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Margaret Mcgrath — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Philadelphia-County, Pennsylvania
Our Model Tree links this Margaret Mcgrath across the 1910, 1920, 1930 and 1940 US Censuses in Philadelphia-County, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1867), then head of a 3-person household.
Age 73
b. ~1867
Female
Head
Born: Ireland
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Philadelphia-County, Pennsylvania |
| Surname | McGrath |
| Given Name | Margaret |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 73 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| 1935 Residence (City) | Phila |
| 1935 Residence (County) | Phila |
| Naturalization Status | Naturalized |
| Additional Details | |
| Highest Grade | No 3 |
| 1935 Residence | Same place |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Township / Ward | Phila |
| Est. Birth Year | ~1867 |
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 Margaret | Age | Birth yr |
|---|---|---|---|---|
| Margaret Mcgrath | Other | — | 75 | ~1865 |
| Margaret Mcgrath | Head | — | 73 | ~1867 |
| Elsie Mcgrath | Daughter | — | 30 | ~1910 |
Census Appearances
1910
Philadelphia, Pennsylvania
Head, age 40
Philadelphia, Pennsylvania · implied b. ~1870 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McGrath |
| Given Name | Margaret |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Children Born | 9 |
| Children Living | 8 |
| Year of Immigration | 1888 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1920
Philadelphia, Pennsylvania
Head, age 50
Philadelphia, Pennsylvania · implied b. ~1870 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McGrath |
| Given Name | Margaret |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Year of Immigration | 1888 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Birth Country | Ireland |
| Year of Naturalization | 1890 |
| Birthplace (normalized) | ireland |
1930
Philadelphia, Pennsylvania
Head, age 60
Philadelphia, Pennsylvania · implied b. ~1870 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McGrath |
| Given Name | Margaret |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 60 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1886 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Home Value / Rent | 40 |
| Radio Set | R |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1940
Philadelphia-County, Pennsylvania
Head, age 73
Philadelphia-County, Pennsylvania · implied b. ~1867 — 3 household members
| Surname | McGrath |
| Given Name | Margaret |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 73 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| 1935 Residence (City) | Phila |
| 1935 Residence (County) | Phila |
| Naturalization Status | Naturalized |
| Highest Grade | No 3 |
| 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 Margaret Mcgrath across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Margaret Mcgrath
Head · 1940 · age 73 · b. ~1867 · 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
37 people indexed on this census page (nara:1940:m-t0627-03698-00806)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Howard Robinson | 52 | Head | Laborer | Penna |
| 42 | Anna Robinson | 51 | Wife | — | So. Carolina |
| 43 | Annie Williams | 25 | Head | Maid | So. Carolina |
| 44 | Dorothy Williams | 9 | Daughter | — | So. Carolina |
| 45 | Isaac Williams | 46 | Head | Mechanic | So. Carolina |
| 46 | Jessie Williams | 20 | Daughter | Maid | New Jersey |
| 47 | Irene Williams | 10 | Daughter | — | New Jersey |
| 48 | Homer Ferguson | 35 | Head | Laborer | So. Carolina |
| 49 | Amanda Ferguson | 31 | Wife | — | So. Carolina |
| 50 | Bessie Hagens | 16 | Sister | — | So. Carolina |
| 51 | James Barnar | 23 | Head | Laborer | So. Carolina |
| 52 | Maddie Barnar | 23 | Wife | — | So. Carolina |
| 53 | Ruby Barnar | 5 | Daughter | — | Virginia |
| 54 | Leroy Barnar | 3 | Daughter | — | Virginia |
| 55 | James Barnar | 2 | Son | — | Virginia |
| 56 | Child | None | — | — | — |
| 57 | Margaret Mcgrath THIS PERSON | 73 | Head | — | Ireland |
| 58 | Elsie Mcgrath | 30 | Daughter | Folder | Penna |
| 59 | Margaret Mcgrath | 75 | Sister | — | Ireland |
| 60 | Frank Lynely | 46 | Head | Mechanic | Penna |
| 61 | Helen Lynely | 46 | Wife | — | Penna |
| 62 | Jack Lynely | 24 | Son | — | Penna |
| 63 | Frank Lynely | 27 | Son | Mechanic | Penna |
| 64 | Robert Jones | 45 | Head | Fireman | Georgia |
| 65 | Annie Jones | 31 | Sister | — | Georgia |
| 66 | Henry Smith | 51 | Lodger | — | — |
| 67 | Randolph Thompson | 50 | Lodger | — | — |
| 68 | Joseph Wimblely | 38 | Head | Laborer | Georgia |
| 69 | Helen Wimblely | 36 | Wife | — | New Jersey |
| 71 | Thomas Geary | 51 | Head | Laborer | So. Carolina |
| 72 | Alice Geary | 45 | Wife | Presser | So. Carolina |
| 73 | James Geary | 63 | Father | Laborer | So. Carolina |
| 74 | Samie Mcbride | 31 | Head | Helper | Maryland |
| 75 | Idie Mcbride | 35 | Wife | — | Conn |
| 76 | Gladys Rollins | 32 | Head | Waitress | Penna |
| 77 | Geneva Sweeney | 35 | Head | — | Penna |
| 78 | Charles Payton | 10 | Son | — | 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)