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John Mayer — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Nelson-County, Kentucky
Our Model Tree links this John Mayer across the 1920, 1930 and 1940 US Censuses in Nelson-County, Kentucky (XGBoost, ~Confirmed) — first a head (b.~1873), then head of a 3-person household.
Age 67
b. ~1873
Male
Head
Born: Austria
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Nelson-County, Kentucky |
| Surname | Mayer |
| Given Name | John R |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 67 |
| Marital Status | Married |
| Birthplace | Austria |
| 1935 Residence (City) | Mag. Dist #4 |
| 1935 Residence (County) | Nelson |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth Country | Austria |
| Birthplace (normalized) | austria |
| Occupation | Farmer |
| Township / Ward | Mag Dist 4 |
| Est. Birth Year | ~1873 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Mary Mayer | Daughter | — | 32 | ~1908 |
| John Mayer | Head | — | 67 | ~1873 |
| Agnes Mayer | Spouse | — | 72 | ~1868 |
Census Appearances
1920
Nelson, Kentucky
Head, age 46
Nelson, Kentucky · implied b. ~1874 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mayer |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Austria |
| Year of Immigration | 1895 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Austria |
| Mother's Birthplace | Austria |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | Emp |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | German |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth Country | Austria |
| Year of Naturalization | 1895 |
| Birthplace (normalized) | austria |
1930
Nelson, Kentucky
Head, age 57
Nelson, Kentucky · implied b. ~1873 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mayer |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | Austria |
| Naturalization Status | Naturalized |
| Year of Immigration | 1889 |
| Age at First Marriage | 32 |
| Father's Birthplace | Austria |
| Mother's Birthplace | Austria |
| Occupation | Farmer |
| Industry | General Farming |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Mother Tongue | German |
| Home Owned/Rented | O |
| Birth Country | Austria |
| Birthplace (normalized) | austria |
1940
Nelson-County, Kentucky
Head, age 67
Nelson-County, Kentucky · implied b. ~1873 — 3 household members
| Surname | Mayer |
| Given Name | John R |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 67 |
| Marital Status | Married |
| Birthplace | Austria |
| 1935 Residence (City) | Mag. Dist #4 |
| 1935 Residence (County) | Nelson |
| Naturalization Status | Naturalized |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth Country | Austria |
| Birthplace (normalized) | austria |
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 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Mayer
Head · 1940 · age 67 · b. ~1873 · Kentucky
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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 — Nelson-County, Kentucky
Open full size
1940 US Federal Census — Nelson-County, Kentucky
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01345-00398)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Charles Cornaby | 11 | Son | — | Kentucky |
| 2 | Joe O Hall | 65 | Head | Farmer | Kentucky |
| 3 | Anna B. Hall | 67 | Wife | — | Kentucky |
| 4 | Frank D Hall | 39 | Head | Farmer | Kentucky |
| 5 | Anna E. Hall | 37 | Wife | — | Kentucky |
| 6 | Mary Belle Hall | 18 | Daughter | — | Kentucky |
| 7 | Phillip Hall | 16 | Son | Farmer | Kentucky |
| 8 | Anna L. Hall | 13 | Daughter | — | Kentucky |
| 9 | William L. Hall | 7 | Son | — | Kentucky |
| 10 | James F. Hall | 4 | Son | — | Kentucky |
| 11 | Charles J. Hall | 1 | Son | — | Kentucky |
| 12 | Jesse D Mayer | 25 | Head | Farmer | Kentucky |
| 13 | Catherine Mayer | 23 | Wife | — | Kentucky |
| 14 | Agnes Mayer | 3 | Daughter | — | Kentucky |
| 15 | Leo Mayer | 2 | Son | — | Kentucky |
| 16 | John Mayer | 0 | Son | — | Kentucky |
| 17 | John R Mayer THIS PERSON | 67 | Head | Farmer | Austria |
| 18 | Agnes Mayer | 72 | Wife | — | Austria |
| 19 | Mary Mayer | 32 | Daughter | — | Kentucky |
| 20 | William T. Bruden | 26 | Head | Farmer | Kentucky |
| 21 | Mary E. Bruden | 23 | Wife | — | Kentucky |
| 22 | Charles W. Bruden | 3 | Son | — | Kentucky |
| 23 | James Edward Bruden | 1 | Son | — | Kentucky |
| 24 | Charles G. D Brown | 48 | Head | Farmer | Kentucky |
| 25 | Lula Brown | 58 | Sister | — | Kentucky |
| 26 | Katherine Brown | 56 | Sister | — | Kentucky |
| 27 | Agnes Brown | 52 | Sister | — | Kentucky |
| 28 | Joe D Osburn | 66 | Head | Farmer | Kentucky |
| 29 | Luke Moore | 50 | Head | Farmer | Kentucky |
| 30 | Effie Moore | 45 | Wife | — | Kentucky |
| 31 | Christine Moore | 15 | Daughter | — | Kentucky |
| 32 | Lucille Moore | 11 | Daughter | — | Kentucky |
| 33 | William Moore | 9 | Son | — | Kentucky |
| 34 | Wesley D Pace | 62 | Head | Farmer | Kentucky |
| 35 | Janie Pace | 55 | Wife | — | Kentucky |
| 36 | Louise Pace | 34 | Daughter | General Clerk | Kentucky |
| 37 | Philip Pace | 23 | Son | Laborer | Kentucky |
| 38 | Clifford Pace | 23 | Son | Laborer | Kentucky |
| 39 | Sarah Pace | 22 | Daughter | Laborer | Kentucky |
| 40 | Burt Mason | 55 | Head | Minister | Kansas |
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)