MN
Margaret Nolan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Brown-County, Illinois
Our Model Tree links this Margaret Nolan across the 1930 and 1940 US Censuses in Brown-County, Illinois (XGBoost, ~Confirmed) — first a daughter (b.~1929), then head of a 8-person household.
Age 11
b. ~1929
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Brown-County, Illinois |
| Surname | Nolan |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Pea Ridge |
| 1935 Residence (County) | Brown |
| Additional Details | |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Pea Ridge |
| 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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Thomas Nolan | Son | — | 2 | ~1938 |
| Robert Nolan | Son | — | 4 | ~1936 |
| Eulalia Nolan | Spouse | — | 34 | ~1906 |
| Marilyn Nolan | Daughter | — | 7 | ~1933 |
| Agnes Nolan | Daughter | — | ~1940 | |
| Margaret Nolan | Daughter | — | 11 | ~1929 |
| Norma Nolan | Daughter | — | 10 | ~1930 |
| Charles Nolan | Head | — | 44 | ~1896 |
Census Appearances
1930
Brown, Illinois
Daughter, age 1
Brown, Illinois · implied b. ~1929 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nolan |
| Given Name | Margaret E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Brown-County, Illinois
Daughter, age 11
Brown-County, Illinois · implied b. ~1929 — 8 household members
| Surname | Nolan |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Pea Ridge |
| 1935 Residence (County) | Brown |
| Highest Grade | No 5 |
| 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 Margaret Nolan across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Margaret Nolan
Daughter · 1940 · age 11 · b. ~1929 · Illinois
★ You are viewing this record
Sibling
Thomas Nolan
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Norma Nolan
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Agnes Nolan
Sibling · 1940 · age
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Nolan
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marilyn Nolan
Sibling · 1940 · age 7
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 — Brown-County, Illinois
Open full size
1940 US Federal Census — Brown-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00761-00185)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Grant Lemma | 65 | Head | Laborer | Ohio |
| 42 | Edna Lemma | 55 | Wife | — | Illinois |
| 43 | Elizabeth Lemma | 15 | Daughter | — | Illinois |
| 44 | Junior Lemma | 13 | Son | — | Illinois |
| 45 | Charles Christian | 64 | Head | Laborer | Illinois |
| 46 | Philena Christian | 60 | Wife | — | Illinois |
| 47 | Russell Buckley | 31 | Head | Farmer | Illinois |
| 48 | Edith Buckley | 29 | Wife | — | Illinois |
| 49 | Howard Buckley | 9 | Son | — | Illinois |
| 50 | Bobby Buckley | 6 | Son | — | Illinois |
| 51 | George Cain | 72 | Head | — | Illinois |
| 52 | Sudie Cain | 49 | Wife | — | Illinois |
| 53 | Ralph Hensche | 45 | Head | Farmer | Illinois |
| 54 | Lile Hensche | 57 | Brother | Farm Laborer | Illinois |
| 55 | John Hensche | 48 | Brother | Farm Laborer | Illinois |
| 56 | Oliver Knight | 52 | Head | Laborer | Illinois |
| 57 | Stella Knight | 47 | Wife | — | Illinois |
| 58 | Robert Taylor | 64 | Head | — | Indiana |
| 59 | Percy Yocum | 43 | Head | Grader Operator | Missouri |
| 60 | Edna Yocum | 42 | Wife | — | Illinois |
| 61 | Violet Yocum | 18 | Daughter | — | Illinois |
| 62 | Raymond Christian | 32 | Head | Farmer | Illinois |
| 63 | Anna Christian | 27 | Wife | — | Illinois |
| 64 | Vera Christian | 3 | Daughter | — | Illinois |
| 65 | Charles Nolan | 44 | Head | Farmer & Gardener | Illinois |
| 66 | Eulalia Nolan | 34 | Wife | — | Illinois |
| 67 | Margaret Nolan THIS PERSON | 11 | Daughter | — | Illinois |
| 68 | Norma Nolan | 10 | Daughter | — | Illinois |
| 69 | Marilyn Nolan | 7 | Daughter | — | Illinois |
| 70 | Robert Nolan | 4 | Son | — | Illinois |
| 71 | Thomas Nolan | 2 | Son | — | Illinois |
| 72 | Agnes Nolan | 0 | Daughter | — | Illinois |
| 73 | Bert Clayton | 55 | Head | — | Illinois |
| 74 | Ida Clayton | 56 | Wife | — | Illinois |
| 75 | Clarence Clayton | 19 | Son | Farm Laborer | Illinois |
| 76 | Loyelle Clayton | 22 | Son | Farmer | Illinois |
| 77 | Mary Clayton | 21 | Daughter | — | Illinois |
| 78 | Richard Black | 53 | Head | Laborer | Illinois |
| 79 | Frank Black | 53 | Son | Farm Laborer | Illinois |
| 80 | Louella Black | 64 | Daughter | — | 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)