MS
Mary Smith — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Philadelphia-County, Pennsylvania
Our Model Tree links this Mary Smith across the 1920, 1930 and 1940 US Censuses in Philadelphia-County, Pennsylvania (XGBoost, ~Confirmed) — first a spouse (b.~1879), then head of a 7-person household.
Age 61
b. ~1879
Female
Spouse
Born: Delaware
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Philadelphia-County, Pennsylvania |
| Surname | Smith |
| Given Name | Mary A. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 61 |
| Marital Status | Married |
| Birthplace | Delaware |
| 1935 Residence (City) | Philadelphia |
| 1935 Residence (County) | Philadelphia |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
| Township / Ward | Philadelphia |
| Est. Birth Year | ~1879 |
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 |
|---|---|---|---|---|
| Elsie Smith | Daughter | — | 38 | ~1902 |
| Ethel Smith | Daughter | — | 22 | ~1918 |
| William Smith | Head | — | 65 | ~1875 |
| Harry Smith | Son | — | 34 | ~1906 |
| Robert Smith | Son | — | 18 | ~1922 |
| William Smith | Son | — | 19 | ~1921 |
| Mary Smith | Spouse | — | 61 | ~1879 |
Census Appearances
1920
Philadelphia, Pennsylvania
Spouse, age 40
Philadelphia, Pennsylvania · implied b. ~1880 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Mary J. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Delaware |
| Father's Birthplace | Delaware |
| Mother's Birthplace | Delaware |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
1930
Philadelphia, Pennsylvania
Spouse, age 51
Philadelphia, Pennsylvania · implied b. ~1879 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Delaware |
| Age at First Marriage | 24 |
| Father's Birthplace | Delaware |
| Mother's Birthplace | Delaware |
| Occupation | Instructor |
| Industry | Dress Making |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
1940
Philadelphia-County, Pennsylvania
Spouse, age 61
Philadelphia-County, Pennsylvania · implied b. ~1879 — 7 household members
| Surname | Smith |
| Given Name | Mary A. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 61 |
| Marital Status | Married |
| Birthplace | Delaware |
| 1935 Residence (City) | Philadelphia |
| 1935 Residence (County) | Philadelphia |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
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 Smith across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Smith
Spouse · 1940 · age 61 · b. ~1879 · 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 — 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-t0627-03749-00302)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Sarah Graham | 58 | Wife | — | Pennsylvania |
| 42 | Janice Graham | 26 | Daughter | Nurse | Pennsylvania |
| 43 | Sara Graham | 23 | Daughter | Typist | Pennsylvania |
| 44 | Robert L. Graham | 23 | Son | Laborer | Pennsylvania |
| 45 | Charles R. Graham | 15 | Son | — | Pennsylvania |
| 46 | Catherine C. Graham | 8 | Grand Daughter | — | Pennsylvania |
| 47 | Martha J. Graham | 6 | Grand Daughter | — | Pennsylvania |
| 48 | Joseph Hinze | 61 | Head | Art Metal Worker | Hungary |
| 49 | Raffo Dordato | 71 | Head | Laborer | Italy |
| 50 | Mary Dordato | 66 | Wife | — | Italy |
| 51 | Peter Dordato | 36 | Son | Car Driver | Pennsylvania |
| 52 | Jeannetta Dordato | 29 | Daughter | — | Pennsylvania |
| 53 | Ubaldo Grasso | 42 | Head | — | Pennsylvania |
| 54 | Anthony Grasso | 19 | Son | Bookkeeper | Pennsylvania |
| 55 | Gloria Grasso | 11 | Daughter | — | Pennsylvania |
| 56 | San Clario Grasso | 8 | Grand Son | — | Pennsylvania |
| 57 | Percy Edward Chapman | 52 | Head | Store Keeper | England |
| 58 | Gertrude Chapman | 40 | Wife | Private Secretary | Ohio |
| 59 | Ellen E. Shaw | 52 | Sister | — | England |
| 60 | Robert Greer | 69 | Head | Salesman | Ireland |
| 61 | S. Emma Greer | 69 | Wife | — | Pennsylvania |
| 62 | George F. Greer | 25 | Son | Fire Inspector | Pennsylvania |
| 63 | David H. Greer | 15 | Grand Son | Laborer | New Jersey |
| 64 | Catherine E. Greer | 20 | Daughter in law | Overseer | Pennsylvania |
| 65 | Caroline M. Greer | 15 | Daughter | — | Pennsylvania |
| 66 | William H. Smith | 65 | Head | Conductor | Delaware |
| 67 | Mary A. Smith THIS PERSON | 61 | Wife | — | Delaware |
| 68 | Elsie E. Smith | 38 | Daughter | General Clerk | Delaware |
| 69 | Harry E. Smith | 34 | Son | Chauffeur | Delaware |
| 70 | Ethel M. Smith | 22 | Daughter | Stenographer | Penna |
| 71 | William J. Smith | 19 | Son | New Worker | Penna |
| 72 | Robert O. Smith | 18 | Son | — | Penna |
| 73 | Chester C. Davis | 54 | Head | Proprietor | Penna |
| 74 | Elizabeth A. Davis | 50 | Wife | — | New Jersey |
| 75 | Charles A. Davis | 23 | Son | — | New Jersey |
| 76 | Julia Eldridge | 82 | Mother in law | — | New Jersey |
| 77 | Gilbert R. Jones | 37 | Head | Clerk Mail | Penna |
| 78 | Ella C. Jones | 31 | Wife | — | Penna |
| 79 | Gilbert R. Jones | 15 | Son | — | Penna |
| 80 | Donald G. Jones | 13 | Son | — | Penna |
Related Census Records
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)