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Mary Bailey — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Stephenson-County, Illinois
Our Model Tree links this Mary Bailey across the 1920, 1930 and 1940 US Censuses in Stephenson-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1881), then head of a 3-person household.
Age 59
b. ~1881
Female
Head
Born: Illinois
Divorced
1940 Census Record Details
| Census Year | 1940 |
| Location | Stephenson-County, Illinois |
| Surname | Bailey |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 59 |
| Marital Status | Divorced |
| Birthplace | Illinois |
| 1935 Residence (City) | Freeport City |
| 1935 Residence (County) | Stephenson |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Freeport City |
| Est. Birth Year | ~1881 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Bailey | Head | — | 59 | ~1881 |
| George Weidel | Son | — | 40 | ~1900 |
| Frank Bailey | Son | — | 32 | ~1908 |
Census Appearances
1920
Stephenson, Illinois
Head, age 39
Stephenson, Illinois · implied b. ~1881 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Bailey |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 39 |
| Marital Status | Widowed |
| Birthplace | Illinois |
| Father's Birthplace | Germany |
| Mother's Birthplace | New York |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Stephenson, Illinois
Head, age 49
Stephenson, Illinois · implied b. ~1881 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Bailey |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 49 |
| Marital Status | Widowed |
| Birthplace | Illinois |
| Age at First Marriage | 18 |
| Father's Birthplace | Germany |
| Mother's Birthplace | New York |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 3500 |
| Radio Set | R |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Stephenson-County, Illinois
Head, age 59
Stephenson-County, Illinois · implied b. ~1881 — 3 household members
| Surname | Bailey |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 59 |
| Marital Status | Divorced |
| Birthplace | Illinois |
| 1935 Residence (City) | Freeport City |
| 1935 Residence (County) | Stephenson |
| Class of Worker | 0 |
| Highest Grade | No 5 |
| 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 Bailey 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 Bailey
Head · 1940 · age 59 · b. ~1881 · 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 — Stephenson-County, Illinois
Open full size
1940 US Federal Census — Stephenson-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00892-00518)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Nathan Bast | 19 | Son | Radio Service Man | Illinois |
| 2 | Virginia Bast | 14 | Daughter | Typist | Illinois |
| 3 | Mary Ellen Bast | 10 | Daughter | — | Illinois |
| 4 | Antone Kinderman | 84 | Head | — | Germany |
| 5 | George Kinderman | 45 | Son | Laborer | Germany |
| 6 | Edward Kinderman | 37 | Son | Laborer | Illinois |
| 7 | Margaret Kinderman | 34 | Daughter | Clerk | Illinois |
| 8 | Thomas Deal | 50 | Head | Laborer | Illinois |
| 9 | Marie Deal | 41 | Wife | — | Illinois |
| 10 | Mary Bailey THIS PERSON | 59 | Head | — | Illinois |
| 11 | Frank Bailey | 32 | Son | Laborer | Illinois |
| 12 | George Weidel | 40 | Son | Laborer | Illinois |
| 13 | William Leiser | 40 | Head | Machine Opr. | Minnesota |
| 14 | Cecelia Leiser | 35 | Wife | — | Illinois |
| 15 | Mary Ellen Leiser | 2 | Daughter | — | Illinois |
| 16 | Henrietta Wahler | 58 | Head | Maid | Illinois |
| 17 | Alfred Ferguson | 39 | Head | Fireman | Illinois |
| 18 | Anna Ferguson | 40 | Wife | — | Illinois |
| 19 | Eloise Ferguson | 15 | Daughter | — | Illinois |
| 20 | Robert Ferguson | 9 | Son | — | Illinois |
| 21 | Shirley Ann Ferguson | 4 | Daughter | — | Illinois |
| 22 | Carl Mulligan | 48 | Head | Fireman | Ohio |
| 23 | Edith Mulligan | 40 | Wife | — | Illinois |
| 24 | Carl Jr. Mulligan | 21 | Son | — | Illinois |
| 25 | Mary Mulligan | 17 | Daughter | — | Illinois |
| 26 | Anthony Weaver | 35 | Head | Plumbing | Wisconsin |
| 27 | Irene Weaver | 36 | Wife | Furrier | Wisconsin |
| 28 | Rodney Weaver | 3 | Son | — | Illinois |
| 29 | Ray Stauffacher | 26 | Head | Clerk | Wisconsin |
| 30 | Nora Stauffacher | 20 | Wife | — | Wisconsin |
| 31 | Gloria Jean Stauffacher | 5 | Daughter | — | Illinois |
| 32 | Ray Stauffacher | 26 | Brother | — | Wisconsin |
| 33 | Ada Wagner | 50 | Head | Waitress | Illinois |
| 34 | Darlene Wagner | 10 | Daughter | — | Illinois |
| 35 | Reka F. Kriens | 61 | Head | Maid | Germany |
| 36 | Henry Kriens | 32 | Son | Laborer | Illinois |
| 37 | Harold Wright | 44 | Head | Meter Tester | Wisconsin |
| 38 | Esther Wright | 37 | Wife | — | Norway |
| 39 | Irene Wright | 13 | Daughter | — | Illinois |
| 40 | Robert Wright | 10 | Son | — | Illinois |
Related Census Records
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)