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John Mann — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this John Mann across the 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a son (b.~1920), then head of a 9-person household.
Age 20
b. ~1920
Male
Son
Born: New Jersey
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Mann |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Pittsburgh |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Occupation | Laborer |
| Industry | Reforestation Project |
| Class of Worker | GW |
| Hours Worked | 60 |
| Income (1939) | 469 |
| Highest Grade | H-3 |
| 1935 Residence | Same place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | Laborer |
| Township / Ward | Pittsburgh |
| Est. Birth Year | ~1920 |
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 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Marczak | Other | — | 42 | ~1898 |
| Sophie Mann | Daughter | — | 13 | ~1927 |
| Anthony Mann | Head | — | 54 | ~1886 |
| Stanley Mann | Son | — | 6 | ~1934 |
| Helen Mann | Daughter | — | 4 | ~1936 |
| John Mann | Son | — | 20 | ~1920 |
| Stella Mann | Daughter | — | 16 | ~1924 |
| Stella Mann | Spouse | — | 45 | ~1895 |
| Anthony Mann | Son | — | 23 | ~1917 |
Census Appearances
1930
Allegheny, Pennsylvania
Son, age 10
Allegheny, Pennsylvania · implied b. ~1920 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mann |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | Poland |
| Mother's Birthplace | Poland |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Allegheny-County, Pennsylvania
Son, age 20
Allegheny-County, Pennsylvania · implied b. ~1920 — 9 household members
| Surname | Mann |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Pittsburgh |
| 1935 Residence (County) | Allegheny |
| Occupation | Laborer |
| Industry | Reforestation Project |
| Class of Worker | GW |
| Hours Worked | 60 |
| Income (1939) | 469 |
| Highest Grade | H-3 |
| 1935 Residence | Same place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
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 Mann across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Mann
Son · 1940 · age 20 · b. ~1920 · Pennsylvania
★ You are viewing this record
Sibling
Anthony Mann
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Stella Mann
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Sophie Mann
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Stanley Mann
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Mann
Sibling · 1940 · age 4
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
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-t0627-03672-00827)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Edward Covert | 42 | Head | Motorman | Pennsylvania |
| 2 | Frances Covert | 45 | Wife | — | Pennsylvania |
| 3 | Helen Covert | 18 | Daughter | New Worker | Pennsylvania |
| 4 | Thomas Covert | 16 | Son | — | Pennsylvania |
| 5 | Wanda Covert | 13 | Daughter | — | Pennsylvania |
| 6 | George Trautman | 60 | Head | Salesman | Pennsylvania |
| 7 | Lillian Trautman | 54 | Wife | — | Pennsylvania |
| 8 | Lillian Trautman | 25 | Daughter | Salesgirl | Pennsylvania |
| 9 | Robert Trautman | 15 | Son | — | Pennsylvania |
| 10 | Martin Misicko | 51 | Head | Steward | Czechoslovakia |
| 11 | Susie Misicko | 44 | Wife | — | Czechoslovakia |
| 12 | Walter Misicko | 22 | Son | Shipping Clerk | Pennsylvania |
| 13 | Mary Misicko | 20 | Daughter | Stenographer | Pennsylvania |
| 14 | Helen Misicko | 17 | Daughter | — | Pennsylvania |
| 15 | Albert Misicko | 7 | Son | — | Pennsylvania |
| 16 | Anthony Mann | 54 | Head | Furnace Fireman | Poland |
| 17 | Stella Mann | 45 | Wife | — | Poland |
| 18 | Anthony Mann | 23 | Son | New Worker | Rhode Island |
| 19 | John Mann THIS PERSON | 20 | Son | Laborer | New Jersey |
| 20 | Stella Mann | 16 | Daughter | — | New Jersey |
| 21 | Sophie Mann | 13 | Daughter | — | Pennsylvania |
| 22 | Stanley Mann | 6 | Son | — | Pennsylvania |
| 23 | Helen Mann | 4 | Daughter | — | Pennsylvania |
| 24 | John Marczak | 42 | Son-in-law | — | Poland |
| 25 | Rosaline Pusateri | 50 | Head | — | Italy |
| 26 | Anthony Pusateri | 27 | Son | Laborer | Pennsylvania |
| 27 | Josephine Velardita | 33 | Daughter | — | Pennsylvania |
| 28 | Frank Velardita | 13 | Grandson | — | Pennsylvania |
| 29 | Lucy Boyer | 44 | Head | Cook | Pennsylvania |
| 30 | Francis Boyer | 22 | Son | Truck Driver | Pennsylvania |
| 31 | Mildred Boyer | 21 | Daughter | — | Pennsylvania |
| 32 | Lois Boyer | 12 | Daughter | — | Pennsylvania |
| 33 | Mary Small | 46 | Head | — | Pennsylvania |
| 34 | Mary Small | 26 | Daughter | Steam Presser | Pennsylvania |
| 35 | Thomas Small | 28 | Daughter | Waitress | Pennsylvania |
| 36 | Ruth Small | 12 | Daughter | — | Pennsylvania |
| 37 | Samuel Fisher | 75 | Head | — | Poland |
| 38 | Tillie Fisher | 63 | Wife | — | Poland |
| 39 | Rosie Pittler | 53 | Sister-in-law | — | Poland |
| 40 | George Haramic | 61 | Head | Notary Public | Jugo-Slavia |
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)