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Margaret Arnold — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Margaret Arnold across the 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a daughter (b.~1931), then head of a 11-person household.
Age 9
b. ~1931
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Arnold |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Highest Grade | No 1 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1931 |
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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| John Arnold | Son | — | 5 | ~1935 |
| Edna Arnold | Daughter | — | 15 | ~1925 |
| Lois Arnold | Daughter | — | 11 | ~1929 |
| Morgan Arnold | Son | — | 7 | ~1933 |
| Modest Arnold | Daughter | — | 12 | ~1928 |
| Annie Arnold | Spouse | — | 45 | ~1895 |
| Ephraim Arnold | Son | — | 14 | ~1926 |
| Ephraim Arnold | Head | — | 47 | ~1893 |
| Rosanna Arnold | Daughter | — | 17 | ~1923 |
| Margaret Arnold | Daughter | — | 9 | ~1931 |
| Willie White | Other | — | 34 | ~1906 |
Census Appearances
1930
Cook, Illinois
Daughter, age
Cook, Illinois · implied b. ~1930 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Arnold |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Georgia |
| Mother's Birthplace | Georgia |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Daughter, age 9
Cook-County, Illinois · implied b. ~1931 — 11 household members
| Surname | Arnold |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Highest Grade | No 1 |
| 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 Arnold across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Margaret Arnold
Daughter · 1940 · age 9 · b. ~1931 · Illinois
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Sibling
Morgan Arnold
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edna Arnold
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Arnold
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lois Arnold
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ephraim Arnold
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Modest Arnold
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rosanna Arnold
Sibling · 1940 · age 17
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 — Cook-County, Illinois
Open full size
1940 US Federal Census — Cook-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00977-00754)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Arthur Carter | 56 | Head | Barber | Indiana |
| 42 | Millie Carter | 46 | Wife | Maid | Illinois |
| 43 | John Mccall | 34 | Head | Molder | Alabama |
| 44 | Pearl Mccall | 39 | Wife | Laundress | Alabama |
| 45 | Mattie Mccall | 15 | Daughter | New Worker | Alabama |
| 46 | Annie Mccall | 14 | Daughter | New Worker | Illinois |
| 47 | Charles Mccall | 12 | Son | — | Illinois |
| 48 | Walter Washington | 19 | Stepson | — | Alabama |
| 49 | Lucia Mcchee | 70 | Mother | — | Alabama |
| 50 | William Roach | 42 | Head | Pullman Porter | Texas |
| 51 | Annie Williams | 40 | Partner | Beautician | Georgia |
| 52 | Lillian Sharp | 39 | Head | Maid | Georgia |
| 53 | William Sharp | 18 | Son | Porter | Georgia |
| 54 | Ike Allen | 22 | Son | Porter | Georgia |
| 55 | Eunice Allen | 19 | Daughter-in-law | — | Georgia |
| 56 | Dorothy Allen | 1 | Granddaughter | — | Illinois |
| 57 | Johnnie Sullivan | 3 | Grandson | — | Illinois |
| 58 | Charles Mcfarland | 37 | Head | Townsman | Indiana |
| 59 | Jessie Mcfarland | 37 | Wife | Factory Employee | Alabama |
| 60 | Faye B. Mcfarland | 29 | Sister-in-law | Factory Employee | Alabama |
| 61 | Maurine Leganer | 13 | Sister-in-law | — | Illinois |
| 62 | Zilma Lewis | 30 | Lodger | Crane Operator | Georgia |
| 63 | Line Extra | None | Extra | — | — |
| 64 | Ephraim Arnold | 47 | Head | Porter | Mississippi |
| 65 | Annie Arnold | 45 | Wife | — | Tennessee |
| 66 | Rosanna Arnold | 17 | Daughter | — | Illinois |
| 67 | Edna Arnold | 15 | Daughter | — | Illinois |
| 68 | Ephraim Arnold | 14 | Son | Porter | Illinois |
| 69 | Modest Arnold | 12 | Daughter | — | Illinois |
| 70 | Lois Arnold | 11 | Daughter | — | Illinois |
| 71 | Margaret Arnold THIS PERSON | 9 | Daughter | — | Illinois |
| 72 | Morgan Arnold | 7 | Son | — | Illinois |
| 73 | John Arnold | 5 | Son | — | Illinois |
| 74 | Willie White | 34 | Lodger | — | Alabama |
| 75 | Delpha Jones | 63 | Head | — | Alabama |
| 76 | Mary Jones | 25 | Daughter | — | Alabama |
| 77 | Willie Jones | 20 | Son | Laborer | Alabama |
| 78 | David Jones | 28 | Son | Laborer | Alabama |
| 79 | Oscar Jones | 5 | Grandson | — | Illinois |
| 80 | Charlotte Lackland | 57 | Head | — | Mississippi |
Related Census Records
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)