MS
Mary Sweeney — 1940 US Census Record
Model Tree available1940 United States Federal Census · Will-County, Illinois
Our Model Tree links this Mary Sweeney across the 1920, 1930 and 1940 US Censuses in Will-County, Illinois (XGBoost, ~Confirmed), with identified parents Leo & Loretta — first a daughter (b.~1914), then head of a 5-person household.
Age 26
b. ~1914
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Will-County, Illinois |
| Surname | Sweeney |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Joliet City |
| 1935 Residence (County) | Will |
| Additional Details | |
| Occupation | Comptometer operator |
| Industry | public service |
| Class of Worker | PW |
| Income (1939) | 1200 |
| Highest Grade | H-4 |
| 1935 Residence | Same home |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Comptometer Operator |
| Township / Ward | Joliet City |
| Est. Birth Year | ~1914 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Sweeney | Daughter | — | 26 | ~1914 |
| Edward Sweeney | Head | — | 51 | ~1889 |
| John Webb | Other | — | 49 | ~1891 |
| George Sweeney | Son | — | 24 | ~1916 |
| Loretta Sweeney | Spouse | — | 52 | ~1888 |
Census Appearances
1920
Will, Illinois
Daughter, age 6
Will, Illinois · implied b. ~1914 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sweeney |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Will, Illinois
Daughter, age 16
Will, Illinois · implied b. ~1914 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sweeney |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Will-County, Illinois
Daughter, age 26
Will-County, Illinois · implied b. ~1914 — 5 household members
| Surname | Sweeney |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Joliet City |
| 1935 Residence (County) | Will |
| Occupation | Comptometer operator |
| Industry | public service |
| Class of Worker | PW |
| Income (1939) | 1200 |
| Highest Grade | H-4 |
| 1935 Residence | Same home |
| 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 Mary Sweeney across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Leo Angelos (~0.92 confidence) and mother Loretta Sweeney (~0.92 confidence) and father Edward Sweeney (~0.92 confidence) and mother Loretta Sweeney (~0.92 confidence) and mother Josephine Adelmann (~0.92 confidence) and father Edward Sweeney (~0.92 confidence) and mother Alice Estraille (~0.92 confidence). The pedigree spans 1 generation with 7 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Leo Angelos
b. ~1884
Source father
● Household
· direct · ~0.92
Mother
Loretta Sweeney
b. ~1888
Source mother
● Household
· direct · ~0.92
Father
Edward Sweeney
b. ~1889
Source father
● Household
· direct · ~0.92
Mother
Loretta Sweeney
b. ~1889
Source mother
● Household
· direct · ~0.92
Mother
Josephine Adelmann
b. ~1889
Source mother
● Household
· direct · ~0.92
Father
Edward Sweeney
b. ~1890
Source father
● Household
· direct · ~0.92
Mother
Alice Estraille
b. ~1897
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Sweeney
Daughter · 1940 · age 26 · b. ~1914 · Illinois
★ You are viewing this record
Sibling
George Sweeney
Sibling · 1940 · age 24
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 — Will-County, Illinois
Open full size
1940 US Federal Census — Will-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00907-00950)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Inez Collins | 58 | Lodger | Bookkeeper | Maine |
| 42 | George E. Kropper | 48 | Head | Contractor | Illinois |
| 43 | Inez Kropper | 46 | Wife | Waitress | Kentucky |
| 44 | James Kropper | 8 | Son | — | Illinois |
| 45 | Peggy Belle Wood | 34 | Sister | Night Manager | Kentucky |
| 46 | Andrew Virnis | 42 | Roomer | Proprietor | Greece |
| 47 | Francis Bachelhoffer | 40 | Head | Electrician | Illinois |
| 48 | Helen Bachelhoffer | 39 | Wife | — | Illinois |
| 49 | Francis Jr. Bachelhoffer | 18 | Son | Apprentice Electrical | Illinois |
| 50 | Helen Louise Bachelhoffer | 17 | Daughter | — | Illinois |
| 51 | Ronald Bachelhoffer | 11 | Son | — | Illinois |
| 52 | Joyce Bachelhoffer | 7 | Daughter | — | Illinois |
| 53 | Patrick Bachelhoffer | 5 | Son | — | Illinois |
| 54 | Patrick Egan | 62 | Roomer | Scenery | Illinois |
| 55 | Nora Malcolm | 60 | Head | — | Illinois |
| 56 | Mildred Malcolm | 31 | Daughter | Clerical | Illinois |
| 57 | Marjorie Malcolm | 21 | Daughter | Ironer | Illinois |
| 58 | Frederick Malcolm | 19 | Son | Semi-Skilled Labor | Illinois |
| 59 | Ethel Malcolm | 16 | Daughter | — | Illinois |
| 60 | Fred Christensen | 52 | Head | Night Man | Illinois |
| 61 | Clara Christensen | 52 | Wife | Seamstress | Illinois |
| 62 | Albert Axford | 59 | Head | Janitor | Illinois |
| 63 | Agnes Axford | 53 | Wife | — | Scotland |
| 64 | Nicholas Teder | 32 | Head | Truck Driver | Illinois |
| 65 | Helen Teder | 30 | Wife | — | Illinois |
| 66 | Rose Marie Teder | 9 | Daughter | — | Illinois |
| 67 | John Teder | 4 | Son | — | Illinois |
| 68 | Edward Sweeney | 51 | Head | Locomotive Engineer | Illinois |
| 69 | Loretta Sweeney | 52 | Wife | — | Illinois |
| 70 | Mary Sweeney THIS PERSON | 26 | Daughter | Comptometer Operator | Illinois |
| 71 | George Sweeney | 24 | Son | Laborer | Illinois |
| 72 | John Webb | 49 | Roomer | Switchman | Illinois |
| 73 | Earl E. Whiteman | 50 | Head | Salesman | Indiana |
| 74 | Mary M. Whiteman | 44 | Wife | — | Indiana |
| 75 | Mary Lois Whiteman | 21 | Daughter | Clerk | Wisconsin |
| 76 | Herbert Bendscheid | 31 | Head | Labor | Illinois |
| 77 | Michael Borst | 43 | Brother | Truck Driver | Illinois |
| 78 | Margaret Borst | 30 | Sister | — | Illinois |
| 79 | John Borst | 5 | Son | — | Illinois |
| 80 | Joseph Thacker | 24 | Brother in law | Interior Decorating | Illinois |
Pedigree Summary
Mary + 1 sibling
Gen 1 · 7 parents
~0.92
Max depth 4 (1900–1950 window)
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)