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John May — 1940 US Census Record
Model Tree available1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this John May across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Philip & Philip — first a head (b.~1909), then head of a 3-person household.
Age 31
b. ~1909
Male
Head
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | May |
| Given Name | John |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Occupation | laborer |
| Industry | construction building |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 988 |
| Highest Grade | No 7 |
| 1935 Residence | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Laborer |
| Township / Ward | Millvale |
| Est. Birth Year | ~1909 |
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 |
|---|---|---|---|---|
| John May | Head | — | 31 | ~1909 |
| Raymond Fatzell | Son | — | 2 | ~1938 |
| Anna May | Spouse | — | 29 | ~1911 |
Census Appearances
1920
Allegheny, Pennsylvania
Son, age 12
Allegheny, Pennsylvania · implied b. ~1908 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | May |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Son, age 22
Allegheny, Pennsylvania · implied b. ~1908 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | May |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Laborer |
| Industry | Steel Mill |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Head, age 31
Allegheny-County, Pennsylvania · implied b. ~1909 — 3 household members
| Surname | May |
| Given Name | John |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh |
| 1935 Residence (County) | Allegheny |
| Occupation | laborer |
| Industry | construction building |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 988 |
| Highest Grade | No 7 |
| 1935 Residence | Pennsylvania |
| 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 John May across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Philip May (~0.92 confidence) and father Philip May (~0.92 confidence) and mother Mary May (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Philip May
b. ~1884
Source father
● Household
· direct · ~0.92
Father
Philip May
b. ~1884
Source father
● Household
· direct · ~0.92
Mother
Mary May
b. ~1888
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John May
Head · 1940 · age 31 · b. ~1909 · Pennsylvania
★ 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 — 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-t0627-03411-00185)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Henry Lutz | 36 | head | Automobile Mechanic | Pennsylvania |
| 2 | Cecelia Lutz | 36 | wife | — | Pennsylvania |
| 3 | Cecelia Lutz | 13 | daughter | — | Pennsylvania |
| 4 | Adolph Stoltenberg | 44 | head | Automobile Mechanic | Pennsylvania |
| 5 | Emma Stoltenberg | 45 | wife | Machine Hand | Pennsylvania |
| 6 | Laverne Stoltenberg | 23 | son | Plate Maker | Pennsylvania |
| 7 | Robert Stoltenberg | 21 | son | — | Pennsylvania |
| 8 | Robert Morris | 28 | head | Foreman | Pennsylvania |
| 9 | Marina Morris | 29 | wife | — | Mexico |
| 10 | Robert Morris | 5 | son | — | Pennsylvania |
| 11 | Infant Morris | 0 | son | — | Pennsylvania |
| 12 | Louis Zimmerman | 38 | lodger | Laborer | Pennsylvania |
| 13 | Charles Stull | 33 | head | Electrician | Pennsylvania |
| 14 | Anna Stull | 33 | wife | — | Pennsylvania |
| 15 | Charles Stull | 10 | son | — | Pennsylvania |
| 16 | Marion Stull | 9 | daughter | — | Pennsylvania |
| 17 | Robert Heffley | 4 | head | — | Pennsylvania |
| 18 | Evelyn Heffley | 4 | daughter | — | Pennsylvania |
| 19 | Thomas Gries | 11 | son | — | Pennsylvania |
| 20 | David Gries | 2 | son | — | Pennsylvania |
| 21 | Simon Schramm | 66 | head | — | Pennsylvania |
| 22 | Anna Schramm | 60 | wife | — | Pennsylvania |
| 23 | Ralph Schramm | 24 | son | 40 | Pennsylvania |
| 24 | William Schramm | 22 | son | 40 | Pennsylvania |
| 25 | Anna Schramm | 20 | daughter | 40 | Pennsylvania |
| 26 | Ross Bucaro | 17 | son | — | Pennsylvania |
| 27 | Frank Bucaro | 16 | son | — | Pennsylvania |
| 28 | Bernard Gerlach | 63 | head | Store Keeper | Pennsylvania |
| 29 | Elizabeth Gerlach | 62 | wife | — | Germany |
| 30 | William Gerlach | 32 | son | 40 | Pennsylvania |
| 31 | Cecilia Kleber | 52 | head | 40 | Pennsylvania |
| 32 | John May THIS PERSON | 31 | head | Laborer | Pennsylvania |
| 33 | Anna May | 29 | wife | — | Pennsylvania |
| 34 | Raymond Fatzell | 2 | son | — | Pennsylvania |
| 35 | Edward Glass | 41 | head | 40 | Pennsylvania |
| 36 | Agnes Glass | 41 | wife | — | Pennsylvania |
| 37 | Marion Schermock | 17 | niece | — | Pennsylvania |
| 38 | Dolly Schermock | 13 | niece | — | Pennsylvania |
| 39 | Mary Finster | 72 | mother | — | Germany |
| 40 | Florinda Paluzzi | 18 | daughter | — | Pennsylvania |
Pedigree Summary
John
Gen 1 · 3 parents
~0.92
Max depth 4 (1900–1950 window)
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)