GM
George Mayer — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this George Mayer across the 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1900), then head of a 10-person household.
Age 40
b. ~1900
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Mayer |
| Given Name | George |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Chauffeur Trucker |
| Industry | PW |
| Class of Worker | 2028 |
| Hours Worked | 52 |
| Highest Grade | S 5 |
| 1935 Residence | Same house |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Chauffeur Trucker |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1900 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to George | Age | Birth yr |
|---|---|---|---|---|
| Richard Mayer | Son | — | 4 | ~1936 |
| Margaret Ferguson | Other | — | 57 | ~1883 |
| Helen Mayer | Daughter | — | 13 | ~1927 |
| Alice Mayer | Daughter | — | 14 | ~1926 |
| Joan Mayer | Daughter | — | 5 | ~1935 |
| Alice Mayer | Spouse | — | 33 | ~1907 |
| Dorothy Mayer | Daughter | — | 9 | ~1931 |
| George Mayer | Son | — | 12 | ~1928 |
| James Mayer | Son | — | 6 | ~1934 |
| George Mayer | Head | — | 40 | ~1900 |
Census Appearances
1930
Cook, Illinois
Other, age 29
Cook, Illinois · implied b. ~1901 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Meyer |
| Given Name | George |
| Relationship to Head | Boarder |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Germany |
| Mother's Birthplace | Illinois |
| Occupation | Chauffeur |
| Industry | Moving Co |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Head, age 40
Cook-County, Illinois · implied b. ~1900 — 10 household members
| Surname | Mayer |
| Given Name | George |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Occupation | Chauffeur Trucker |
| Industry | PW |
| Class of Worker | 2028 |
| Hours Worked | 52 |
| Highest Grade | S 5 |
| 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 George Mayer across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
George Mayer
Head · 1940 · age 40 · b. ~1900 · 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
38 people indexed on this census page (nara:1940:m-t0627-00947-00916)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Louis J. Meers | 44 | Head | Policeman | Illinois |
| 42 | Bernice Meers | 30 | Wife | — | Illinois |
| 43 | La Verne Meers | 12 | Daughter | — | Illinois |
| 44 | George Mayer THIS PERSON | 40 | Head | Chauffeur Trucker | Illinois |
| 45 | Alice Mayer | 33 | Wife | — | Wisconsin |
| 46 | Alice Mayer | 14 | Daughter | — | Illinois |
| 47 | Helen Mayer | 13 | Daughter | — | Illinois |
| 48 | George Mayer | 12 | Son | — | Illinois |
| 49 | Dorothy Mayer | 9 | Daughter | — | Illinois |
| 50 | James Mayer | 6 | Son | — | Illinois |
| 51 | Joan Mayer | 5 | Daughter | — | Illinois |
| 52 | Richard Mayer | 4 | Son | — | Illinois |
| 53 | Margaret Ferguson | 57 | Mother-in-law | — | Illinois |
| 54 | William Ostrowski | 56 | Head | Laborer | Lithuania |
| 55 | Martha Ostrowski | 52 | Wife | — | Lithuania |
| 56 | Joseph Ostrowski | 20 | Son | — | Illinois |
| 57 | William Keenan | 30 | Head | Policeman | Illinois |
| 58 | Kathleen Keenan | 27 | Wife | — | Illinois |
| 59 | Mary Margaret Keenan | 8 | Daughter | — | Illinois |
| 60 | William Keenan | 6 | Son | — | Illinois |
| 61 | Sue Ann Keenan | 1 | Daughter | — | Illinois |
| 62 | Paul Nill | 43 | Head | Salesman | Illinois |
| 63 | Helen Nill | 32 | Wife | — | Illinois |
| 64 | Patricia Nill | 11 | Daughter | — | Illinois |
| 65 | Elliott Nill | 2 | Son | — | Illinois |
| 66 | Walter Roessler | 28 | Head | Welder | Illinois |
| 67 | Lillian Roessler | 26 | Wife | — | Illinois |
| 68 | Ronald Roessler | 1 | Son | — | Illinois |
| 69 | Alma Casping | 74 | Head | — | Sweden |
| 70 | Erik Hard | 46 | Son-in-law | Motorman | Illinois |
| 71 | Frances Hard | 41 | Daughter | Office Clerk | Illinois |
| 72 | Maurice Hard | 43 | Son | Painter | Illinois |
| 73 | Florence Hard | 41 | Daughter | Comptometer Operator | Illinois |
| 74 | Stanley Balta | 46 | Head | Janitor | Lithuania |
| 75 | Apolonia Balta | 48 | Wife | — | Lithuania |
| 76 | Peter Balta | 18 | Son | — | Illinois |
| 77 | Michael Pocius | 42 | Lodger | — | Lithuania |
| 78 | Thomas P. Nolan | 41 | Head | Chief Clerk | 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)