WM
William Mayer — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this William Mayer across the 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1903), then head of a 5-person household.
Age 37
b. ~1903
Male
Head
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Mayer |
| Given Name | William C. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | West View (Boro) |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Occupation | Photo engraver |
| Industry | Newspaper plant |
| Class of Worker | PW |
| Hours Worked | 37 |
| Income (1939) | 3400 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same house |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Photo Engraver |
| Township / Ward | West View Boro |
| Est. Birth Year | ~1903 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| William Mayer | Son | — | 16 | ~1924 |
| Lillian Mayer | Spouse | — | 36 | ~1904 |
| Jean Mayer | Daughter | — | 12 | ~1928 |
| Richard Mayer | Son | — | 10 | ~1930 |
| William Mayer | Head | — | 37 | ~1903 |
Census Appearances
1930
Allegheny, Pennsylvania
Head, age 27
Allegheny, Pennsylvania · implied b. ~1903 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mayor |
| Given Name | William C |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 19 |
| Father's Birthplace | Canada-English |
| Mother's Birthplace | Pennsylvania |
| Occupation | photoengraver |
| Industry | engraving co |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | $5000 |
| Radio Set | R |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Head, age 37
Allegheny-County, Pennsylvania · implied b. ~1903 — 5 household members
| Surname | Mayer |
| Given Name | William C. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | West View (Boro) |
| 1935 Residence (County) | Allegheny |
| Occupation | Photo engraver |
| Industry | Newspaper plant |
| Class of Worker | PW |
| Hours Worked | 37 |
| Income (1939) | 3400 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same house |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Mayer
Head · 1940 · age 37 · b. ~1903 · Pennsylvania
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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 — Allegheny-County, Pennsylvania
Open full size
1940 US Federal Census — Allegheny-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03420-00754)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Samuel Barbene | 37 | Head | Truck Driver | Michigan |
| 2 | Leola (X) Barbene | 36 | Wife | — | Michigan |
| 3 | Margaret Barbene | 9 | Daughter | — | Michigan |
| 4 | Virginia Barbene | 8 | Daughter | — | Michigan |
| 5 | Here Ends Block 10 And Begins 11 Barbene | None | — | — | — |
| 6 | John Boehler | 34 | Head | Truck Driver | Pennsylvania |
| 7 | Hilda (X) Boehler | 31 | Wife | — | Pennsylvania |
| 8 | Imogene Boehler | 1 | Daughter | — | Pennsylvania |
| 9 | John O'Mahony | 31 | Head | Clerk | Pennsylvania |
| 10 | Mary (X) O'Mahony | 31 | Wife | — | Pennsylvania |
| 11 | John O'Mahony | 9 | Son | — | Pennsylvania |
| 12 | William O'Mahony | 5 | Son | — | Pennsylvania |
| 13 | Daniel O'Mahony | 3 | Son | — | Pennsylvania |
| 14 | Mary (X) Short | 52 | Head | Salesman | Pennsylvania |
| 15 | Mary Short | 27 | Wife | — | Pennsylvania |
| 16 | Jane Short | 11 | Daughter | — | Pennsylvania |
| 17 | Donald Short | 4 | Son | — | Pennsylvania |
| 18 | August Schmitt | 30 | Head | Bookkeeping | Pennsylvania |
| 19 | Elizabeth (X) Schmitt | 25 | Wife | — | Pennsylvania |
| 20 | John Schmitt | 9 | Son | — | Pennsylvania |
| 21 | Paul Schmitt | 7 | Son | — | Pennsylvania |
| 22 | Eileen Schmitt | 1 | Daughter | — | Pennsylvania |
| 23 | William Moore | 44 | Head | Truck Driver | Pennsylvania |
| 24 | Emily (X) Moore | 41 | Wife | — | England |
| 25 | Joan Moore | 13 | Daughter | — | Pennsylvania |
| 26 | John Vilek | 53 | Head | Painter | Illinois |
| 27 | Stella (X) Vilek | 52 | Wife | — | Illinois |
| 28 | Charles (X) Ide | 32 | Head | Bookkeeping | Pennsylvania |
| 29 | Martha Mary Ide | 29 | Wife | — | Pennsylvania |
| 30 | Charles H. Ide | 3 | Son | — | Pennsylvania |
| 31 | Mary Martha Ide | 1 | Daughter | — | Pennsylvania |
| 32 | William C. Mayer THIS PERSON | 37 | Head | Photo Engraver | Pennsylvania |
| 33 | Lillian (X) Mayer | 36 | Wife | — | Pennsylvania |
| 34 | William H. Mayer | 16 | Son | News Paper | Pennsylvania |
| 35 | Jean L. Mayer | 12 | Daughter | — | Pennsylvania |
| 36 | Richard C. Mayer | 10 | Son | — | Pennsylvania |
| 37 | James A. Warner | 40 | Head | Bookkeeper | Pennsylvania |
| 38 | Mary Eliz. (X) Warner | 34 | Wife | Bookkeeper | Pennsylvania |
| 39 | Janet Warner | 5 | Daughter | — | Pennsylvania |
| 40 | Anna C. (X) Schultz | 65 | Head | Housekeeper | Pennsylvania |
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)