | Massachusetts |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Woodbury, Iowa
Daughter, age 15
Woodbury, Iowa · implied b. ~1915 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Natalie |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | New York |
| Mother's Birthplace | Massachusetts |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Woodbury-County, Iowa
Spouse, age 26
Woodbury-County, Iowa · implied b. ~1914 — 4 household members
| Surname | Brown |
| Given Name | Nancy |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Sioux City |
| 1935 Residence (County) | Woodbury |
| Highest Grade | No 7 |
| 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 Nancy Brown across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Harold Brown (~0.92 confidence) and father Harrold Brown (~0.92 confidence) and mother Ruby Brown (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Harold Brown
b. ~1886
Source father
● Household
· direct · ~0.92
Father
Harrold Brown
b. ~1887
Source father
● Household
· direct · ~0.92
Mother
Ruby Brown
b. ~1888
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Nancy Brown
Spouse · 1940 · age 26 · b. ~1914 · Iowa
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Woodbury-County, Iowa
Open full size
1940 US Federal Census — Woodbury-County, Iowa
Page Contents
35 people indexed on this census page (nara:1940:m-t0627-01214-00692)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Norman Stewart | 8 | Nephew | — | Iowa |
| 42 | Jerry Stewart | 7 | Nephew | — | Iowa |
| 43 | William Dean | 53 | Brother | — | Iowa |
| 44 | Thomas Dickson | 55 | Head | Farmer | Germany |
| 45 | Mellard Jensen | 68 | Partner | — | Denmark |
| 47 | Peter Brown | 83 | Head | Farmer | Sweden |
| 48 | Solomon Bergstrom | 73 | Sister | — | Sweden |
| 49 | George Brown | 34 | Head | Common Laborer | Iowa |
| 50 | Nancy Brown THIS PERSON | 26 | Wife | — | Iowa |
| 51 | Robert Brown | 10 | Son | — | Iowa |
| 52 | James Brown | 7 | Son | — | Iowa |
| 54 | Raymond Groves | 28 | Head | Laborer | Iowa |
| 55 | Opal Groves | 23 | Wife | — | Iowa |
| 56 | Virginia Groves | 3 | Daughter | — | Iowa |
| 57 | Tony Harbaugh | 52 | Father in law | Common Laborer | Iowa |
| 58 | Ora Harbaugh | 42 | Mother in law | — | Iowa |
| 59 | Chester Harbaugh | 22 | Brother in law | Common Laborer | Iowa |
| 60 | Walter Harbaugh | 14 | Brother in law | — | Iowa |
| 61 | William Loring | 65 | Head | Farmer | Germany |
| 62 | Clara Loring | 62 | Wife | — | Germany |
| 64 | Wm Goodwin | 62 | Head | Common Laborer | Iowa |
| 66 | Wm Guilleme | 38 | Head | Common Laborer | Iowa |
| 67 | Venita Guilleme | 39 | Wife | — | Iowa |
| 68 | Lawrence Guilleme | 17 | Son | Printer | Iowa |
| 69 | Eugene Guilleme | 16 | Son | New Worker | Iowa |
| 70 | Rita Guilleme | 15 | Daughter | — | Iowa |
| 71 | Glenn Guilleme | 13 | Son | — | Iowa |
| 72 | Theresa Guilleme | 12 | Daughter | — | Iowa |
| 73 | Bernadette Guilleme | 5 | Daughter | — | Iowa |
| 75 | Harry Irwin | 42 | Head | Common Laborer | Iowa |
| 76 | Marian Irwin | 35 | Wife | — | Iowa |
| 77 | Pauline Irwin | 15 | Daughter | — | Iowa |
| 78 | Harry J Irwin | 13 | Son | — | Iowa |
| 79 | William Irwin | 11 | Son | — | Iowa |
| 80 | Mary Lou Irwin | 8 | Daughter | — | Iowa |
Pedigree Summary
Nancy
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)