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Mary Mcmullen — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Philadelphia-County, Pennsylvania
Our Model Tree links this Mary Mcmullen across the 1930 and 1940 US Censuses in Philadelphia-County, Pennsylvania (XGBoost, ~Confirmed) — first a daughter (b.~1917), then head of a 9-person household.
Age 23
b. ~1917
Female
Daughter
Born: PENNA.
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Philadelphia-County, Pennsylvania |
| Surname | MCMULLEN |
| Given Name | MARY |
| Relationship to Head | DAUGHTER |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | PENNA. |
| 1935 Residence (City) | Phila |
| 1935 Residence (County) | PHILADELPHIA |
| Additional Details | |
| Occupation | EXAMINER |
| Industry | CIGAR FACTORY |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 496 |
| Highest Grade | No 11 |
| 1935 Residence | Same Place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | penna |
| Occupation | Examiner |
| Township / Ward | Phila |
| Est. Birth Year | ~1917 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Francis Mcmullen | Son | — | 14 | ~1926 |
| Hugh Mcmullen | Son | — | 10 | ~1930 |
| Teresa Mcmullen | Daughter | — | 7 | ~1933 |
| John Mcmullen | Son | — | 20 | ~1920 |
| Joseph Mcmullen | Son | — | 18 | ~1922 |
| John Mcmullen | Head | — | 45 | ~1895 |
| Ellen Mcmullen | Spouse | — | 46 | ~1894 |
| James Mcmullen | Son | — | 22 | ~1918 |
| Mary Mcmullen | Daughter | — | 23 | ~1917 |
Census Appearances
1930
Philadelphia, Pennsylvania
Daughter, age 12
Philadelphia, Pennsylvania · implied b. ~1918 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McMuller |
| Given Name | Marion |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Penna |
| Father's Birthplace | Penna |
| Mother's Birthplace | Penna |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | penna |
1940
Philadelphia-County, Pennsylvania
Daughter, age 23
Philadelphia-County, Pennsylvania · implied b. ~1917 — 9 household members
| Surname | MCMULLEN |
| Given Name | MARY |
| Relationship to Head | DAUGHTER |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | PENNA. |
| 1935 Residence (City) | Phila |
| 1935 Residence (County) | PHILADELPHIA |
| Occupation | EXAMINER |
| Industry | CIGAR FACTORY |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 496 |
| Highest Grade | No 11 |
| 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 Mary Mcmullen across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Mcmullen
Daughter · 1940 · age 23 · b. ~1917 · Pennsylvania
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Sibling
John Mcmullen
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Hugh Mcmullen
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Mcmullen
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Mcmullen
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Teresa Mcmullen
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Francis Mcmullen
Sibling · 1940 · age 14
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-t0627-03697-00942)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Micheal Hubbard | 21 | Boarder | Sorter | PENNA. |
| 2 | John Gordon | 25 | HEAD | Messenger | PENNA. |
| 3 | Mary Gordon | 22 | WIFE | — | PENNA. |
| 4 | John Gordon | 3 | SON | — | PENNA. |
| 5 | James Brady | 37 | HEAD | Truck Driver | PENNA. |
| 6 | Margaret Brady | 36 | WIFE | — | PENNA. |
| 7 | Patricia Brady | 5 | DAUGHTER | — | PENNA. |
| 8 | George Knox | 76 | HEAD | — | PENNA. |
| 9 | Elizabeth Knox | 43 | DAUGHTER | Operator | PENNA. |
| 10 | James Knox | 40 | SON | Roofer | PENNA. |
| 11 | Henry Rappold | 74 | HEAD | — | GERMANY |
| 12 | Carolina Rappold | 75 | WIFE | — | GERMANY |
| 13 | Adam Rappold | 37 | SON | Sheet Metal Worker | PENNA. |
| 14 | Mary Michler | 59 | HEAD | Table Worker | PENNA. |
| 15 | Helen Michler | 53 | SISTER | Table Worker | PENNA. |
| 16 | Richard Roach | 55 | HEAD | Finisher | PENNA. |
| 17 | Esther Roach | 45 | WIFE | — | PENNA. |
| 18 | Florence Roach | 18 | DAUGHTER | — | PENNA. |
| 19 | Mary Roach | 9 | DAUGHTER | — | PENNA. |
| 20 | Joseph Filler | 22 | SON | Clerk | PENNA. |
| 21 | Margaret Nugent | 75 | HEAD | — | MISSOURI |
| 22 | Anna Pisieczko | 52 | HEAD | Cleaning | AUSTRIA |
| 23 | Olga Pisieczko | 21 | DAUGHTER | Operator | PENNA. |
| 24 | Steven Pisieczko | 19 | SON | Assembler | PENNA. |
| 25 | Alexander Pisieczko | 17 | SON | New Worker | PENNA. |
| 26 | Helen Pisieczko | 13 | DAUGHTER | — | PENNA. |
| 27 | John Mcmullen | 45 | HEAD | Engineer | IRELAND |
| 28 | Ellen Mcmullen | 46 | WIFE | — | IRELAND |
| 29 | Mary Mcmullen THIS PERSON | 23 | DAUGHTER | Examiner | PENNA. |
| 30 | James Mcmullen | 22 | SON | Press Operator | PENNA. |
| 31 | John Jr. Mcmullen | 20 | SON | New Worker | PENNA. |
| 32 | Joseph Mcmullen | 18 | SON | New Worker | PENNA. |
| 33 | Francis Mcmullen | 14 | SON | — | PENNA. |
| 34 | Hugh Mcmullen | 10 | SON | — | PENNA. |
| 35 | Teresa Mcmullen | 7 | DAUGHTER | — | PENNA. |
| 36 | Harry Myers | 65 | HEAD | Engineer | PENNA. |
| 37 | Laviana Myers | 63 | WIFE | — | PENNA. |
| 38 | Sadie Myers | 30 | DAUGHTER | Operator | PENNA. |
| 39 | Daniel Lindsay | 42 | HEAD | Trucker | PENNA. |
| 40 | Mary Lindsay | 42 | WIFE | — | 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)