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Mary Hoover — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Mclean-County, Illinois
Our Model Tree links this Mary Hoover across the 1930 and 1940 US Censuses in Mclean-County, Illinois (XGBoost, ~Confirmed) — first a daughter (b.~1922), then head of a 7-person household.
Age 18
b. ~1922
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Mclean-County, Illinois |
| Surname | Hoover |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Downs Village |
| 1935 Residence (County) | McLean |
| Additional Details | |
| Occupation | beauty operator |
| Industry | beauty parlor |
| Class of Worker | PW |
| Hours Worked | 24 |
| Income (1939) | 700 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Beauty Operator |
| Township / Ward | Downs Village |
| Est. Birth Year | ~1922 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Ralph Hoover | Son | — | 23 | ~1917 |
| Mary Hoover | Daughter | — | 18 | ~1922 |
| Fern Hoover | Daughter | — | 21 | ~1919 |
| George Hoover | Son | — | 12 | ~1928 |
| Nellie Hoover | Head | — | 50 | ~1890 |
| Richard Hoover | Son | — | 7 | ~1933 |
| Beulah Hoover | Daughter | — | 16 | ~1924 |
Census Appearances
1930
Mclean, Illinois
Daughter, age 7
Mclean, Illinois · implied b. ~1923 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hoover |
| Given Name | Martha |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Mclean-County, Illinois
Daughter, age 18
Mclean-County, Illinois · implied b. ~1922 — 7 household members
| Surname | Hoover |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Downs Village |
| 1935 Residence (County) | McLean |
| Occupation | beauty operator |
| Industry | beauty parlor |
| Class of Worker | PW |
| Hours Worked | 24 |
| Income (1939) | 700 |
| Highest Grade | H 4 |
| 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 Mary Hoover across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Hoover
Daughter · 1940 · age 18 · b. ~1922 · Illinois
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Sibling
Beulah Hoover
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Hoover
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ralph Hoover
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Hoover
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Fern Hoover
Sibling · 1940 · age 21
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 — Mclean-County, Illinois
Open full size
1940 US Federal Census — Mclean-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00842-00248)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | James Boudreau | None | — | — | Illinois |
| 2 | Nettie Michel | 62 | Head | — | Illinois |
| 3 | Ruth Michel | 39 | Daughter | — | Illinois |
| 4 | Howard Michel | 24 | Son | Laborer | Illinois |
| 5 | Bernice Michel | 24 | Daughter | Saleslady | Illinois |
| 6 | Margaret Mckay | 4 | Granddaughter | — | Illinois |
| 7 | Thony B. Brown | 71 | Head | — | Illinois |
| 8 | Christina Brown | 68 | Wife | — | Illinois |
| 9 | Iris Brown | 41 | Daughter | School Teacher | Illinois |
| 10 | Nellie F. Hoover | 50 | Head | Saleslady | Illinois |
| 11 | Ralph Hoover | 23 | Son | Collector | Illinois |
| 12 | Fern Hoover | 21 | Daughter | Office Girl | Illinois |
| 13 | Mary Hoover THIS PERSON | 18 | Daughter | Beauty Operator | Illinois |
| 14 | Beulah Hoover | 16 | Daughter | — | Colorado |
| 15 | George Hoover | 12 | Son | — | Illinois |
| 16 | Richard Hoover | 7 | Son | — | Illinois |
| 17 | Russell Heaver | 40 | Head | Carpenter | Illinois |
| 18 | Grace Heaver | 41 | Wife | — | Illinois |
| 19 | Darnell Heaver | 10 | Son | — | Illinois |
| 20 | Homer Grandy | 28 | Lodger | School Teacher | Illinois |
| 21 | Georgina Smith | 23 | Lodger | School Teacher | Illinois |
| 22 | Hildy Long | 54 | Head | Laborer | Illinois |
| 23 | Hazel Long | 43 | Wife | — | Illinois |
| 24 | Barbara Long | 5 | Daughter | — | Illinois |
| 25 | Abbot Dawns | 66 | Lodger | — | Illinois |
| 26 | Dennis O. Davis | 54 | Head | Painter | Illinois |
| 27 | Bernie R. Davis | 57 | Wife | — | New York |
| 28 | Henry F. Shringley | 69 | Head | Farmer | Ohio |
| 29 | Lillian M. Shringley | 61 | Wife | — | Illinois |
| 30 | Eugene F. Lipps | 51 | Head | Carpenter | Illinois |
| 31 | Eva A. Lipps | 46 | Wife | — | Kentucky |
| 32 | Earl Lipps | 20 | Son | Press Operator | Illinois |
| 33 | Gladys Lipps | 18 | Daughter | Typist | Illinois |
| 34 | Lyle Maxwell | 23 | Lodger | School Teacher | Illinois |
| 35 | Harriet Cardwell | 75 | Lodger | — | Illinois |
| 36 | Alba T. Black | 50 | Head | Farmer | Indiana |
| 37 | Lola A. Black | 50 | Wife | — | Illinois |
| 38 | Robert T. Black | 17 | Son | Laborer | Illinois |
| 39 | Genevieve L. Black | 19 | Daughter | — | Illinois |
| 40 | Thomas W. Modderno | 58 | Head | Drainage Contractor | Virginia |
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)