MG
Mary Grant — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Delaware-County, Pennsylvania
Our Model Tree links this Mary Grant across the 1920, 1930 and 1940 US Censuses in Delaware-County, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1897), then head of a 3-person household.
Age 43
b. ~1897
Female
Head
Born: Pennsylvania
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Delaware-County, Pennsylvania |
| Surname | Grant |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 43 |
| Marital Status | Widowed |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Chester |
| 1935 Residence (County) | Delaware |
| Additional Details | |
| Occupation | Housekeeper |
| Industry | Private Family |
| Class of Worker | PW |
| Hours Worked | 26 |
| Income (1939) | 130 |
| Highest Grade | No 3 |
| 1935 Residence | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Housekeeper |
| Township / Ward | Booth Corner |
| Est. Birth Year | ~1897 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Theresa Grant | Daughter | — | 9 | ~1931 |
| Anna Morson | Daughter | — | 19 | ~1921 |
| Mary Grant | Head | — | 43 | ~1897 |
Census Appearances
1920
Philadelphia, Pennsylvania
Spouse, age 24
Philadelphia, Pennsylvania · implied b. ~1896 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Grant |
| Given Name | Mary E |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Philadelphia, Pennsylvania
Spouse, age 32
Philadelphia, Pennsylvania · implied b. ~1898 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Grant |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 22 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Delaware-County, Pennsylvania
Head, age 43
Delaware-County, Pennsylvania · implied b. ~1897 — 3 household members
| Surname | Grant |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 43 |
| Marital Status | Widowed |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Chester |
| 1935 Residence (County) | Delaware |
| Occupation | Housekeeper |
| Industry | Private Family |
| Class of Worker | PW |
| Hours Worked | 26 |
| Income (1939) | 130 |
| Highest Grade | No 3 |
| 1935 Residence | Pennsylvania |
| 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 Grant across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Grant
Head · 1940 · age 43 · b. ~1897 · Pennsylvania
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Delaware-County, Pennsylvania
Open full size
1940 US Federal Census — Delaware-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03487-00178)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Bessie Savona | 46 | Wife | — | Italy |
| 2 | Bennie Buffamonde | 25 | Step-son | Laborer | New York |
| 3 | Joseph Buffamonde | 23 | Step-son | Laborer | New York |
| 4 | Dau-Stella Audrey | 30 | Daughter-in-law | — | Delaware |
| 5 | Granddaughter Bessie A. | None | F | — | — |
| 6 | Granddaughter Audrey | None | F | — | — |
| 7 | Phillip Digati | 38 | Head | Laborer | Italy |
| 8 | Isabelle Digati | 26 | Wife | — | Pennsylvania |
| 9 | Jackie Digati | 7 | Son | — | Pennsylvania |
| 10 | Phillip Digati | 2 | Son | — | Pennsylvania |
| 11 | Robert Sipps | 63 | Head | Farmer | Pennsylvania |
| 12 | Fannie Sipps | 68 | Wife | — | Pennsylvania |
| 13 | Joseph Sipps | 13 | Grandson | — | Pennsylvania |
| 14 | Lewis H. Talley | 75 | Head | Merchant | Delaware |
| 15 | Frances Talley | 54 | Wife | — | Delaware |
| 16 | Albert L. Mayer | 27 | Son-in-law | Paper Maker | Kentucky |
| 17 | Frances Mayer | 24 | Daughter | — | Delaware |
| 18 | Elmer J. Deveraux | 27 | Lodger | Teacher | Pennsylvania |
| 19 | Emma F. Eaceus | 63 | Head | — | Pennsylvania |
| 20 | Robert V. Eaceus | 23 | Son | Laborer | Pennsylvania |
| 21 | Edna F. Eaceus | 30 | Daughter | — | Pennsylvania |
| 22 | Lydia Eaceus | 18 | Daughter | Housekeeper | Pennsylvania |
| 23 | Clifford A. Eaceus | 32 | Son | Carpenter | Pennsylvania |
| 24 | Ella Mae Eaceus | 26 | Daughter-in-law | — | Pennsylvania |
| 25 | Josephine F. Eaceus | 6 | Granddaughter | — | Delaware |
| 26 | Clifford A. Eaceus | 2 | Grandson | — | Delaware |
| 27 | Patricia Eaceus | 0 | Granddaughter | — | Pennsylvania |
| 28 | Howard Journey | 60 | Head | Laborer | Pennsylvania |
| 29 | Mattie Journey | 59 | Wife | Preparing Food | Delaware |
| 30 | Emelene Journey | 17 | Daughter | New Worker | Pennsylvania |
| 31 | Alice Ning | 33 | Daughter | Preparing Food | Pennsylvania |
| 32 | Harry Ning | 13 | Grandson | — | Pennsylvania |
| 33 | John Foolke | 62 | Head | — | Delaware |
| 34 | John Congelton | 58 | Head | Tractor Operator | Pennsylvania |
| 35 | Addie Congelton | 56 | Wife | — | Pennsylvania |
| 36 | Earl Congelton | 20 | Son | Laborer | Pennsylvania |
| 37 | Albert Congelton | 16 | Son | — | Pennsylvania |
| 38 | Mary Grant THIS PERSON | 43 | Head | Housekeeper | Pennsylvania |
| 39 | Theresa Grant | 9 | Daughter | — | Pennsylvania |
| 40 | Anna Mary Morson | 19 | Daughter | New Worker | 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)