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Margaret Mcgrath — 1930 US Census Record
Model Tree available1930 United States Federal Census · Philadelphia, Pennsylvania
Our Model Tree links this Margaret Mcgrath across the 1910, 1920 and 1930 US Censuses in Philadelphia, Pennsylvania (XGBoost, ~Confirmed), with identified parents William & William — first a daughter (b.~1902), then head of a 5-person household.
Age 28
b. ~1902
Female
Daughter
Born: Pennsylvania
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Philadelphia, Pennsylvania |
| Surname | McGrath |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Occupation | Secretary |
| Industry | Hardware |
| Class of Worker | 7X28 |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Secretary |
| Township / Ward | Philadelphia City |
| Est. Birth Year | ~1902 |
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.
5 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Genevieve Mcgrath | Daughter | — | 40 | ~1890 |
| Margaret Mcgrath | Daughter | — | 28 | ~1902 |
| Elizabeth Mcgrath | Daughter | — | 42 | ~1888 |
| Anna Mcgrath | Daughter | — | 36 | ~1894 |
| William Mcgrath | Head | — | 71 | ~1859 |
Census Appearances
1910
Philadelphia, Pennsylvania
Daughter, age 8
Philadelphia, Pennsylvania · implied b. ~1902
●
Primary link
· ~Confirmed · 1 source
XGBoost
| Surname | McGrath |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Pennsylvania |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1920
Philadelphia, Pennsylvania
Daughter, age 17
Philadelphia, Pennsylvania · implied b. ~1903 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McGrath |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Pennsylvania |
| Occupation | Stenographer |
| Industry | Construction Co. |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Philadelphia, Pennsylvania
Daughter, age 28
Philadelphia, Pennsylvania · implied b. ~1902 — 5 household members
| Surname | McGrath |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Pennsylvania |
| Occupation | Secretary |
| Industry | Hardware |
| Class of Worker | 7X28 |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 (1910, 1920 and 1930) in Philadelphia, Pennsylvania, using XGBoost record linkage. Identified parents: father William Mcgrath (~0.92 confidence) and father William Mcgrath (~0.92 confidence) and mother Mary Mcgrath (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Mcgrath
b. ~1853
Source father
● Household
· direct · ~0.92
Father
William Mcgrath
b. ~1859
Source father
● Household
· direct · ~0.92
Mother
Mary Mcgrath
b. ~1860
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Margaret Mcgrath
Daughter · 1930 · age 28 · b. ~1902 · Pennsylvania
★ You are viewing this record
Sibling
Anna Mcgrath
Sibling · 1930 · age 36
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elizabeth Mcgrath
Sibling · 1930 · age 42
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Genevieve Mcgrath
Sibling · 1930 · age 40
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Philadelphia, Pennsylvania
Open full size
1930 US Federal Census — Philadelphia, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1930:fifteenthcensus00reel2129:0472)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Margaret Deeney | 40 | Head | — | Pennsylvania |
| 52 | Edward J Deeney | 29 | Son | Stenographer | Pennsylvania |
| 53 | Edward J Deeney | 27 | Son | Clerk | Pennsylvania |
| 54 | Charles Deeney | 16 | Son | — | Pennsylvania |
| 55 | Hannah Mccloskey | 49 | Sister | Dressmaker | Irish Free State |
| 56 | James Deuber | 42 | Head | Mechanic | Northern Ireland |
| 57 | Helen Deuber | 54 | Wife | — | Irish Free State |
| 58 | Arthur Deuber | 26 | Son | Mechanic | Pennsylvania |
| 59 | Helen Deuber | 22 | Daughter | Clerk | Pennsylvania |
| 60 | Catherine Deuber | 20 | Daughter | Clerk | Pennsylvania |
| 61 | James Jr Deuber | 15 | Son | — | Pennsylvania |
| 62 | Patrick Blake | 45 | Head | Mechanic | Irish Free State |
| 63 | Mary Blake | 40 | Wife | — | England |
| 64 | Angela Blake | 16 | Daughter | — | Pennsylvania |
| 65 | Vincent Blake | 15 | Son | — | Pennsylvania |
| 66 | Patricia Blake | 13 | Daughter | — | Pennsylvania |
| 67 | Joseph Blake | 11 | Son | — | Pennsylvania |
| 68 | John Blake | 10 | Son | — | Pennsylvania |
| 69 | Elizabeth Blake | 8 | Daughter | — | Pennsylvania |
| 70 | Dorothy Blake | 6 | Daughter | — | Pennsylvania |
| 71 | Francis Blake | 5 | Son | — | Pennsylvania |
| 72 | Thomas Blake | 2 | Son | — | Pennsylvania |
| 73 | William Mcgrath | 71 | Head | — | Irish Free State |
| 74 | Elizabeth Mcgrath | 42 | Daughter | Buyer | Pennsylvania |
| 75 | Genevieve Mcgrath | 40 | Daughter | — | Pennsylvania |
| 76 | Anna Mcgrath | 36 | Daughter | Manager | Pennsylvania |
| 77 | Margaret Mcgrath THIS PERSON | 28 | Daughter | Secretary | Pennsylvania |
| 78 | Jacob Seiman | 34 | Head | Salesman | Rumania |
| 79 | Elizabeth Seiman | 33 | Wife | — | Russia |
| 80 | Elaine Seiman | 11 | Daughter | — | Pennsylvania |
| 81 | Herbert Seiman | 5 | Son | — | Pennsylvania |
| 82 | John Curran | 24 | Head | Patternmaker | Pennsylvania |
| 83 | Sylvia Curran | 22 | Wife | — | Pennsylvania |
| 84 | Russell Murray | 26 | Head | Operator | Delaware |
| 85 | Roberta Murray | 22 | Wife | — | Pennsylvania |
| 86 | George W Geyer | 49 | Head | Electrician | Pennsylvania |
| 87 | Helen S Geyer | 50 | Wife | — | New Jersey |
| 88 | Paul E Geyer | 19 | Son | Clerk | Pennsylvania |
| 89 | G. Edmund Geyer | 23 | Son | Engineer | Pennsylvania |
| 90 | Jacob Friedman | 38 | Head | Salesman | Austria |
| 91 | Tillie Friedman | 33 | Wife | — | Russia |
| 92 | Solman Friedman | 3 | Son | — | Pennsylvania |
| 93 | Abraham Zucker | 48 | Head | Salesman | Poland |
| 94 | Minnie Zucker | 48 | Wife | — | Poland |
| 95 | Eva Zucker | 20 | Daughter | Clerk | Pennsylvania |
| 96 | Bertha Zucker | 19 | Daughter | — | Pennsylvania |
| 97 | Mildred Zucker | 8 | Daughter | — | Pennsylvania |
| 98 | Mary Mccann | 68 | Head | — | Irish Free State |
| 99 | Mary M J Mccann | 39 | Daughter | Clerk | Pennsylvania |
| 100 | Catherine Mccann | 37 | Daughter | Clerk | Pennsylvania |
Pedigree Summary
Margaret + 3 siblings
Gen 1 · 3 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)