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John Mayer — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Fort-Bend-County, Texas
Our Model Tree links this John Mayer across the 1930 and 1940 US Censuses in Fort-Bend-County, Texas (XGBoost, ~Confirmed) — first a head (b.~1891), then head of a 8-person household.
Age 49
b. ~1891
Male
Head
Born: Czechoslovakia
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Fort-Bend-County, Texas |
| Surname | Mayer |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Czechoslovakia |
| 1935 Residence (City) | Justice Precinct 8 |
| 1935 Residence (County) | Fort Bend |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Farmer |
| Industry | On Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | H-1 |
| 1935 Residence | Same House |
| Birth Country | Czechoslovakia |
| Birthplace (normalized) | czechoslovakia |
| Occupation | Farmer |
| Township / Ward | Justice Precinct 8 |
| Est. Birth Year | ~1891 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Nattie Mayer | Daughter | — | 7 | ~1933 |
| Lydia Mayer | Daughter | — | 20 | ~1920 |
| Annie Mayer | Daughter | — | 18 | ~1922 |
| Alma Mayer | Daughter | — | 14 | ~1926 |
| John Mayer | Head | — | 49 | ~1891 |
| Walter Mayer | Son | — | 4 | ~1936 |
| Bennie Mayer | Son | — | 13 | ~1927 |
| Annie Mayer | Spouse | — | 48 | ~1892 |
Census Appearances
1930
Fort Bend, …
Head, age 38
Fort Bend, Texas · implied b. ~1892 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mayer |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Czechoslovakia |
| Naturalization Status | First papers filed |
| Year of Immigration | 1910 |
| Age at First Marriage | 20 |
| Father's Birthplace | Czechoslovakia |
| Mother's Birthplace | Czechoslovakia |
| Occupation | Farmer |
| Industry | General farm |
| Class of Worker | VVVV E |
| Can Read/Write | Yes |
| Mother Tongue | Bohemian |
| Home Owned/Rented | R |
| Radio Set | R |
| Veteran | No |
| Birth Country | Czechoslovakia |
| Birthplace (normalized) | czechoslovakia |
1940
Fort-Bend-County, Texas
Head, age 49
Fort-Bend-County, Texas · implied b. ~1891 — 8 household members
| Surname | Mayer |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Czechoslovakia |
| 1935 Residence (City) | Justice Precinct 8 |
| 1935 Residence (County) | Fort Bend |
| Naturalization Status | Naturalized |
| Occupation | Farmer |
| Industry | On Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | H-1 |
| 1935 Residence | Same House |
| Birth Country | Czechoslovakia |
| Birthplace (normalized) | czechoslovakia |
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 John Mayer across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Mayer
Head · 1940 · age 49 · b. ~1891 · Texas
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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 — Fort-Bend-County, Texas
Open full size
1940 US Federal Census — Fort-Bend-County, Texas
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04034-00854)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Frank Chalupa | 11 | Son | — | Texas |
| 2 | Anastazie Chalupa | 9 | Daughter | — | Texas |
| 3 | Edwin Chalupa | 7 | Son | — | Texas |
| 4 | Bessie Chalupa | 5 | Daughter | — | Texas |
| 5 | Robert Chalupa | 3 | Son | — | Texas |
| 6 | Alfonse Pesek | 32 | Head | Farmer | Texas |
| 7 | Annabella Pesek | 28 | Wife | — | Texas |
| 8 | Alton Pesek | 3 | Son | — | Texas |
| 9 | John Mayer THIS PERSON | 49 | Head | Farmer | Czechoslovakia |
| 10 | Annie Mayer | 48 | Wife | — | Texas |
| 11 | Lydia Mayer | 20 | Daughter | Helper On Farm | Texas |
| 12 | Annie Mayer | 18 | Daughter | Helper On Farm | Texas |
| 13 | Alma Mayer | 14 | Daughter | — | Texas |
| 14 | Bennie Mayer | 13 | Son | — | Texas |
| 15 | Nattie Mayer | 7 | Daughter | — | Texas |
| 16 | Walter Mayer | 4 | Son | — | Texas |
| 17 | Margaret Mayer | 25 | Head | Farmer | Texas |
| 18 | Alvin Mayer | 2 | Son | — | Texas |
| 19 | Frank Kozik | 39 | Head | Farmer | Texas |
| 20 | Sophie Kozik | 36 | Wife | — | Texas |
| 21 | Rosie Kozik | 14 | Daughter | — | Texas |
| 22 | Mary Kozik | 12 | Daughter | — | Texas |
| 23 | Julia Orsak | 28 | Head | — | Texas |
| 24 | George Orsak | 5 | Daughter | — | Texas |
| 25 | Elizabeth Orsak | 4 | Daughter | — | Texas |
| 26 | Rosie Kozik | 55 | Mother | — | Texas |
| 27 | Eddie Socha | 37 | Laborer | Laborer | Texas |
| 28 | John Martisak | 44 | Head | Farmer | Texas |
| 29 | Jonie Martisak | 34 | Wife | — | Texas |
| 30 | Lavine Martisak | 14 | Daughter | — | Texas |
| 31 | Gladys Martisak | 9 | Daughter | — | Texas |
| 32 | Theodore Macha | 31 | Head | Tractor Driver | Texas |
| 33 | Annie Macha | 28 | Wife | — | Texas |
| 34 | George Macha | 4 | Daughter | — | Texas |
| 35 | Annie Macha | 2 | Daughter | — | Texas |
| 36 | Frances Macha | 0 | Daughter | 0 | Texas |
| 37 | John Macha | 32 | Head | Farmer | Texas |
| 38 | Carrie Macha | 28 | Wife | — | Texas |
| 39 | Victor Macha | 9 | Son | — | Texas |
| 40 | Richard Petrach | 43 | Head | Farmer | Texas |
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)