MM
Margaret Mcgrath — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Philadelphia, Pennsylvania
Our Model Tree links this Margaret Mcgrath across the 1920, 1930 and 1940 US Censuses in Philadelphia, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1875), then head of a 3-person household.
Age 45
b. ~1875
Female
Head
Born: Ireland
Widowed
1920 Census Record Details
| Census Year | 1920 |
| Location | Philadelphia, Pennsylvania |
| Surname | McGrath |
| Given Name | Margaret |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 45 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Irish |
| Home Free/Mortgaged | R |
| Birth Country | Ireland |
| Year of Naturalization | 1889 |
| Birthplace (normalized) | ireland |
| Township / Ward | City Of Philadelphia |
| Est. Birth Year | ~1875 |
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 1920 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Mary Mcgrath | Daughter | — | 22 | ~1898 |
| Margaret Mcgrath | Head | — | 45 | ~1875 |
| Agnes Mcgrath | Daughter | — | 20 | ~1900 |
Census Appearances
1920
Philadelphia, Pennsylvania
Head, age 45
Philadelphia, Pennsylvania · implied b. ~1875 — 3 household members
| Surname | McGrath |
| Given Name | Margaret |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 45 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Irish |
| Home Free/Mortgaged | R |
| Birth Country | Ireland |
| Year of Naturalization | 1889 |
| Birthplace (normalized) | ireland |
1930
Philadelphia, Pennsylvania
Other, age 55
Philadelphia, Pennsylvania · implied b. ~1875 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mc Grath |
| Given Name | Margaret |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1890 |
| Age at First Marriage | 27 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1940
Philadelphia-County, Pennsylvania
Head, age 67
Philadelphia-County, Pennsylvania · implied b. ~1873 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McGrath |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 67 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| 1935 Residence (City) | No Farms |
| 1935 Residence (County) | Phila |
| Naturalization Status | Naturalized |
| Highest Grade | No 4 |
| 1935 Residence | Same House |
| 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 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Margaret Mcgrath
Head · 1920 · age 45 · b. ~1875 · Pennsylvania
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1920 US Federal Census — Philadelphia, Pennsylvania
Open full size
1920 US Federal Census — Philadelphia, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu1622unit:0686)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Paul Mayer | 54 | Head | Meat Cutter | Russia |
| 2 | Barber Mayer | 43 | Wife | — | Russia |
| 3 | Benjamin Mayer | 22 | Son | Meat Cutter | Russia |
| 4 | Hannah Mayer | 20 | Daughter | Operator | Russia |
| 5 | Eva Mayer | 14 | Daughter | — | Russia |
| 6 | Hanna Mayer | 19 | Daughter | — | Russia |
| 7 | James Wilson | 35 | Head | Teacher | Pennsylvania |
| 8 | Rachael Wilson | 37 | Wife | — | New York |
| 9 | James Wilson | 16 | Son | — | Pennsylvania |
| 10 | David Wilson | 15 | Son | Runner | Pennsylvania |
| 11 | Florence Wilson | 11 | Daughter | — | Pennsylvania |
| 12 | Robert Wilson | 1 | Son | — | Pennsylvania |
| 13 | Elizabeth Wilson | 5 | Daughter | — | Pennsylvania |
| 14 | James Entwistle | 30 | Boarder | — | Pennsylvania |
| 15 | Conrad Luther | 41 | Head | Seaman | England |
| 16 | Ralph Luther | 15 | Son | — | Pennsylvania |
| 17 | Louise Luther | 11 | Daughter | — | Pennsylvania |
| 18 | Arnold Luther | 9 | Son | — | Pennsylvania |
| 19 | Mary Stephens | 50 | Mother | — | England |
| 20 | Alexander Peterson | 30 | Head | Weaver | Ireland |
| 21 | Anna Peterson | 30 | Wife | — | Ireland |
| 22 | Raymond Peterson | 5 | Son | — | Pennsylvania |
| 23 | Harry Linker | 25 | Head | Weaver | Pennsylvania |
| 24 | Abigail Linker | 22 | Wife | — | Pennsylvania |
| 25 | John Altmeier | 46 | Head | Weaver | Pennsylvania |
| 26 | Catherine Altmeier | 72 | Mother | Spinner | Pennsylvania |
| 27 | Wallace Anderson | 44 | Head | — | Pennsylvania |
| 28 | James Anderson | 20 | Son | — | Pennsylvania |
| 29 | Agnes Anderson | 65 | Mother | — | Pennsylvania |
| 30 | Elizabeth Wood | 40 | Head | — | Ireland |
| 31 | Ellen Miller | 50 | Head | Winder | Ireland |
| 32 | Martha Ross | 60 | Head | — | Ireland |
| 33 | Patrick Gillespie | 21 | Head | Weaver | Pennsylvania |
| 34 | Margaret Gillespie | 15 | Wife | — | Pennsylvania |
| 35 | Margaret Mcgrath THIS PERSON | 45 | Head | — | Ireland |
| 36 | Mary Mcgrath | 22 | Daughter | — | Pennsylvania |
| 37 | Agnes Mcgrath | 20 | Daughter | Typist | Pennsylvania |
| 38 | John J Lowery | 74 | Head | Typist | Pennsylvania |
| 39 | Sadie E Neumer | 20 | Cousin | — | Pennsylvania |
| 40 | John F Inder | 62 | Head | — | Maryland |
| 41 | Florence Inder | 55 | Wife | — | Pennsylvania |
| 42 | Mary Collins | 63 | Head | Winder | England |
| 43 | Jacob Krazer | 40 | Roomer | — | Pennsylvania |
| 44 | Bessie Laird | 55 | Head | Washerwoman | United States |
| 45 | Mary E Krazer | 55 | Sister | Washerwoman | United States |
| 46 | Joseph Kelly | 40 | Head | Painter | Pennsylvania |
| 47 | Anna C Kelly | 35 | Wife | — | Delaware |
| 48 | Mary A Kelly | 5 | Daughter | — | Pennsylvania |
| 49 | Joseph P Kelly | 3 | Son | — | Pennsylvania |
| 50 | Antonio Tozecki | 34 | Head | Weaver | Poland |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)