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Margaret Mcdermott — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Philadelphia, Pennsylvania
Our Model Tree links this Margaret Mcdermott across the 1910 and 1920 US Censuses in Philadelphia, Pennsylvania (XGBoost, ~Confirmed) — first a daughter (b.~1905), then head of a 9-person household.
Age 15
b. ~1905
Female
Daughter
Born: Pennsylvania
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Philadelphia, Pennsylvania |
| Surname | McDermott |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Occupation | Stock Girl |
| Industry | Department Store |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Stock Girl |
| Township / Ward | Philadelphia |
| Est. Birth Year | ~1905 |
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.
9 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Helen Mcdermott | Daughter | — | 7 | ~1913 |
| Frank Mcdermott | Son | — | 19 | ~1901 |
| James Mcdermott | Son | — | 11 | ~1909 |
| Frank Mcdermott | Head | — | 42 | ~1878 |
| Thomas Mcdermott | Son | — | 5 | ~1915 |
| Victoria Mcdermott | Daughter | — | 13 | ~1907 |
| Anna Mcdermott | Daughter | — | 9 | ~1911 |
| Margaret Mcdermott | Daughter | — | 15 | ~1905 |
| Emma Mcdermott | Spouse | — | 42 | ~1878 |
Census Appearances
1910
Philadelphia, Pennsylvania
Daughter, age 5
Philadelphia, Pennsylvania · implied b. ~1905 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McDermott |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1920
Philadelphia, Pennsylvania
Daughter, age 15
Philadelphia, Pennsylvania · implied b. ~1905 — 9 household members
| Surname | McDermott |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Stock Girl |
| Industry | Department Store |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | 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 Mcdermott across 2 US Census years (1910 and 1920) in Philadelphia, Pennsylvania, using XGBoost record linkage.
Show:
This person
Anchor record
Margaret Mcdermott
Daughter · 1920 · age 15 · b. ~1905 · Pennsylvania
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Sibling
Thomas Mcdermott
Sibling · 1920 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Mcdermott
Sibling · 1920 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frank Mcdermott
Sibling · 1920 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anna Mcdermott
Sibling · 1920 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Mcdermott
Sibling · 1920 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Victoria Mcdermott
Sibling · 1920 · age 13
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
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:1920:14thcensusofpopu1618unit:1133)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Mary Morris | 7 | Head | — | Pennsylvania |
| 52 | Catherine Morris | 4 | Daughter | — | Pennsylvania |
| 53 | Ellen Bower | 41 | Head | — | Pennsylvania |
| 54 | Mary Bower | 16 | Daughter | Bookkeeper | Pennsylvania |
| 55 | Thomas Bower | 14 | Son | Brakeman | Pennsylvania |
| 56 | Catherine Bower | 11 | Daughter | Stock Girl | Pennsylvania |
| 57 | Margaret Bower | 10 | Daughter | — | Pennsylvania |
| 58 | Agnes Bower | 1 | Daughter | — | Pennsylvania |
| 59 | George Brown | 37 | Head | Assistant Foreman | England |
| 60 | Florence Brown | 30 | Wife | — | Pennsylvania |
| 61 | Clara Brown | 11 | Daughter | — | Pennsylvania |
| 62 | James Brown | 8 | Son | — | Pennsylvania |
| 63 | Helen Brown | 5 | Daughter | — | Pennsylvania |
| 64 | George Brown | 3 | Son | — | Pennsylvania |
| 65 | Frank Mcdermott | 42 | Head | Iron Worker | Pennsylvania |
| 66 | Emma Mcdermott | 42 | Wife | — | Pennsylvania |
| 67 | Frank Mcdermott | 19 | Son | Iron Worker | Pennsylvania |
| 68 | Margaret Mcdermott THIS PERSON | 15 | Daughter | Stock Girl | Pennsylvania |
| 69 | Victoria Mcdermott | 13 | Daughter | — | Pennsylvania |
| 70 | James Mcdermott | 11 | Son | — | Pennsylvania |
| 71 | Anna Mcdermott | 9 | Daughter | — | Pennsylvania |
| 72 | Helen Mcdermott | 7 | Daughter | — | Pennsylvania |
| 73 | Thomas Mcdermott | 5 | Son | — | Pennsylvania |
| 74 | Michael Kelly | 47 | Head | Laborer | Ireland |
| 75 | Eunice Kelly | 38 | Wife | — | Ireland |
| 76 | Robert Kelly | 18 | Son | Express | Pennsylvania |
| 77 | Michael Kelly | 17 | Son | Helper | Pennsylvania |
| 78 | Edward Kelly | 11 | Son | — | Pennsylvania |
| 79 | Mary Kelly | 10 | Daughter | — | Pennsylvania |
| 80 | John Kelly | 4 | Son | — | Pennsylvania |
| 81 | George Dougherty | 55 | Head | Baker | Pennsylvania |
| 82 | Helen Dougherty | 26 | Daughter | Correspondent | Pennsylvania |
| 83 | Mary Dougherty | 19 | Daughter | — | Pennsylvania |
| 84 | James J. Dougherty | 14 | Son | — | Pennsylvania |
| 85 | John J. Dougherty | 11 | Son | — | Pennsylvania |
| 86 | Thomas Dougherty | 8 | Son | — | Pennsylvania |
| 87 | Daniel J. Almeida | 35 | Head | Ice Wagon | Pennsylvania |
| 88 | Mary M. Almeida | 34 | Wife | — | Pennsylvania |
| 89 | Joseph Almeida | 10 | Son | — | Pennsylvania |
| 90 | Mary Almeida | 6 | Daughter | — | Pennsylvania |
| 91 | John Almeida | 2 | Son | — | Pennsylvania |
| 92 | Catherine Clark | 80 | Aunt | — | Pennsylvania |
| 93 | Agnes M. Clark | 49 | Aunt | Finisher | Pennsylvania |
| 94 | Catherine Donnelly | 42 | Head | Finisher | Ireland |
| 95 | Thomas Donnelly | 24 | Son | Helper | Pennsylvania |
| 96 | Edward Donnelly | 21 | Son | Laborer | Pennsylvania |
| 97 | John Donnelly | 19 | Son | Packer | Pennsylvania |
| 98 | Charles Donnelly | 17 | Son | Operator | Pennsylvania |
| 99 | Mary Donnelly | 12 | Daughter | Packer | Pennsylvania |
| 100 | Joseph Petralia | 43 | Head | Laborer | Italy |
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)