WM
William Mayer — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Jefferson, Kentucky
Our Model Tree links this William Mayer across the 1910 and 1920 US Censuses in Jefferson, Kentucky (XGBoost, ~Confirmed) — first a son (b.~1895), then head of a 9-person household.
Age 25
b. ~1895
Male
Son
Born: Kentucky
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Jefferson, Kentucky |
| Surname | Mayer |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Township / Ward | City Of Louisville |
| Est. Birth Year | ~1895 |
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.
9 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Charles Mayer | Son | — | 21 | ~1899 |
| William Mayer | Son | — | 25 | ~1895 |
| Margaret Mayer | Daughter | — | 9 | ~1911 |
| Catherine Mayer | Daughter | — | 23 | ~1897 |
| Mary Mayer | Daughter | — | 19 | ~1901 |
| Philip Mayer | Son | — | 13 | ~1907 |
| Mary Mayer | Spouse | — | 50 | ~1870 |
| Willie Mayer | Head | — | 54 | ~1866 |
| Anna Mayer | Daughter | — | 16 | ~1904 |
Census Appearances
1910
Jefferson, Kentucky
Son, age 16
Jefferson, Kentucky · implied b. ~1894 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mayer |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1920
Jefferson, Kentucky
Son, age 25
Jefferson, Kentucky · implied b. ~1895 — 9 household members
| Surname | Mayer |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
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 William Mayer across 2 US Census years (1910 and 1920) in Jefferson, Kentucky, using XGBoost record linkage.
Show:
This person
Anchor record
William Mayer
Son · 1920 · age 25 · b. ~1895 · Kentucky
★ You are viewing this record
Sibling
Margaret Mayer
Sibling · 1920 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Mayer
Sibling · 1920 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Mayer
Sibling · 1920 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Philip Mayer
Sibling · 1920 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anna Mayer
Sibling · 1920 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Mayer
Sibling · 1920 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1920 US Federal Census — Jefferson, Kentucky
Open full size
1920 US Federal Census — Jefferson, Kentucky
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu581unit:0220)
| Line | Name | Age | Relation | Birthplace |
|---|---|---|---|---|
| 1 | Stella Bruce | 22 | Wife | Indiana |
| 2 | Robert Bruce | 17 | Son | Kentucky |
| 3 | Alice Bruce | 16 | Daughter | Kentucky |
| 4 | Walter Bruce | 12 | Son | Kentucky |
| 5 | Eugene Witcher | 36 | Head | Tennessee |
| 6 | Lula Witcher | 32 | Wife | Tennessee |
| 7 | Edna Witcher | 14 | Daughter | Tennessee |
| 8 | Fred Wising | 39 | Head | Germany |
| 9 | Bessie Wising | 30 | Wife | Indiana |
| 10 | Rosetta Wising | 10 | Daughter | Kentucky |
| 11 | Lewis Wising | 7 | Son | Kentucky |
| 12 | Willie Mayer | 54 | Head | Kentucky |
| 13 | Mary Mayer | 50 | Wife | Kentucky |
| 14 | William Mayer THIS PERSON | 25 | Son | Kentucky |
| 15 | Catherine Mayer | 23 | Daughter | Kentucky |
| 16 | Charles Mayer | 21 | Son | Kentucky |
| 17 | Mary Mayer | 19 | Daughter | Kentucky |
| 18 | Anna Mayer | 16 | Daughter | Kentucky |
| 19 | Philip Mayer | 13 | Son | Kentucky |
| 20 | Margaret Mayer | 9 | Daughter | Kentucky |
| 21 | Martin S Callahan | 43 | Head | Kentucky |
| 22 | Catherine Callahan | 39 | Wife | Pennsylvania |
| 23 | Martin Callahan | 14 | Son | Kentucky |
| 24 | Lawrence Callahan | 11 | Son | Kentucky |
| 25 | Catherine Callahan | 9 | Daughter | Kentucky |
| 26 | Mary Virginia Callahan | 7 | Daughter | Kentucky |
| 27 | Agnes Callahan | 5 | Daughter | Kentucky |
| 28 | Frances Callahan | 1 | Daughter | Kentucky |
| 29 | John E Simon | 67 | Head | Kentucky |
| 30 | Matilda Simon | 53 | Wife | Kentucky |
| 31 | Millie Simon | 29 | Daughter | Kentucky |
| 32 | Clarence Simon | 22 | Son | Kentucky |
| 33 | John Kleinhenz | 11 | Grandson | Ohio |
| 34 | John P Gatton | 49 | Head | Kentucky |
| 35 | Sonia A Gatton | 41 | Wife | Georgia |
| 36 | Margaret Bhadley | 28 | Daughter | Kentucky |
| 37 | Clair Gatton | 21 | Daughter | Kentucky |
| 38 | Robert L Gatton | 19 | Son | Kentucky |
| 39 | Lucille Gatton | 16 | Daughter | Kentucky |
| 40 | Winifred Bhadley | 6 | Granddaughter | Kentucky |
| 41 | Alice R Fairleigh | 77 | Head | Kentucky |
| 42 | Nellie G Fairleigh | 40 | Daughter | Kentucky |
| 43 | Archibald Franklin | 42 | Nephew | Kentucky |
| 44 | Fairleigh S Franklin | 42 | Nephew | Kentucky |
| 45 | Frank O'Bryan | 52 | Head | Kentucky |
| 46 | Mary O'Bryan | 46 | Wife | Indiana |
| 47 | Edith Louise O'Bryan | 24 | Daughter | Kentucky |
| 48 | Hula O'Bryan | 21 | Daughter | Kentucky |
| 49 | Elizabeth O'Bryan | 18 | Daughter | Kentucky |
| 50 | Teresa O'Bryan | 16 | Daughter | Kentucky |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)