MN
Martha Nelson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Vermilion-County, Illinois
Our Model Tree links this Martha Nelson across the 1930 and 1940 US Censuses in Vermilion-County, Illinois (XGBoost, ~Confirmed) — first a daughter (b.~1915), then head of a 8-person household.
Age 25
b. ~1915
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Vermilion-County, Illinois |
| Surname | Nelson |
| Given Name | Martha |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Rural District |
| 1935 Residence (County) | Vermilion |
| Additional Details | |
| Hours Worked | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Rural District |
| Est. Birth Year | ~1915 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Martha | Age | Birth yr |
|---|---|---|---|---|
| Martha Nelson | Daughter | — | 25 | ~1915 |
| Anna Nelson | Daughter | — | 16 | ~1924 |
| Robert Nelson | Son | — | 11 | ~1929 |
| Anna Nelson | Spouse | — | 47 | ~1893 |
| Carl Nelson | Son | — | 20 | ~1920 |
| Viola Nelson | Daughter | — | 14 | ~1926 |
| Howard Nelson | Son | — | 4 | ~1936 |
| John Nelson | Head | — | 51 | ~1889 |
Census Appearances
1930
Vermilion, Illinois
Daughter, age 15
Vermilion, Illinois · implied b. ~1915 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Martha |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Vermilion-County, Illinois
Daughter, age 25
Vermilion-County, Illinois · implied b. ~1915 — 8 household members
| Surname | Nelson |
| Given Name | Martha |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Rural District |
| 1935 Residence (County) | Vermilion |
| Hours Worked | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 Martha Nelson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Martha Nelson
Daughter · 1940 · age 25 · b. ~1915 · Illinois
★ You are viewing this record
Sibling
Viola Nelson
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anna Nelson
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Carl Nelson
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Nelson
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Howard Nelson
Sibling · 1940 · age 4
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 — Vermilion-County, Illinois
Open full size
1940 US Federal Census — Vermilion-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00897-00072)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Dwight Orr | 53 | Head | — | Illinois |
| 42 | Harold Orr | 24 | Son | Laborer | Illinois |
| 43 | Eugene Orr | 21 | Son | Laborer | Illinois |
| 44 | Leon Orr | 19 | Son | Laborer | Illinois |
| 45 | Curtis Orr | 13 | Son | — | Illinois |
| 46 | Mildred Gillengly | 23 | In-law | — | Ohio |
| 47 | Frank Hans | 63 | Head | Farmer | Illinois |
| 48 | Cora Hans | 55 | Wife | — | Illinois |
| 49 | Van Buren Hans | 32 | Son | Laborer | Indiana |
| 50 | Millard Moore | 51 | Head | Farmer | Indiana |
| 51 | Besse Moore | 48 | Wife | — | Iowa |
| 52 | Cora Moore | 16 | Daughter | — | Iowa |
| 53 | Charles Moore | 12 | Son | — | Illinois |
| 54 | Laura Crawford | 77 | Head | — | Illinois |
| 55 | James Brooks | 66 | Head | Farmer | Illinois |
| 56 | Flossie Brooks | 37 | Daughter | School Teacher | Illinois |
| 57 | Margaret Brooks | 33 | Daughter | School Teacher | Illinois |
| 58 | Helen Brooks | 31 | Daughter | — | Illinois |
| 59 | Charles Blackford | 55 | Head | Farmer | Illinois |
| 60 | Minnie Blackford | 48 | Sister | — | Illinois |
| 61 | Martha Evans | 73 | Head | — | Illinois |
| 62 | Robert Evans | 49 | Son | Laborer | Illinois |
| 63 | John Evans | 46 | Son | Laborer | Illinois |
| 64 | Lawson Evans | 38 | Son | Laborer | Illinois |
| 65 | John C. Nelson | 51 | Head | Farmer | Illinois |
| 66 | Anna Nelson | 47 | Wife | — | Illinois |
| 67 | Martha Nelson THIS PERSON | 25 | Daughter | — | Illinois |
| 68 | Carl Nelson | 20 | Son | Laborer | Illinois |
| 69 | Anna M. Nelson | 16 | Daughter | — | Illinois |
| 70 | Viola Nelson | 14 | Daughter | — | Illinois |
| 71 | Robert Nelson | 11 | Son | — | Illinois |
| 72 | Howard Nelson | 4 | Son | — | Illinois |
| 73 | William T. Mcconnell | 68 | Head | Farmer | Ohio |
| 74 | Addie Mcconnell | 68 | Wife | — | Indiana |
| 75 | Harriet Chew | 47 | Head | — | Illinois |
| 76 | James Chew | 20 | Son | Laborer | Illinois |
| 77 | Louise Chew | 17 | Daughter | — | Illinois |
| 78 | Mary Chew | 14 | Daughter | — | Illinois |
| 79 | Elizabeth Chew | 14 | Daughter | — | Illinois |
| 80 | Samuel R. Love | 74 | Head | Farmer | Illinois |
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)