MC
Mary Conley — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Philadelphia-County, Pennsylvania
Our Model Tree links this Mary Conley across the 1930 and 1940 US Censuses in Philadelphia-County, Pennsylvania (XGBoost, ~Confirmed) — first a daughter (b.~1926), then head of a 8-person household.
Age 14
b. ~1926
Female
Daughter
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Philadelphia-County, Pennsylvania |
| Surname | Conley |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Philadelphia City |
| 1935 Residence (County) | Philadelphia |
| Additional Details | |
| Occupation | 0 |
| Industry | 0 |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | 0 |
| Township / Ward | Philadelphia City |
| Est. Birth Year | ~1926 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Patricia Conley | Daughter | — | 10 | ~1930 |
| Margaret Conley | Daughter | — | 6 | ~1934 |
| Eleanore Conley | Daughter | — | 15 | ~1925 |
| Mary Conley | Daughter | — | 14 | ~1926 |
| Nellie Conley | Daughter | — | 13 | ~1927 |
| Thomas Conley | Head | — | 42 | ~1898 |
| Thomas Conley | Son | — | 2 | ~1938 |
| Florence Conley | Spouse | — | 36 | ~1904 |
Census Appearances
1930
Philadelphia, Pennsylvania
Daughter, age 4
Philadelphia, Pennsylvania · implied b. ~1926 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Conley |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Philadelphia-County, Pennsylvania
Daughter, age 14
Philadelphia-County, Pennsylvania · implied b. ~1926 — 8 household members
| Surname | Conley |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Philadelphia City |
| 1935 Residence (County) | Philadelphia |
| Occupation | 0 |
| Industry | 0 |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 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 Conley across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Conley
Daughter · 1940 · age 14 · b. ~1926 · Pennsylvania
★ You are viewing this record
Sibling
Patricia Conley
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Conley
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Conley
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Nellie Conley
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eleanore Conley
Sibling · 1940 · age 15
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-t0627-03720-00535)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Ruth | 9 | Daughter | — | Pennsylvania |
| 42 | Bernard Conlen | 44 | Head | Painter | Pennsylvania |
| 43 | Alma Conlen | 40 | Wife | 0 | Pennsylvania |
| 44 | Edward Conlen | 18 | Son | 0 | Pennsylvania |
| 45 | William Cramer | 63 | Head | Painter | Pennsylvania |
| 46 | Margaret Cramer | 64 | Wife | 0 | England |
| 47 | Harry Bogle | 43 | Head | Blacksmith | England |
| 48 | Ellen Bogle | 53 | Wife | 0 | England |
| 49 | Jennie Brunner | 72 | Head | 0 | Pennsylvania |
| 50 | Phoebe Fowler | 46 | Head | Drawer In | Pennsylvania |
| 51 | George Dietrich | 59 | Head | Clerk | Pennsylvania |
| 52 | Sarah Dietrich | 56 | Sister | 0 | Pennsylvania |
| 53 | Thomas Conley | 42 | Head | Knitter | Pennsylvania |
| 54 | Florence Conley | 36 | Wife | 0 | Pennsylvania |
| 55 | Eleanore Conley | 15 | Daughter | 0 | Pennsylvania |
| 56 | Mary Conley THIS PERSON | 14 | Daughter | 0 | Pennsylvania |
| 57 | Nellie Conley | 13 | Daughter | 0 | Pennsylvania |
| 58 | Patricia Conley | 10 | Daughter | 0 | Pennsylvania |
| 59 | Margaret Conley | 6 | Daughter | 0 | Pennsylvania |
| 60 | Thomas Conley | 2 | Son | 0 | Pennsylvania |
| 61 | Mary Magatigan | 56 | Head | Guber | Pennsylvania |
| 62 | John Long | 34 | Head | Ice Man | New Jersey |
| 63 | Anna Long | 31 | Wife | 0 | Pennsylvania |
| 64 | Raymond Long | 29 | Brother | Knitter | Pennsylvania |
| 65 | George Gebhard | 50 | Head | Milkman | Pennsylvania |
| 66 | Eleanore Gebhard | 48 | Wife | 0 | Pennsylvania |
| 67 | Edward G. Benson | 49 | Head | Trucker-Cleaner | Virginia |
| 68 | Edward Benson | 19 | Son | 0 | Pennsylvania |
| 69 | Emma Steetz | 70 | Mother-in-law | 0 | Pennsylvania |
| 70 | William Leinfield | 53 | Head | Drawer-In | Pennsylvania |
| 71 | Catherine Leinfield | 47 | Wife | Floor Helper | Pennsylvania |
| 72 | Richard Leinfield | 26 | Son | Hander-In | Pennsylvania |
| 73 | Naomi Walsh | 26 | Lodger | Steno | Pennsylvania |
| 74 | George Beecher | 29 | Head | Truck Driver | Pennsylvania |
| 75 | Elizabeth Beecher | 26 | Wife | 0 | Pennsylvania |
| 76 | James Beecher | 2 | Son | 0 | Pennsylvania |
| 77 | Anna P. Reichel | 40 | Head | 0 | Pennsylvania |
| 78 | Dorothy Reichel | 15 | Daughter | 0 | Pennsylvania |
| 79 | Martha Braun | 65 | Mother | 0 | Germany |
| 80 | Arthur Mahle | 56 | Head | Dentizer | 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)