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Mary Mcconnell — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Mercer-County, Pennsylvania
Our Model Tree links this Mary Mcconnell across the 1930 and 1940 US Censuses in Mercer-County, Pennsylvania (XGBoost, ~Confirmed) — first a daughter (b.~1927), then head of a 8-person household.
Age 13
b. ~1927
Female
Daughter
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Mercer-County, Pennsylvania |
| Surname | McConnell |
| Given Name | Mary Lou |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Greenville borough |
| 1935 Residence (County) | Mercer |
| Additional Details | |
| Highest Grade | Hs 1 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Greenville Borough |
| Est. Birth Year | ~1927 |
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 |
|---|---|---|---|---|
| Robert Mcconnell | Head | — | 36 | ~1904 |
| Mary Mcconnell | Daughter | — | 13 | ~1927 |
| Catherine Mcconnell | Daughter | — | 7 | ~1933 |
| Susanne Mcconnell | Daughter | — | 5 | ~1935 |
| Barbara Mcconnell | Daughter | — | 10 | ~1930 |
| Robert Mcconnell | Son | — | 9 | ~1931 |
| Mabel Mcconnell | Spouse | — | 34 | ~1906 |
| Jack Mcconnell | Son | — | 4 | ~1936 |
Census Appearances
1930
Mercer, Pennsylvania
Daughter, age 2
Mercer, Pennsylvania · implied b. ~1928 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McConnell |
| Given Name | Mary L. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Mercer-County, Pennsylvania
Daughter, age 13
Mercer-County, Pennsylvania · implied b. ~1927 — 8 household members
| Surname | McConnell |
| Given Name | Mary Lou |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Greenville borough |
| 1935 Residence (County) | Mercer |
| Highest Grade | Hs 1 |
| 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 Mcconnell across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Mcconnell
Daughter · 1940 · age 13 · b. ~1927 · Pennsylvania
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Sibling
Catherine Mcconnell
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Susanne Mcconnell
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jack Mcconnell
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Barbara Mcconnell
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Mcconnell
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 — Mercer-County, Pennsylvania
Open full size
1940 US Federal Census — Mercer-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03570-00777)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John F. Trumble | 62 | Head | Baggage Man | Pennsylvania |
| 2 | Ethel Trumble | 52 | Wife | — | Pennsylvania |
| 3 | Samuel Sloan | 46 | Head | Partner | Pennsylvania |
| 4 | Hulda Sloan | 54 | Wife | — | Pennsylvania |
| 5 | Robert Mcconnell | 36 | Head | City Carrier | Pennsylvania |
| 6 | Mabel Mcconnell | 34 | Wife | — | Pennsylvania |
| 7 | Mary Lou Mcconnell THIS PERSON | 13 | Daughter | — | Pennsylvania |
| 8 | Barbara Mcconnell | 10 | Daughter | — | Pennsylvania |
| 9 | Robert Mcconnell | 9 | Son | — | Pennsylvania |
| 10 | Catherine Mcconnell | 7 | Daughter | — | Pennsylvania |
| 11 | Susanne Mcconnell | 5 | Daughter | — | Pennsylvania |
| 12 | Jack Mcconnell | 4 | Son | — | Pennsylvania |
| 13 | George Stoyer | 37 | Head | Mechanic | Pennsylvania |
| 14 | Mary Stoyer | 36 | Wife | — | Pennsylvania |
| 15 | Gary Stoyer | 2 | Son | — | Pennsylvania |
| 16 | Robert Sweigard | 44 | Head | Fireman R.R. | Pennsylvania |
| 17 | Lucille Sweigard | 35 | Wife | Clerk | Pennsylvania |
| 18 | Donna Sweigard | 12 | Daughter | — | Pennsylvania |
| 19 | Robert Sweigard | 11 | Son | — | Pennsylvania |
| 20 | Charles Brackenridge | 48 | Head | Laborer | Pennsylvania |
| 21 | Alice Brackenridge | 48 | Wife | — | Pennsylvania |
| 22 | Dorthona Brackenridge | 26 | Daughter | Clerk | Pennsylvania |
| 23 | John Brackenridge | 22 | Son | — | Pennsylvania |
| 24 | James Allen | 40 | Head | Rivet Heater | Pennsylvania |
| 25 | Lillian Allen | 37 | Wife | — | Pennsylvania |
| 26 | Kenneth Allen | 15 | Son | — | Pennsylvania |
| 27 | Beverly Allen | 12 | Daughter | — | Pennsylvania |
| 28 | Wilbur Wilkins | 35 | Head | Draftsman | Ohio |
| 29 | Lucille Wilkins | 34 | Wife | — | Pennsylvania |
| 30 | Wilbur Eugene Wilkins | 7 | Son | — | Pennsylvania |
| 31 | Caroline Lucille Wilkins | 4 | Daughter | — | Pennsylvania |
| 32 | John Frampton | 32 | Head | Teller | Pennsylvania |
| 33 | Mary Frampton | 34 | Wife | — | Pennsylvania |
| 34 | Mary Frampton | 5 | Daughter | — | Pennsylvania |
| 35 | Elizabeth Ann Frampton | 0 | Daughter | — | Pennsylvania |
| 36 | Pasquale Genovesi | 54 | Head | Laborer | Italy |
| 37 | Giacomina Genovesi | 48 | Wife | — | Italy |
| 38 | Antonette Genovesi | 15 | Daughter | — | Pennsylvania |
| 39 | Margaret Genovesi | 13 | Daughter | — | Pennsylvania |
| 40 | John Genovesi | 12 | Son | — | 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)