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Mary Maloney — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Mary Maloney across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1874), then head of a 4-person household.
Age 66
b. ~1874
Female
Head
Born: Ireland
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Maloney |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 66 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Additional Details | |
| Industry | 0 |
| Class of Worker | 0 |
| Highest Grade | 4 |
| 1935 Residence | Same place |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Township / Ward | Chicago |
| Est. Birth Year | ~1874 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Maloney | Head | — | 66 | ~1874 |
| Thomas Maloney | Son | — | 32 | ~1908 |
| Joseph Maloney | Son | — | 28 | ~1912 |
| James Maloney | Son | — | 37 | ~1903 |
Census Appearances
1920
Cook, Illinois
Spouse, age 46
Cook, Illinois · implied b. ~1874 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Moloney |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Ireland |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Irish |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1930
Cook, Illinois
Spouse, age 56
Cook, Illinois · implied b. ~1874 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Maloney |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1883 |
| Age at First Marriage | 25 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | none |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1940
Cook-County, Illinois
Head, age 66
Cook-County, Illinois · implied b. ~1874 — 4 household members
| Surname | Maloney |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 66 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Industry | 0 |
| Class of Worker | 0 |
| Highest Grade | 4 |
| 1935 Residence | Same place |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
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 Mary Maloney across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Maloney
Head · 1940 · age 66 · b. ~1874 · Illinois
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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 — Cook-County, Illinois
Open full size
1940 US Federal Census — Cook-County, Illinois
Page Contents
37 people indexed on this census page (nara:1940:m-t0627-00950-00723)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Harold Anderson | 16 | Son | — | Illinois |
| 42 | Violet Anderson | 14 | Daughter | — | Illinois |
| 43 | Delores Anderson | 11 | Daughter | — | Illinois |
| 44 | Theodore Rake | 66 | Head | Blacksmith | New Jersey |
| 45 | Bridget Rake | 64 | Wife | — | Ireland |
| 46 | Amy Rake | 26 | Daughter | Stenographer | Illinois |
| 47 | William Rake | 23 | Son | Clerk | Illinois |
| 48 | Thomas Mcdonough | 57 | Head | — | Illinois |
| 49 | Lena L. Mcdonough | 58 | Wife | Seamstress | Ohio |
| 50 | Grace Reynolds | 21 | Boarder | Maid | England |
| 51 | Darlene Ranco | 5 | Daughter | — | Illinois |
| 52 | Robert Roth | 29 | Head | Iron Work | Illinois |
| 53 | Josephine Roth | 24 | Wife | — | Illinois |
| 54 | Mary Jo Roth | 2 | Daughter | — | Illinois |
| 55 | Joan Roth | 0 | Daughter | — | Illinois |
| 56 | Rose Stump | 76 | Aunt | — | Canada |
| 57 | John Kennedy | 45 | Head | Grocery Man | Ireland |
| 58 | Agnes Kennedy | 46 | Wife | — | Scotland |
| 59 | Margaret Kennedy | 17 | Daughter | — | Ireland |
| 60 | Noel Roeschke | 50 | Head | Carpenter | Iowa |
| 61 | Mabel Roeschke | 46 | Wife | — | Iowa |
| 62 | Conard Roeschke | 25 | Son | Radio Man | Illinois |
| 63 | Edward Feeley | 58 | Head | Handyman | Illinois |
| 64 | Lillian Feeley | 49 | Wife | — | Illinois |
| 65 | Lillian B. Feeley | 25 | Daughter | Packer | Illinois |
| 66 | William Feeley | 23 | Son | Order Filling | Illinois |
| 67 | Francis Feeley | 17 | Daughter | — | Illinois |
| 68 | Edwina Feeley | 14 | Daughter | — | Illinois |
| 69 | Edmund Feeley | 12 | Son | — | Illinois |
| 70 | David Feeley | 9 | Son | — | Illinois |
| 71 | Shirley Feeley | 6 | Daughter | — | Illinois |
| 72 | Tillie Keisler | 63 | Head | — | Wisconsin |
| 76 | Mary Maloney THIS PERSON | 66 | Head | — | Ireland |
| 77 | James Maloney | 37 | Son | — | Illinois |
| 78 | Thomas Maloney | 32 | Son | — | Illinois |
| 79 | Joseph Maloney | 28 | Son | — | Illinois |
| 80 | William Healy | 23 | Head | Hog Driver | 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)