ML
Mary Logan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Philadelphia-County, Pennsylvania
Our Model Tree links this Mary Logan across the 1930 and 1940 US Censuses in Philadelphia-County, Pennsylvania (XGBoost, ~Confirmed) — first a daughter (b.~1925), then head of a 12-person household.
Age 15
b. ~1925
Female
Daughter
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Philadelphia-County, Pennsylvania |
| Surname | Logan |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Philadelphia |
| 1935 Residence (County) | Philadelphia |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | Hs 2 |
| 1935 Residence | Same Place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Philadelphia |
| Est. Birth Year | ~1925 |
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.
12 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Patricia Logan | Daughter | — | 13 | ~1927 |
| Mary Logan | Daughter | — | 15 | ~1925 |
| Anne Logan | Daughter | — | 5 | ~1935 |
| James Logan | Head | — | 55 | ~1885 |
| Hugh Harold | Other | — | 46 | ~1894 |
| Anne Logan | Other | — | 84 | ~1856 |
| Joseph Logan | Son | — | 19 | ~1921 |
| Gerald Logan | Son | — | 14 | ~1926 |
| August Logan | Son | — | 23 | ~1917 |
| Edward Logan | Son | — | 21 | ~1919 |
| Thomas Logan | Son | — | 17 | ~1923 |
| Katherine Logan | Spouse | — | 54 | ~1886 |
Census Appearances
1930
Philadelphia, Pennsylvania
Daughter, age 4
Philadelphia, Pennsylvania · implied b. ~1926 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Logan |
| Given Name | Mary |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | England |
| Occupation | none |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Philadelphia-County, Pennsylvania
Daughter, age 15
Philadelphia-County, Pennsylvania · implied b. ~1925 — 12 household members
| Surname | Logan |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Philadelphia |
| 1935 Residence (County) | Philadelphia |
| Class of Worker | 0 |
| Highest Grade | Hs 2 |
| 1935 Residence | Same Place |
| 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 Mary Logan across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Logan
Daughter · 1940 · age 15 · b. ~1925 · Pennsylvania
★ You are viewing this record
Sibling
Gerald Logan
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Logan
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anne Logan
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Logan
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
August Logan
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Logan
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patricia Logan
Sibling · 1940 · age 13
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-t0627-03697-00697)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Joanna Rouchs | 53 | Head | Housekeeper | Pennsylvania |
| 42 | Anna Mae Rouchs | 15 | Daughter | Housekeeper | Pennsylvania |
| 43 | Alberta Yeager | 25 | Daughter | Housekeeper | Pennsylvania |
| 44 | Mary Yeager | 23 | Daughter | — | Pennsylvania |
| 45 | John Yeager | 9 | Son | — | Pennsylvania |
| 46 | Robert Yeager | 6 | Son | — | Pennsylvania |
| 47 | Esther Yeager | 4 | Daughter | — | Pennsylvania |
| 48 | Albert Yeager | 2 | Son | — | Pennsylvania |
| 49 | James Logan | 55 | Head | Machinist | Pennsylvania |
| 50 | Katherine Logan | 54 | Wife | — | Pennsylvania |
| 51 | August Logan | 23 | Son | Machinist | Pennsylvania |
| 52 | Edward Logan | 21 | Son | Picture Clerk | Pennsylvania |
| 53 | Joseph Logan | 19 | Son | — | Pennsylvania |
| 54 | Thomas Logan | 17 | Son | Office Boy | Pennsylvania |
| 55 | Mary Logan THIS PERSON | 15 | Daughter | — | Pennsylvania |
| 56 | Gerald Logan | 14 | Son | — | Pennsylvania |
| 57 | Patricia Logan | 13 | Daughter | — | Pennsylvania |
| 58 | Anne Logan | 5 | Daughter | — | Pennsylvania |
| 59 | Anne Logan | 84 | Mother | — | Ireland |
| 60 | Hugh Harold | 46 | Lodger | Machinist | Pennsylvania |
| 61 | Findley H Wilson | 68 | Head | Minister | Ohio |
| 62 | Emma Wilson | 68 | Wife | — | Pennsylvania |
| 63 | Robert Linder | 43 | Head | Clerk | Pennsylvania |
| 64 | Florence Linder | 41 | Sister | — | New Jersey |
| 65 | Anna Linder | 52 | Sister | Loom Operator | Pennsylvania |
| 66 | Kate Linder | 51 | Sister | Silk Operator | Pennsylvania |
| 67 | Harry Wilkins | 70 | Head | — | Pennsylvania |
| 68 | Emma Seltforth | 42 | Head | Housekeeper | Pennsylvania |
| 69 | Elena Seltforth | 8 | Daughter | — | Pennsylvania |
| 70 | Rose Phelps | 60 | Head | — | Pennsylvania |
| 71 | Esther Phelps | 60 | Sister | — | Pennsylvania |
| 72 | Walter Schaefer | 31 | Head | Wood Carver | Pennsylvania |
| 73 | Anna Schaefer | 29 | Wife | — | Pennsylvania |
| 74 | Joan Schaefer | 8 | Daughter | — | Pennsylvania |
| 75 | Francis Selmarr | 41 | Head | Investigator | Pennsylvania |
| 76 | Alberta Selmarr | 37 | Wife | — | Pennsylvania |
| 77 | Alberta J Selmarr | 17 | Daughter | — | Pennsylvania |
| 78 | Anton Berbaher | 58 | Head | — | Yugoslavia |
| 79 | Leposia Berbaher | 51 | Wife | — | Yugoslavia |
| 80 | Milko Berbaher | 22 | Daughter | Truck Driver | 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)