MC
Mary Connell — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Philadelphia-County, Pennsylvania
Our Model Tree links this Mary Connell across the 1930 and 1940 US Censuses in Philadelphia-County, Pennsylvania (XGBoost, ~Confirmed) — first a daughter (b.~1928), then head of a 7-person household.
Age 12
b. ~1928
Female
Daughter
Born: Penna
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Philadelphia-County, Pennsylvania |
| Surname | Connell |
| Given Name | Mary F. |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Penna |
| 1935 Residence (City) | Penna |
| 1935 Residence (County) | Philadelphia |
| Additional Details | |
| Highest Grade | S 7 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | penna |
| Township / Ward | Philadelphia |
| Est. Birth Year | ~1928 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Connell | Spouse | — | 43 | ~1897 |
| Daniel Connell | Son | — | 9 | ~1931 |
| Joseph Connell | Son | — | 5 | ~1935 |
| Mary Connell | Daughter | — | 12 | ~1928 |
| Eugene Connell | Head | — | 41 | ~1899 |
| Joan Connell | Daughter | — | 7 | ~1933 |
| Eugene Connell | Son | — | 15 | ~1925 |
Census Appearances
1930
Philadelphia, Pennsylvania
Daughter, age 1
Philadelphia, Pennsylvania · implied b. ~1929 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Connell |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Penna |
| Father's Birthplace | Penna |
| Mother's Birthplace | Penna |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | penna |
1940
Philadelphia-County, Pennsylvania
Daughter, age 12
Philadelphia-County, Pennsylvania · implied b. ~1928 — 7 household members
| Surname | Connell |
| Given Name | Mary F. |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Penna |
| 1935 Residence (City) | Penna |
| 1935 Residence (County) | Philadelphia |
| Highest Grade | S 7 |
| 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 Connell across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Connell
Daughter · 1940 · age 12 · b. ~1928 · Pennsylvania
★ You are viewing this record
Sibling
Joseph Connell
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joan Connell
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eugene Connell
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Daniel Connell
Sibling · 1940 · age 9
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
39 people indexed on this census page (nara:1940:m-t0627-03739-00276)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Anna Heidner | 40 | wife | Housewife | Penna |
| 2 | Ruth Heidner | 14 | daughter | — | Penna |
| 3 | Margaret Heidner | 10 | daughter | — | Penna |
| 4 | John R. Michelman | 29 | head | Plumber | Penna |
| 5 | Frieda Michelman | 27 | wife | Housewife | Germany |
| 6 | Mary A. O'Neill | 82 | head | Housework | Penna |
| 7 | John D. O'Neill | 59 | son | Florist | Penna |
| 9 | George F. Wohlgemuth | 44 | head | Electrician | Penna |
| 10 | Josephine Wohlgemuth | 39 | wife | Housewife | Penna |
| 11 | Frederick T. Wohlgemuth | 17 | son | App. Pattern Maker | Penna |
| 12 | Eugene F. Connell | 41 | head | Police Sgt. | Penna |
| 13 | Mary E. Connell | 43 | wife | Housewife | Penna |
| 14 | Eugene J. Connell | 15 | son | — | Penna |
| 15 | Mary F. Connell THIS PERSON | 12 | daughter | — | Penna |
| 16 | Daniel Connell | 9 | son | — | Penna |
| 17 | Joan Connell | 7 | daughter | — | Penna |
| 18 | Joseph Connell | 5 | son | — | Penna |
| 19 | John F. Hand | 47 | head | Tool & Die Maker | Penna |
| 20 | Alma Hand | 45 | wife | Housewife | New York |
| 21 | Jean Hand | 12 | daughter | — | Penna |
| 22 | Robert Hand | 12 | son | — | Penna |
| 23 | Mary Christensen | 72 | mother-in-law | — | Denmark |
| 24 | James H. Kennedy | 28 | head | Electrician | Penna |
| 25 | Esther Kennedy | 29 | wife | Housewife | Penna |
| 26 | Gail Kennedy | 2 | daughter | — | Penna |
| 27 | Charles P. Kennedy | 67 | father | Master Mechanic | Penna |
| 28 | Louis Justus Rein | 46 | head | Chemist | Penna |
| 29 | Clara H. Rein | 45 | wife | Housewife | Penna |
| 30 | Kathrine Moll | 80 | head | Housewife | Penna |
| 31 | Frederick Peterson | 46 | lodger | Sheet Metal Worker | Denmark |
| 32 | Stella Lepkowski | 68 | head | Housewife | German Poland |
| 33 | Walter Strichler | 55 | head | Carpenter | Penna |
| 34 | Bessie Strichler | 52 | wife | Housewife | Penna |
| 35 | Walter F. Strichler | 25 | son | Hosiery Knitter | Penna |
| 36 | Howard Campbell | 51 | brother-in-law | Laborer | Penna |
| 37 | Walter Barnes | 30 | head | Printer | Penna |
| 38 | Marie C. Barnes | 27 | wife | Housewife | Penna |
| 39 | Walter Jr. Barnes | 5 | son | — | Penna |
| 40 | Marie Ann Barnes | 3 | daughter | — | 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)