MD
Mary Donahue — 1940 US Census Record
Model Tree available1940 United States Federal Census · Will-County, Illinois
Our Model Tree links this Mary Donahue across the 1920, 1930 and 1940 US Censuses in Will-County, Illinois (XGBoost, ~Confirmed), with identified parents John & John — first a daughter (b.~1905), then head of a 6-person household.
Age 35
b. ~1905
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Will-County, Illinois |
| Surname | Donahue |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Joliet City |
| 1935 Residence (County) | Will |
| Additional Details | |
| Occupation | Teacher |
| Industry | Public School |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1412 |
| Highest Grade | C 4 |
| 1935 Residence | Same house |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Teacher |
| Township / Ward | Joliet City |
| Est. Birth Year | ~1905 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Donahue | Daughter | — | 35 | ~1905 |
| Angela Donahue | Daughter | — | 26 | ~1914 |
| Elizabeth Donahue | Daughter | — | 30 | ~1910 |
| Helen Donahue | Daughter | — | 29 | ~1911 |
| John Donahue | Head | — | 63 | ~1877 |
| Anne Donahue | Spouse | — | 60 | ~1880 |
Census Appearances
1920
Will, Illinois
Daughter, age 17
Will, Illinois · implied b. ~1903 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Donahue |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Will, Illinois
Daughter, age 25
Will, Illinois · implied b. ~1905 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Donahue |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Teacher |
| Industry | Public School |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Will-County, Illinois
Daughter, age 35
Will-County, Illinois · implied b. ~1905 — 6 household members
| Surname | Donahue |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Joliet City |
| 1935 Residence (County) | Will |
| Occupation | Teacher |
| Industry | Public School |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1412 |
| Highest Grade | C 4 |
| 1935 Residence | Same house |
| 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 Donahue across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Donahue (~0.92 confidence) and father John Donahue (~0.92 confidence) and mother Annie Donahue (~0.92 confidence) and mother Anna Donahue (~0.92 confidence) and father John Donahue (~0.92 confidence) and mother Anne Donahue (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Donahue
b. ~1870
Source father
● Household
· direct · ~0.92
Father
John Donahue
b. ~1870
Source father
● Household
· direct · ~0.92
Mother
Annie Donahue
b. ~1871
Source mother
● Household
· direct · ~0.92
Mother
Anna Donahue
b. ~1874
Source mother
● Household
· direct · ~0.92
Father
John Donahue
b. ~1877
Source father
● Household
· direct · ~0.92
Mother
Anne Donahue
b. ~1880
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Donahue
Daughter · 1940 · age 35 · b. ~1905 · Illinois
★ You are viewing this record
Sibling
Elizabeth Donahue
Sibling · 1940 · age 30
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Donahue
Sibling · 1940 · age 29
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Angela Donahue
Sibling · 1940 · age 26
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-t0627-00907-00907)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Janice Rumple | 19 | Daughter | Factory Worker | Illinois |
| 42 | Annemarie Rumple | 12 | Daughter | — | Illinois |
| 43 | James Rumple | 9 | Son | — | Illinois |
| 44 | Robert Rumple | 2 | Son | — | Illinois |
| 45 | William Haddleman | 36 | Head | Clerk | Illinois |
| 46 | Josephine Haddleman | 32 | Wife | Housewife | Illinois |
| 47 | Otto Koenig | 57 | Head | Carpenter | Illinois |
| 48 | Minnie Koenig | 51 | Wife | Carpenter | Illinois |
| 49 | Eugene Koenig | 27 | Son | Carpenter | Illinois |
| 50 | Muriel Koenig | 25 | Daughter | Carpenter | Illinois |
| 51 | Howard Munson | 37 | Head | Superintendent | Illinois |
| 52 | Edna Munson | 36 | Wife | — | Illinois |
| 53 | William Munson | 2 | Son | — | Illinois |
| 54 | Marylyn Munson | 5 | Daughter | — | Illinois |
| 55 | John Donahue | 63 | Head | R. T. Foreman | Illinois |
| 56 | Anne Donahue | 60 | Wife | — | Illinois |
| 57 | Mary Donahue THIS PERSON | 35 | Daughter | Teacher | Illinois |
| 58 | Elizabeth Donahue | 30 | Daughter | Teacher | Illinois |
| 59 | Helen Donahue | 29 | Daughter | Sub. Teacher | Illinois |
| 60 | Angela Donahue | 26 | Daughter | Teacher | Illinois |
| 61 | Helen Gorman | 75 | Head | — | Illinois |
| 62 | Maude Beaver | 65 | Head | Income From Securities | Vermont |
| 63 | Jenna Dubien | 44 | Head | Labeler | Illinois |
| 64 | Berniece Dubien | 26 | Daughter | — | Illinois |
| 65 | Earl Parker | 51 | Head | Clerk | Illinois |
| 66 | Anice Parker | 53 | Wife | — | Illinois |
| 67 | H. K. Bosworth | 59 | Brother-in-law | — | Illinois |
| 68 | John Himes | 61 | Head | Stillman | Ohio |
| 69 | Jessie Himes | 60 | Wife | — | Iowa |
| 70 | William Himes | 84 | Father-in-law | Fire Furnace | Pennsylvania |
| 71 | Walter Smith | 45 | Head | Car Inspector | Illinois |
| 72 | Alberta Smith | 39 | Wife | — | Illinois |
| 73 | Jeanetta Smith | 14 | Daughter | — | Illinois |
| 74 | Joseph Sobinsky | 47 | Head | Salesman | Illinois |
| 75 | Helen Sobinsky | 44 | Wife | Cashier | Illinois |
| 76 | Hugh Goddin | 72 | Head | Masseuse | Virginia |
| 77 | Clara Goddin | 58 | Wife | Nurse | Arkansas |
| 78 | Elmer Goddin | 46 | Son | — | Illinois |
| 79 | Mary Crosson | 77 | Head | — | Canada |
| 80 | Vibelius Mabel | 52 | Daughter | Clerk | Illinois |
Pedigree Summary
Mary + 3 siblings
Gen 1 · 6 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)