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Mary Montgomery — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Philadelphia-County, Pennsylvania
Our Model Tree links this Mary Montgomery across the 1920, 1930 and 1940 US Censuses in Philadelphia-County, Pennsylvania (XGBoost, ~Confirmed) — first a spouse (b.~1878), then head of a 7-person household.
Age 62
b. ~1878
Female
Spouse
Born: Ireland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Philadelphia-County, Pennsylvania |
| Surname | Montgomery |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 62 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | Philadelphia |
| 1935 Residence (County) | Philadelphia |
| Naturalization Status | Naturalized |
| Additional Details | |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Township / Ward | Philadelphia |
| Est. Birth Year | ~1878 |
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 |
|---|---|---|---|---|
| Anna Montgomery | Daughter | — | 31 | ~1909 |
| Sarah Montgomery | Daughter | — | 32 | ~1908 |
| Edward Montgomery | Head | — | 62 | ~1878 |
| Raymond French | Other | — | 4 | ~1936 |
| Mary French | Other | — | 26 | ~1914 |
| Roy French | Other | — | 32 | ~1908 |
| Mary Montgomery | Spouse | — | 62 | ~1878 |
Census Appearances
1920
Philadelphia, Pennsylvania
Spouse, age 38
Philadelphia, Pennsylvania · implied b. ~1882 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Montgomery |
| Given Name | May E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Ireland |
| Year of Immigration | 1891 |
| Naturalization Status | Naturalized |
| Father's Birthplace | England |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1930
Philadelphia, Pennsylvania
Other, age 51
Philadelphia, Pennsylvania · implied b. ~1879 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Montgomery |
| Given Name | Mary |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1890 |
| Age at First Marriage | 21 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read/Write | Yes |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1940
Philadelphia-County, Pennsylvania
Spouse, age 62
Philadelphia-County, Pennsylvania · implied b. ~1878 — 7 household members
| Surname | Montgomery |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 62 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | Philadelphia |
| 1935 Residence (County) | Philadelphia |
| Naturalization Status | Naturalized |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
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 Montgomery across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Montgomery
Spouse · 1940 · age 62 · b. ~1878 · Pennsylvania
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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
33 people indexed on this census page (nara:1940:m-t0627-03718-00534)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Edward Montgomery | 62 | Head | Brakeman | Penna. |
| 42 | Mary Montgomery THIS PERSON | 62 | Wife | — | Ireland |
| 43 | Sarah Montgomery | 32 | Daughter | — | Penna. |
| 44 | Anna Montgomery | 31 | Daughter | — | Penna. |
| 45 | Mary French | 26 | Lodger | Stenographer | Penna. |
| 46 | Roy French | 32 | Lodger | Beautician | Arkansas |
| 47 | Raymond French | 4 | Lodger | — | Penna. |
| 48 | Alice Rader | 42 | Head | — | New Jersey |
| 49 | Andrew Rader | 42 | Husband | Painter | Maryland |
| 50 | Albert Rader | 19 | Son | New Worker | Penna. |
| 51 | Jane Tobin | 29 | Head | Waitress | Penna. |
| 52 | Gertrude Mcgrathy | 24 | Head | — | Penna. |
| 53 | John Mcgrathy | 29 | Husband | Mechanic | Penna. |
| 54 | Eli Forman | 44 | Head | Owner | Russia |
| 55 | Anna Forman | 47 | Wife | — | Russia |
| 56 | Beatrice Forman | 14 | Daughter | — | Penna. |
| 57 | Healy Johnson | 53 | Head | Contractor | Kentucky |
| 58 | Margaret Johnson | 53 | Wife | — | Wisconsin |
| 59 | Margaret Johnson | 18 | Daughter | New Worker | Illinois |
| 60 | Aida Justice | 70 | Head | — | Penna. |
| 61 | Marguerite Justice | 43 | Daughter | — | Penna. |
| 62 | Charles Huff | 50 | Head | Broker | Penna. |
| 63 | Elsie Huff | 50 | Wife | — | Germany |
| 65 | Samuel O. Gerhart | 67 | Head | Salesman | Penna. |
| 66 | Caroline Gerhart | 66 | Wife | Saleswoman | Penna. |
| 67 | Samuel, Jr. Gerhart | 38 | Son | Manager Office | Penna. |
| 68 | Edna M. Gerhart | 28 | Daughter | — | Penna. |
| 69 | Carl Spruker | 35 | Head | Fireman | Penna. |
| 70 | Helen Spruker | 33 | Wife | — | Penna. |
| 71 | Theresa Spruker | 2 | Daughter | — | Penna. |
| 72 | Marie Spruker | 0 | Daughter | — | Penna. |
| 73 | William Andrews | 36 | Head | Installation | Massachusetts |
| 74 | Ida Hessley | 50 | Lodger | — | New York |
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)