MJ
Margaret Jones — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Margaret Jones across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1882), then head of a 3-person household.
Age 58
b. ~1882
Female
Spouse
Born: Wales
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Jones |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 58 |
| Marital Status | Married |
| Birthplace | Wales |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same Place |
| Birth Country | Wales |
| Birthplace (normalized) | wales |
| Township / Ward | Chicago |
| Est. Birth Year | ~1882 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Jno Jones | Head | — | 59 | ~1881 |
| John Jones | Son | — | 28 | ~1912 |
| Margaret Jones | Spouse | — | 58 | ~1882 |
Census Appearances
1920
Champaign, Illinois
Spouse, age 37
Champaign, Illinois · implied b. ~1883 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jones |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Wales |
| Year of Immigration | 1908 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Wales |
| Mother's Birthplace | Wales |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Welsh |
| Birth Country | Wales |
| Year of Naturalization | 1916 |
| Birthplace (normalized) | wales |
1930
Cook, Illinois
Spouse, age 47
Cook, Illinois · implied b. ~1883 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jones |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Wales |
| Naturalization Status | Naturalized |
| Year of Immigration | 1902 |
| Age at First Marriage | 23 |
| Father's Birthplace | Wales |
| Mother's Birthplace | Wales |
| Can Read/Write | Yes |
| Mother Tongue | Welsh |
| Birth Country | Wales |
| Birthplace (normalized) | wales |
1940
Cook-County, Illinois
Spouse, age 58
Cook-County, Illinois · implied b. ~1882 — 3 household members
| Surname | Jones |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 58 |
| Marital Status | Married |
| Birthplace | Wales |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Class of Worker | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same Place |
| Birth Country | Wales |
| Birthplace (normalized) | wales |
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 Jones across 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage.
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This person
Anchor record
Margaret Jones
Spouse · 1940 · age 58 · b. ~1882 · Illinois
★ You are viewing this record
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-t0627-00994-00296)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Gertrude Prathe | 38 | Wife | — | Illinois |
| 42 | Bertha Schmitt | 63 | Mother in law | — | Illinois |
| 43 | Arthur Schmitt | 25 | Brother in law | — | Illinois |
| 44 | Hugh Conner | 27 | Head | Printer | Illinois |
| 45 | Amelia Conner | 22 | Wife | Cuts Labels | Illinois |
| 46 | Margaret Conner | 58 | Mother | — | Illinois |
| 47 | Edward Conner | 29 | Brother | Solicitor | Illinois |
| 48 | James Dymich | 57 | Head | Upholsterer | Germany |
| 49 | Rose Dymich | 55 | Wife | — | Illinois |
| 50 | Marvin Dymich | 17 | Son | — | Illinois |
| 51 | Merle Johnstone | 11 | Grand Son | — | Illinois |
| 52 | S. T. Hood | 49 | Head | Dentist | Wyoming |
| 53 | Barbara Hood | 39 | Wife | Dressmaker | Austria |
| 54 | Susana Graff | 69 | Mother in law | — | Austria |
| 55 | Jas F Smith | 51 | Head | Carpenter | Illinois |
| 56 | Estella D. Smith | 50 | Wife | — | Illinois |
| 57 | Shirley Smith | 16 | Daughter | — | Illinois |
| 58 | Carrie Kiehl | 82 | Aunt | — | Ohio |
| 59 | Walter Zahn | 36 | Head | Printer | Illinois |
| 60 | Helen Zahn | 35 | Wife | — | Illinois |
| 61 | Jack Zahn | 9 | Son | — | Illinois |
| 62 | Carrie Zahn | 67 | Mother | — | Germany |
| 63 | Raymond Lemieux | 38 | Head | Truck Driver | Illinois |
| 64 | Edna M Lemieux | 31 | Wife | — | New York |
| 65 | Raymond Jr. Lemieux | 6 | Son | — | Illinois |
| 66 | Ralph Gunderson | 40 | Head | Warehouse Manager | So. Dakota |
| 67 | May Gunderson | 35 | Wife | — | New York |
| 68 | Ralph Gunderson | 3 | Son | — | Illinois |
| 69 | Geo. Robbins | 38 | Head | Maintenance Man | Illinois |
| 70 | Florence Robbins | 36 | Wife | — | Scotland |
| 71 | Dolores Robbins | 11 | Daughter | — | Illinois |
| 72 | Norman Robbins | 6 | Son | — | Illinois |
| 73 | Carl J Senf | 44 | Head | Diamond Setter | Iowa |
| 74 | Edna O Senf | 45 | Wife | — | Illinois |
| 75 | Phyllis Senf | 14 | Daughter | — | Illinois |
| 76 | Barbara Gray | 60 | Head | — | Indiana |
| 77 | Gilbert Gray | 30 | Son | Draftsman | Illinois |
| 78 | Jno. D. Jones | 59 | Head | Maintenance Man | Wales |
| 79 | Margaret Jones THIS PERSON | 58 | Wife | — | Wales |
| 80 | John J. Jones | 28 | Son | Bookkeeper | 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)