MN
Marie Nelson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Scott-County, Iowa
Our Model Tree links this Marie Nelson across the 1920, 1930 and 1940 US Censuses in Scott-County, Iowa (XGBoost, ~Confirmed) — first a spouse (b.~1897), then head of a 4-person household.
Age 43
b. ~1897
Female
Spouse
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Scott-County, Iowa |
| Surname | Nelson |
| Given Name | Marie |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Some House |
| 1935 Residence (County) | Scott |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same Place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Davenport City |
| Est. Birth Year | ~1897 |
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 Marie | Age | Birth yr |
|---|---|---|---|---|
| Marie Nelson | Spouse | — | 43 | ~1897 |
| Lois Nelson | Daughter | — | 15 | ~1925 |
| Frank Nelson | Head | — | 48 | ~1892 |
| Francis Nelson | Daughter | — | 21 | ~1919 |
Census Appearances
1920
Scott, Iowa
Spouse, age 22
Scott, Iowa · implied b. ~1898 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Marie |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Married |
| Birthplace | Iowa |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | German |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Scott, Iowa
Spouse, age 33
Scott, Iowa · implied b. ~1897 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Maria F. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 20 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Scott-County, Iowa
Spouse, age 43
Scott-County, Iowa · implied b. ~1897 — 4 household members
| Surname | Nelson |
| Given Name | Marie |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Some House |
| 1935 Residence (County) | Scott |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 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 Marie Nelson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Marie Nelson
Spouse · 1940 · age 43 · b. ~1897 · Iowa
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Scott-County, Iowa
Open full size
1940 US Federal Census — Scott-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01202-00687)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Earl Wulf | 51 | Head | Foreman Machine Shop | Michigan |
| 42 | Ruth Wulf | 32 | Wife | — | Illinois |
| 43 | Earl Jr Wulf | 15 | Son | — | Iowa |
| 44 | Lester Wulf | 13 | Son | — | Iowa |
| 45 | Louise Wulf | 12 | Daughter | — | Iowa |
| 46 | Raymond Wulf | 3 | Son | — | Iowa |
| 47 | Patricia Wulf | 1 | Daughter | — | Iowa |
| 48 | Carl Dahl | 35 | Head | Truck Driver | Iowa |
| 49 | Alice Dahl | 31 | Wife | — | Illinois |
| 50 | Rose Dahl | 2 | Daughter | — | Iowa |
| 51 | Arthur Boyer | 24 | Head | Shipping Clerk | Iowa |
| 52 | Violet Boyer | 30 | Wife | — | Iowa |
| 53 | James Boyer | 11 | Son | — | Iowa |
| 54 | Dan Goldsmith | 20 | Lodger | Clerk | Iowa |
| 55 | George Allmendinger | 48 | Head | Weather Observer | Missouri |
| 56 | Edie Allmendinger | 38 | Wife | — | Texas |
| 57 | Robert Allmendinger | 14 | Son | — | Missouri |
| 58 | Diane Allmendinger | 11 | Son | — | Michigan |
| 59 | John Cranzell | 31 | Head | Gas Station Attendant | Iowa |
| 60 | Elsie Cranzell | 25 | Wife | Stenographer | Iowa |
| 61 | Frank Nelson | 48 | Head | Painting Contractor | Iowa |
| 62 | Marie Nelson THIS PERSON | 43 | Wife | — | Iowa |
| 63 | Francis Nelson | 21 | Daughter | Stenographer | Iowa |
| 64 | Lois Nelson | 15 | Daughter | — | Iowa |
| 65 | Phil Dahlin | 33 | Head | Installing Man | Iowa |
| 66 | Ena Dahlin | 33 | Wife | — | Iowa |
| 67 | Beverly Dahlin | 12 | Daughter | — | Iowa |
| 68 | Doris Dahlin | 7 | Daughter | — | Iowa |
| 69 | Dixie Dahlin | 2 | Son | — | Iowa |
| 70 | Lawrence Henry | 40 | Head | Punch Press Operator | Iowa |
| 71 | Henrietta Henry | 44 | Wife | Sandwich Maker | Iowa |
| 72 | Elmer Stevenson | 43 | Head | Shipping Room | Illinois |
| 73 | Laura Stevenson | 41 | Wife | Packer | Missouri |
| 74 | Raymond Stevenson | 24 | Son | Salesman | Iowa |
| 75 | Evelyn Geyra | 26 | Niece | Telephone Operator | Iowa |
| 76 | Ending Block 348 Beginning Block 292 | None | — | — | — |
| 77 | Jens Jensen | 43 | Head | Electrician | Iowa |
| 78 | Marie Jensen | 39 | Wife | — | Iowa |
| 79 | Eugene Jensen | 20 | Son | Repairman Appliances | Iowa |
| 80 | John Collins | 36 | Head | Engineer | 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)