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Joseph Mayer — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Joseph Mayer across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1887), then head of a 3-person household.
Age 53
b. ~1887
Male
Head
Born: Hungary
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Mayer |
| Given Name | Joseph B. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Hungary |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Technician |
| Industry | Piano Store |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 172 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth Country | Hungary |
| Birthplace (normalized) | hungary |
| Occupation | Technician |
| Township / Ward | Chicago |
| Est. Birth Year | ~1887 |
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 Joseph | Age | Birth yr |
|---|---|---|---|---|
| Joseph Mayer | Head | — | 53 | ~1887 |
| Irene Mayer | Daughter | — | 23 | ~1917 |
| Mary Mayer | Spouse | — | 45 | ~1895 |
Census Appearances
1920
Cook, Illinois
Head, age 33
Cook, Illinois · implied b. ~1887 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mayer |
| Given Name | Joseph |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Hungary |
| Year of Immigration | 1911 |
| Naturalization Status | Alien |
| Father's Birthplace | Hungary |
| Mother's Birthplace | Hungary |
| Occupation | Carpenter |
| Industry | Building |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | German |
| Home Owned/Rented | R |
| Birth Country | Hungary |
| Birthplace (normalized) | hungary |
1930
Cook, Illinois
Head, age 43
Cook, Illinois · implied b. ~1887 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mayer |
| Given Name | Joseph B |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Hungary |
| Naturalization Status | First papers filed |
| Year of Immigration | 1900 |
| Age at First Marriage | 29 |
| Father's Birthplace | Hungary |
| Mother's Birthplace | Hungary |
| Occupation | pharmacist |
| Industry | Drug |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Hungarian |
| Home Owned/Rented | R |
| Home Value / Rent | 40.00 |
| Radio Set | R |
| Veteran | No |
| Birth Country | Hungary |
| Birthplace (normalized) | hungary |
1940
Cook-County, Illinois
Head, age 53
Cook-County, Illinois · implied b. ~1887 — 3 household members
| Surname | Mayer |
| Given Name | Joseph B. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Hungary |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Occupation | Technician |
| Industry | Piano Store |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 172 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth Country | Hungary |
| Birthplace (normalized) | hungary |
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 Joseph Mayer across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Joseph Mayer
Head · 1940 · age 53 · b. ~1887 · Illinois
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Cook-County, Illinois
Open full size
1940 US Federal Census — Cook-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01011-00028)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Joe Curtis Allen | 25 | Head | Radio Announcer | Texas |
| 42 | Jean Allen | 20 | Wife | Sandman | Illinois |
| 43 | Carl Reymann | 41 | Head | Pastry Man | Germany |
| 44 | Anna Reymann | 44 | Wife | — | Germany |
| 45 | Henry Reymann | 20 | Son | Pastry Man | Germany |
| 46 | Rudolph Reymann | 8 | Son | — | Illinois |
| 47 | Frederick Damm | 62 | Head | Janitor | Germany |
| 48 | Barbara Damm | 53 | Wife | Maid | Germany |
| 49 | Joseph B. Mayer THIS PERSON | 53 | Head | Technician | Hungary |
| 50 | Mary Mayer | 45 | Wife | — | Hungary |
| 51 | Irene Mayer | 23 | Daughter | Record Office Work | Illinois |
| 52 | John Vogt | 65 | Head | Pile Driver | Germany |
| 53 | Elizabeth Vogt | 63 | Wife | — | Germany |
| 54 | Elsie Vogt | 29 | Daughter | Bookkeeper | Germany |
| 55 | George Vogt | 24 | Son | Advertising | Illinois |
| 56 | Frank Vogt | 22 | Son | Salesman | Illinois |
| 57 | Fred Borchers | 43 | Head | Draftsman | Germany |
| 58 | Rose Borchers | 40 | Wife | — | Germany |
| 59 | Marga Borchers | 12 | Daughter | — | Illinois |
| 60 | Theodore Vogt | 36 | Head | Baker | Germany |
| 61 | Agnes Vogt | 34 | Wife | — | Illinois |
| 62 | Marilyn Vogt | 5 | Daughter | — | Illinois |
| 63 | Thomas Vogt | 4 | Son | — | Illinois |
| 64 | Beatrice Vogt | 0 | Infant | — | Illinois |
| 65 | Edward Morrison | 50 | Head | Switchman | Texas |
| 66 | Margaret Morrison | 73 | Wife | — | Iowa |
| 67 | Frank Fiegel | 58 | Head | Watchman | Illinois |
| 68 | Rosalia Fiegel | 57 | Wife | — | Ohio |
| 69 | Frank Gilbertie | 38 | Head | Salesman | Massachusetts |
| 70 | Isabel Gilbertie | 29 | Wife | — | Ohio |
| 71 | Maud Dayton | 53 | Mother-in-law | — | Pennsylvania |
| 72 | Herman Heerani | 78 | Head | Cabinet Maker | Germany |
| 73 | Augusta Heerani | 75 | Wife | — | Germany |
| 74 | Walter Heerani | 50 | Son | — | Illinois |
| 75 | Arthur Brock | 38 | Head | Proprietor | Arkansas |
| 76 | Gertrude Brock | 32 | Wife | — | Illinois |
| 77 | Irene Brock | 5 | Daughter | — | Illinois |
| 78 | William Strehein | 65 | Head | Clerk | Illinois |
| 79 | Anna K. Strehein | 52 | Wife | — | Germany |
| 80 | George Mcthee | 32 | Head | Carpenter Maintenance | Tennessee |
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)