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Mary Mcclain — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Philadelphia-County, Pennsylvania
Our Model Tree links this Mary Mcclain across the 1930 and 1940 US Censuses in Philadelphia-County, Pennsylvania (XGBoost, ~Confirmed) — first a spouse (b.~1891), then head of a 12-person household.
Age 49
b. ~1891
Female
Spouse
Born: Penna.
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Philadelphia-County, Pennsylvania |
| Surname | McClain |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Penna. |
| 1935 Residence (City) | Philadelphia |
| 1935 Residence (County) | Philadelphia |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | penna |
| Township / Ward | Philadelphia |
| Est. Birth Year | ~1891 |
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.
12 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Edward Cantwell | Other | — | 25 | ~1915 |
| John Mcclain | Son | — | 17 | ~1923 |
| Mary Cantwell | Other | — | 23 | ~1917 |
| Eugene Mcclain | Son | — | 11 | ~1929 |
| Patricia Mcclain | Daughter | — | 9 | ~1931 |
| James Mcclain | Son | — | 14 | ~1926 |
| Mary Mcclain | Spouse | — | 49 | ~1891 |
| Dorothy Mcclain | Daughter | — | 12 | ~1928 |
| Thomas Mcclain | Son | — | 7 | ~1933 |
| John Mcclain | Head | — | 44 | ~1896 |
| Francis Mcclain | Son | — | 16 | ~1924 |
| Joseph Mcclain | Son | — | 10 | ~1930 |
Census Appearances
1930
Philadelphia, Pennsylvania
Spouse, age 39
Philadelphia, Pennsylvania · implied b. ~1891 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McClean |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Penna |
| Age at First Marriage | 25 |
| Father's Birthplace | Penna |
| Mother's Birthplace | Penna |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | penna |
1940
Philadelphia-County, Pennsylvania
Spouse, age 49
Philadelphia-County, Pennsylvania · implied b. ~1891 — 12 household members
| Surname | McClain |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Penna. |
| 1935 Residence (City) | Philadelphia |
| 1935 Residence (County) | Philadelphia |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | penna |
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 Mcclain across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Mcclain
Spouse · 1940 · age 49 · b. ~1891 · 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
39 people indexed on this census page (nara:1940:m-t0627-03750-00321)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Roland Evans | 41 | Head | Laborer | Delaware |
| 42 | Anna Evans | 40 | Wife | Presser | Delaware |
| 43 | Ruth Smith | 29 | Lodger | Presser | Maryland |
| 44 | Ann Brinkley | 72 | Head | — | Delaware |
| 45 | Hanna Kelly | 42 | Head | Maid | Austria |
| 46 | Anna Doyle | 55 | Lodger | Maid | Penna. |
| 47 | John Parker | 64 | Lodger | Chauffeur | Penna. |
| 48 | Cecilia Kelly | 12 | Daughter | — | Penna. |
| 49 | John F. Conway | 50 | Head | P.W.A. Teacher | Colorado |
| 50 | Etta Kirkpatrick | 52 | Head | Maid | Penna. |
| 51 | Elizabeth North | 76 | Head | — | Penna. |
| 53 | Martin J. Gorman | 53 | Head | Odd Jobs | Eire |
| 54 | Mary Gorman | 52 | Wife | — | Eire |
| 55 | Catherine Gorman | 23 | Daughter | Machine Operator | Penna. |
| 56 | John Gorman | 21 | Son | Houseman | Penna. |
| 57 | Elizabeth Gorman | 17 | Daughter | — | Penna. |
| 58 | James Gorman | 11 | Son | — | Penna. |
| 59 | James Lynch | 42 | Brother-in-law | Helper | Eire |
| 60 | Mary Mcnally | 80 | Head | — | Eire |
| 61 | Joseph Mcnally | 37 | Son | — | Penna. |
| 62 | John P. Mcclain | 44 | Head | Guard | Penna. |
| 63 | Mary Mcclain THIS PERSON | 49 | Wife | — | Penna. |
| 64 | John J. Mcclain | 17 | Son | — | Penna. |
| 65 | Francis X. Mcclain | 16 | Son | — | Penna. |
| 66 | James D. Mcclain | 14 | Son | — | Penna. |
| 67 | Dorothy A. Mcclain | 12 | Daughter | — | Penna. |
| 68 | Eugene J. Mcclain | 11 | Son | — | Penna. |
| 69 | Joseph F. Mcclain | 10 | Son | — | Penna. |
| 70 | Patricia Mcclain | 9 | Daughter | — | Penna. |
| 71 | Thomas E. Mcclain | 7 | Son | — | Penna. |
| 72 | Edward Cantwell | 25 | Step-son | Cutter | Penna. |
| 73 | Mary D. Cantwell | 23 | Step-daughter | Clerk | Penna. |
| 74 | John O'Brien | 38 | Head | Motorman | Penna. |
| 75 | Rose O'Brien | 36 | Wife | — | Penna. |
| 76 | Rose O'Brien | 12 | Daughter | — | Penna. |
| 77 | Mary O'Brien | 10 | Daughter | — | Penna. |
| 78 | John O'Brien | 8 | Son | — | Penna. |
| 79 | William O'Brien | 5 | Son | — | Penna. |
| 80 | Louise O'Brien | 0 | Daughter | — | Penna. |
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)