LN
Lois Nelson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Audubon-County, Iowa
Our Model Tree links this Lois Nelson across the 1930 and 1940 US Censuses in Audubon-County, Iowa (XGBoost, ~Confirmed) — first a daughter (b.~1929), then head of a 6-person household.
Age 11
b. ~1929
Female
Daughter
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Audubon-County, Iowa |
| Surname | Nelson |
| Given Name | Lois Jean |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Iowa |
| Additional Details | |
| Highest Grade | No 5 |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Oakfield |
| Est. Birth Year | ~1929 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Lois | Age | Birth yr |
|---|---|---|---|---|
| Garland Nelson | Head | — | 36 | ~1904 |
| Lois Nelson | Daughter | — | 11 | ~1929 |
| Jerry Nelson | Son | — | 3 | ~1937 |
| Leon Nelson | Son | — | 9 | ~1931 |
| Florence Nelson | Spouse | — | 31 | ~1909 |
| Joyce Nelson | Daughter | — | 1 | ~1939 |
Census Appearances
1930
Audubon, Iowa
Daughter, age 1
Audubon, Iowa · implied b. ~1929 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Lois J. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Audubon-County, Iowa
Daughter, age 11
Audubon-County, Iowa · implied b. ~1929 — 6 household members
| Surname | Nelson |
| Given Name | Lois Jean |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Iowa |
| Highest Grade | No 5 |
| 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 Lois Nelson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Lois Nelson
Daughter · 1940 · age 11 · b. ~1929 · Iowa
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Sibling
Joyce Nelson
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leon Nelson
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jerry Nelson
Sibling · 1940 · age 3
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 — Audubon-County, Iowa
Open full size
1940 US Federal Census — Audubon-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01137-01028)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Albert Petersen | 37 | Head | Farming | Iowa |
| 2 | Lizzie Petersen | 36 | Wife | — | Iowa |
| 3 | Matthew Smith | 29 | Head | Farming | Iowa |
| 4 | Grace Smith | 65 | Mother | — | Iowa |
| 5 | Gussie Smith | 49 | Sister | — | Iowa |
| 6 | Andrew Christensen | 59 | Head | Farming | Iowa |
| 7 | Annie Christensen | 58 | Wife | — | Nebraska |
| 8 | Glenn Jensen | 20 | Hired man | Hired Man | Iowa |
| 9 | Carl M Petersen | 44 | Head | Farming | Iowa |
| 10 | Clara Petersen | 43 | Wife | — | Iowa |
| 11 | Helda Petersen | 21 | Daughter | — | Iowa |
| 12 | Mary Petersen | 18 | Daughter | — | Iowa |
| 13 | Pearl Petersen | 15 | Daughter | — | Iowa |
| 14 | Ruby Petersen | 12 | Daughter | — | Iowa |
| 15 | Harold Kanwal | 25 | Head | Farming | Iowa |
| 16 | Mary Kanwal | 23 | Wife | — | Iowa |
| 17 | Joseph Kanwal | 4 | Son | — | Iowa |
| 18 | William Kanwal | 2 | Son | — | Iowa |
| 19 | Mary Jensen | 54 | Head | — | Iowa |
| 20 | Laura Jensen | 27 | Daughter | Helper On The Farm | Iowa |
| 21 | Erhardt Jensen | 19 | Son | Home Helper | Iowa |
| 22 | Marvin Leander | 35 | Head | Farming | Iowa |
| 23 | Ruth Leander | 18 | Wife | — | Iowa |
| 24 | Jens R Hansen | 61 | Head | Farming | Denmark |
| 25 | Mary Hansen | 59 | Wife | — | Iowa |
| 26 | Emory Thomsen | 34 | Son in law | Hired Man | Iowa |
| 27 | Edna Thomsen | 30 | Daughter | — | Iowa |
| 28 | Jimmie Thomsen | 6 | Grandson | — | Iowa |
| 29 | Harold Thomsen | 5 | Grandson | — | Iowa |
| 30 | Nels Andersen | 60 | Head | Farming | Denmark |
| 31 | Marie Andersen | 61 | Wife | — | Denmark |
| 32 | Adolph Andersen | 34 | Son | — | Denmark |
| 33 | Christina Andersen | 21 | Neice | Hired Help | Iowa |
| 34 | Joy Christensen | 19 | Hired man | Hired Man | Iowa |
| 35 | Garland Nelson | 36 | Head | Farming | Iowa |
| 36 | Florence Nelson | 31 | Wife | — | Iowa |
| 37 | Lois Jean Nelson THIS PERSON | 11 | Daughter | — | Iowa |
| 38 | Leon Nelson | 9 | Son | — | Iowa |
| 39 | Jerry Nelson | 3 | Son | — | Iowa |
| 40 | Joyce Nelson | 1 | Daughter | — | Iowa |
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)