MG
Mary Gardner — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Erie-County, Pennsylvania
Our Model Tree links this Mary Gardner across the 1930 and 1940 US Censuses in Erie-County, Pennsylvania (XGBoost, ~Confirmed) — first a daughter (b.~1924), then head of a 9-person household.
Age 16
b. ~1924
Female
Daughter
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Erie-County, Pennsylvania |
| Surname | Gardner |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Erie City |
| 1935 Residence (County) | Erie |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | Hs 2 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Erie City |
| Est. Birth Year | ~1924 |
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 |
|---|---|---|---|---|
| Ruth Gardner | Daughter | — | 20 | ~1920 |
| Elinora Gardner | Daughter | — | 5 | ~1935 |
| Mary Gardner | Daughter | — | 16 | ~1924 |
| Evelyn Gardner | Daughter | — | 18 | ~1922 |
| William Gardner | Head | — | 41 | ~1899 |
| Richard Gardner | Son | — | 10 | ~1930 |
| William Gardner | Son | — | 17 | ~1923 |
| Edward Gardner | Son | — | 14 | ~1926 |
| Evelyn Gardner | Spouse | — | 41 | ~1899 |
Census Appearances
1930
Erie, Pennsylvania
Daughter, age 5
Erie, Pennsylvania · implied b. ~1925 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gardner |
| Given Name | Mary E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | New York |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Erie-County, Pennsylvania
Daughter, age 16
Erie-County, Pennsylvania · implied b. ~1924 — 9 household members
| Surname | Gardner |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Erie City |
| 1935 Residence (County) | Erie |
| Income (1939) | 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 Gardner across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Gardner
Daughter · 1940 · age 16 · b. ~1924 · Pennsylvania
★ You are viewing this record
Sibling
Elinora Gardner
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Gardner
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Gardner
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Gardner
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Gardner
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Evelyn Gardner
Sibling · 1940 · age 18
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 — Erie-County, Pennsylvania
Open full size
1940 US Federal Census — Erie-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03651-00557)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Charles J. Trapp | 52 | Head | Truck Driver | Pennsylvania |
| 2 | Anna J. Trapp | 53 | Wife | — | Pennsylvania |
| 3 | Jerome A. Trapp | 33 | Head | Truck Driver | Pennsylvania |
| 4 | Elinora S. Trapp | 32 | Wife | — | Pennsylvania |
| 5 | Ruth A. Trapp | 14 | Daughter | — | Pennsylvania |
| 6 | Clarence M. Trapp | 30 | Head | Machine Hand | Pennsylvania |
| 7 | Gladys Trapp | 29 | Wife | — | Pennsylvania |
| 8 | Joseph E. Brunner | 49 | Head | Labor | Pennsylvania |
| 9 | Afra Brunner | 43 | Wife | — | Pennsylvania |
| 10 | Harold A. Brunner | 18 | Son | Salesman | Pennsylvania |
| 11 | Kenneth A. Brunner | 11 | Son | — | Pennsylvania |
| 12 | Eleanor H. Dunne | 31 | Head | — | Pennsylvania |
| 13 | Patricia A. Dunne | 10 | Daughter | — | Pennsylvania |
| 14 | Agnes M. Fasel | 47 | Partner | Saleswoman | Pennsylvania |
| 15 | Joan M. Fasel | 13 | Daughter | — | Pennsylvania |
| 16 | James E. Mcintire | 35 | Head | Service Man | Pennsylvania |
| 17 | Alice J. Mcintire | 35 | Wife | — | Pennsylvania |
| 18 | Elaine M. Mcintire | 13 | Daughter | — | Pennsylvania |
| 19 | Maryrita A. Mcintire | 10 | Daughter | — | Pennsylvania |
| 20 | Kathleen A. Mcintire | 3 | Daughter | — | Pennsylvania |
| 21 | James E. Mcintire | 1 | Son | — | Pennsylvania |
| 22 | Fred J. Hilbert | 34 | Head | Salesman | Pennsylvania |
| 23 | Ann J. Hilbert | 33 | Wife | — | Pennsylvania |
| 24 | Richard F. Hilbert | 11 | Son | — | Pennsylvania |
| 25 | Thomas G. Hilbert | 6 | Son | — | Pennsylvania |
| 26 | David A. Hilbert | 2 | Son | — | Pennsylvania |
| 27 | John K. Condon | 23 | Head | Labor | Pennsylvania |
| 28 | Evelyn A. Condon | 21 | Wife | — | Pennsylvania |
| 29 | Thomas D. Condon | 24 | Head | Machine Hand | Pennsylvania |
| 30 | Marjorie A. Condon | 21 | Wife | — | Oklahoma |
| 31 | Judith M. Condon | 2 | Daughter | — | Pennsylvania |
| 32 | William G. Gardner | 41 | Head | Armature Winder | New York |
| 33 | Evelyn D. Gardner | 41 | Wife | — | Pennsylvania |
| 34 | Ruth H. Gardner | 20 | Daughter | Housekeeper | Pennsylvania |
| 35 | Evelyn K. Gardner | 18 | Daughter | — | Pennsylvania |
| 36 | William Jr. Gardner | 17 | Son | — | Pennsylvania |
| 37 | Mary E. Gardner THIS PERSON | 16 | Daughter | — | Pennsylvania |
| 38 | Edward R. Gardner | 14 | Son | — | Pennsylvania |
| 39 | Richard G. Gardner | 10 | Son | — | Pennsylvania |
| 40 | Elinora S. Gardner | 5 | Daughter | — | 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)