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Mary Mckee — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Marion-County, Illinois
Our Model Tree links this Mary Mckee across the 1930 and 1940 US Censuses in Marion-County, Illinois (XGBoost, ~Confirmed) — first a daughter (b.~1919), then head of a 5-person household.
Age 21
b. ~1919
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Marion-County, Illinois |
| Surname | McKee |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Centralia City |
| 1935 Residence (County) | Marion |
| Additional Details | |
| Occupation | Operator |
| Industry | Telephone |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 400 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Operator |
| Township / Ward | Centralia City |
| Est. Birth Year | ~1919 |
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 |
|---|---|---|---|---|
| Alice Webster | Other | — | 75 | ~1865 |
| Joan Mckee | Daughter | — | 19 | ~1921 |
| Mary Mckee | Daughter | — | 21 | ~1919 |
| Carrie Mckee | Head | — | 47 | ~1893 |
| Don Mckee | Son | — | 13 | ~1927 |
Census Appearances
1930
Marion, Illinois
Daughter, age 11
Marion, Illinois · implied b. ~1919 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mc Kee |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| 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
Marion-County, Illinois
Daughter, age 21
Marion-County, Illinois · implied b. ~1919 — 5 household members
| Surname | McKee |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Centralia City |
| 1935 Residence (County) | Marion |
| Occupation | Operator |
| Industry | Telephone |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 400 |
| 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 Mckee across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Mckee
Daughter · 1940 · age 21 · b. ~1919 · Illinois
★ You are viewing this record
Sibling
Joan Mckee
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Don Mckee
Sibling · 1940 · age 13
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 — Marion-County, Illinois
Open full size
1940 US Federal Census — Marion-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00852-00431)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Clifton Crumm | 49 | Head | Locomotive Engineer | Iowa |
| 42 | Juanita Crumm | 42 | Wife | — | Iowa |
| 43 | Jimmy Crumm | 5 | Son | — | Illinois |
| 44 | Lyle Spear | 18 | Son | Truck Driver | South Dakota |
| 45 | Orin Greelman | 44 | Head | Locomotive Fireman | Indiana |
| 46 | Janie Greelman | 32 | Wife | — | Missouri |
| 47 | Frank Bogan | 57 | Head | Inspector | Illinois |
| 48 | Maude Bogan | 59 | Wife | — | Wyoming |
| 49 | Edwin O'Bryan | 21 | Lodger | Presser | Illinois |
| 50 | Dan Fletcher | 40 | Lodger | Driller | Wyoming |
| 51 | Dorothy Fletcher | 35 | Lodger | — | Wyoming |
| 52 | Frank Martini | 51 | Head | Carpenter | Oklahoma |
| 53 | Bessie Martini | 39 | Wife | — | Texas |
| 54 | Nellie Bogan | 29 | Head | Manager | Illinois |
| 55 | Edna Bogan | 22 | Wife | — | Illinois |
| 56 | James Bogan | 3 | Son | — | Illinois |
| 57 | Sandra Ann Bogan | 2 | Daughter | — | Illinois |
| 58 | Harold Furnish | 24 | Head | Assistant Manager | Missouri |
| 59 | Robbie Furnish | 22 | Wife | — | Missouri |
| 60 | Vernon Zimmermann | 26 | Head | Boy Scout Ex. | Wisconsin |
| 61 | Ruth Zimmermann | 24 | Wife | — | Wisconsin |
| 62 | John Ferguson | 48 | Head | Maintenance Man | Kentucky |
| 63 | Mabel Ferguson | 49 | Wife | — | Kentucky |
| 64 | Jack Ferguson | 13 | Son | — | Illinois |
| 65 | Norma Ferguson | 13 | Daughter | — | Illinois |
| 66 | Carrie Mckee | 47 | Head | Music Teacher | Illinois |
| 67 | Mary Mckee THIS PERSON | 21 | Daughter | Operator | Illinois |
| 68 | Joan Mckee | 19 | Daughter | Bookkeeper | Illinois |
| 69 | Don Mckee | 13 | Son | — | Illinois |
| 70 | Alice Webster | 75 | Mother | — | Illinois |
| 71 | Robert Sheard | 27 | Head | Truck Driver | Texas |
| 72 | Lois Sheard | 25 | Wife | — | Texas |
| 73 | Margaret Sheard | 3 | Daughter | — | Texas |
| 74 | Grace Webster | 53 | Head | — | Illinois |
| 75 | L. D. Hawkins | 42 | Lodger | Salesman | Indiana |
| 76 | Mary K. Hawkins | 38 | Lodger | — | Indiana |
| 77 | Mary Katherine Hawkins | 14 | Lodger | — | Indiana |
| 78 | John H. Edmonston | 41 | Head | Machinist | Illinois |
| 79 | Eva Edmonston | 35 | Wife | — | Illinois |
| 80 | Lucille Edmonston | 16 | Daughter | — | 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)