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John Mann — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Philadelphia-County, Pennsylvania
Our Model Tree links this John Mann across the 1930 and 1940 US Censuses in Philadelphia-County, Pennsylvania (XGBoost, ~Confirmed) — first a son (b.~1916), then head of a 6-person household.
Age 24
b. ~1916
Male
Son
Born: Penna
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Philadelphia-County, Pennsylvania |
| Surname | Mann |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Penna |
| 1935 Residence (City) | Philadelphia |
| 1935 Residence (County) | Phila |
| Additional Details | |
| Hours Worked | 28 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | penna |
| Est. Birth Year | ~1916 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Annie Mann | Spouse | — | 70 | ~1870 |
| John Mann | Son | — | 24 | ~1916 |
| Anna Mann | Daughter | — | 42 | ~1898 |
| Joseph Mann | Son | — | 30 | ~1910 |
| Regina Mann | Daughter | — | 41 | ~1899 |
| John Mann | Head | — | 71 | ~1869 |
Census Appearances
1930
Philadelphia, Pennsylvania
Son, age 13
Philadelphia, Pennsylvania · implied b. ~1917 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Monn |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Penna |
| Father's Birthplace | Penna |
| Mother's Birthplace | Penna |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | penna |
1940
Philadelphia-County, Pennsylvania
Son, age 24
Philadelphia-County, Pennsylvania · implied b. ~1916 — 6 household members
| Surname | Mann |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Penna |
| 1935 Residence (City) | Philadelphia |
| 1935 Residence (County) | Phila |
| Hours Worked | 28 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | penna |
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 24 · b. ~1916 · Pennsylvania
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Sibling
Regina Mann
Sibling · 1940 · age 41
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anna Mann
Sibling · 1940 · age 42
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Mann
Sibling · 1940 · age 30
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 — Philadelphia-County, Pennsylvania
Open full size
1940 US Federal Census — Philadelphia-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03730-00386)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Martin Donegan | 42 | Head | Welder | Penna |
| 42 | Elizabeth Donegan | 39 | Wife | — | Penna |
| 43 | James Donegan | 14 | Son | — | Penna |
| 44 | Martin Donegan | 11 | Son | — | Penna |
| 45 | Mary Donegan | 8 | Daughter | — | Penna |
| 46 | Eugene Donegan | 5 | Son | — | Penna |
| 47 | Carrie Ignazio | 55 | Head | — | Italy |
| 48 | William Ignazio | 28 | Son | Truck Driver | Penna |
| 49 | Rita Ignazio | 21 | Daughter | Checker | Penna |
| 50 | Edith Smith | 36 | Daughter | Checker | Penna |
| 51 | William Smith | 15 | Grandson | — | Penna |
| 52 | John Smith | 12 | Grandson | — | Penna |
| 53 | John Stange | 55 | Head | Laborer | Penna |
| 54 | Richard Carlson | 29 | Head | Fireman | Penna |
| 55 | Josephine Carlson | 28 | Wife | — | Penna |
| 56 | Richard Carlson | 2 | Son | — | Penna |
| 57 | Joan Carlson | 1 | Daughter | — | Penna |
| 58 | Daniel Hodgson | 44 | Head | Oiler | Penna |
| 59 | Rose Hodgson | 40 | Wife | Seamstress | New Jersey |
| 60 | Daniel Hodgson | 22 | Son | Stenographer | Penna |
| 61 | William Hodgson | 20 | Son | Stock Boy | Penna |
| 62 | Rosalie Hodgson | 18 | Daughter | — | Penna |
| 63 | Beatrice Hodgson | 16 | Daughter | — | Penna |
| 64 | Francis Hodgson | 7 | Son | — | Penna |
| 65 | John Hodgson | 5 | Son | — | Penna |
| 66 | John Mann | 71 | Head | Watchman | Penna |
| 67 | Annie Mann | 70 | Wife | — | Penna |
| 68 | Anna Mann | 42 | Daughter | Elevator Operator | Penna |
| 69 | Regina Mann | 41 | Daughter | Elevator Operator | Penna |
| 70 | Joseph Mann | 30 | Son | — | Penna |
| 71 | John Mann THIS PERSON | 24 | Son | — | Penna |
| 72 | William Taylor | 42 | Head | Steam Fitter | Penna |
| 73 | Catherine Taylor | 35 | Wife | — | Penna |
| 74 | William Taylor | 17 | Son | — | Penna |
| 75 | James Taylor | 15 | Son | — | Penna |
| 76 | Bertha Taylor | 12 | Daughter | — | Penna |
| 77 | Catherine Taylor | 8 | Daughter | — | Penna |
| 78 | Walter Henrie | 45 | Head | Carpenter | Norway |
| 79 | Matilda Henrie | 43 | Wife | — | Penna |
| 80 | Walter Henrie | 13 | Son | — | Penna |
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)