MF
Mary Fitzpatrick — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Philadelphia, Pennsylvania
Our Model Tree links this Mary Fitzpatrick across the 1910 and 1920 US Censuses in Philadelphia, Pennsylvania (XGBoost, ~Confirmed) — first a daughter (b.~1910), then head of a 11-person household.
Age 10
b. ~1910
Female
Daughter
Born: Pennsylvania
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Philadelphia, Pennsylvania |
| Surname | Fitzpatrick |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Philadelphia City |
| Est. Birth Year | ~1910 |
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.
11 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Katherine Fitzpatrick | Daughter | — | 12 | ~1908 |
| Mary Fitzpatrick | Daughter | — | 10 | ~1910 |
| Agnes Fitzpatrick | Daughter | — | 5 | ~1915 |
| William Fitzpatrick | Head | — | 48 | ~1872 |
| Patrick Fitzpatrick | Other | — | 54 | ~1866 |
| Patrick Fitzpatrick | Other | — | 83 | ~1837 |
| William Fitzpatrick | Son | — | 3 | ~1917 |
| Joseph Fitzpatrick | Son | — | 15 | ~1905 |
| James Fitzpatrick | Son | — | 1 | ~1919 |
| Margaret Fitzpatrick | Son | — | 7 | ~1913 |
| Mary Fitzpatrick | Spouse | — | 37 | ~1883 |
Census Appearances
1910
Philadelphia, Pennsylvania
Daughter, age 1
Philadelphia, Pennsylvania · implied b. ~1909 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Fitzpatrick |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1920
Philadelphia, Pennsylvania
Daughter, age 10
Philadelphia, Pennsylvania · implied b. ~1910 — 11 household members
| Surname | Fitzpatrick |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| 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 Mary Fitzpatrick across 2 US Census years (1910 and 1920) in Philadelphia, Pennsylvania, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Fitzpatrick
Daughter · 1920 · age 10 · b. ~1910 · Pennsylvania
★ You are viewing this record
Sibling
Margaret Fitzpatrick
Sibling · 1920 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Agnes Fitzpatrick
Sibling · 1920 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Fitzpatrick
Sibling · 1920 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Fitzpatrick
Sibling · 1920 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Fitzpatrick
Sibling · 1920 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Katherine Fitzpatrick
Sibling · 1920 · age 12
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:1920:14thcensusofpopu1641unit:0047)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | James J A Dooley | 14 | Son | Sweeper | Pennsylvania |
| 52 | Anna M Dooley | 11 | Daughter | — | Pennsylvania |
| 53 | Charles J Dooley | 9 | Son | — | Pennsylvania |
| 54 | Marie E Dooley | 6 | Daughter | — | Pennsylvania |
| 55 | Gertrude Dooley | 2 | Daughter | — | Pennsylvania |
| 56 | Charles B Twigg | 32 | Head | Machinist | New York |
| 57 | Josephine L Twigg | 30 | Wife | — | Connecticut |
| 58 | Helen Twigg | 10 | Daughter | — | New York |
| 59 | Charles Twigg | 8 | Son | — | New York |
| 60 | Harry B Twigg | 6 | Son | — | New York |
| 61 | Josephine L Twigg | 4 | Daughter | — | New York |
| 62 | John P Twigg | 2 | Son | — | New York |
| 63 | Kathryn S Twigg | 1 | Daughter | — | Pennsylvania |
| 64 | Ellen E Twigg | 57 | Mother | — | New York |
| 65 | Mary Marshall | 43 | Head | — | Pennsylvania |
| 66 | Katherine S Marshall | 18 | Daughter | Saleswoman | Pennsylvania |
| 67 | Charles Marshall | 13 | Son | — | Pennsylvania |
| 68 | Charles Barker | 42 | Boarder | Bolter | Pennsylvania |
| 69 | George W Paullin | 56 | Head | Steam Fitter | Pennsylvania |
| 70 | Anna Paullin | 53 | Wife | — | Pennsylvania |
| 71 | Anna E Paullin | 12 | Daughter | — | Pennsylvania |
| 72 | Alice Paullin | 8 | Daughter | — | Pennsylvania |
| 73 | Ida Paullin | 1 | Daughter | — | Pennsylvania |
| 74 | William Fitzpatrick | 48 | Head | Laborer | Ireland |
| 75 | Mary Fitzpatrick | 37 | Wife | — | Ireland |
| 76 | Joseph Fitzpatrick | 15 | Son | — | Pennsylvania |
| 77 | Katherine Fitzpatrick | 12 | Daughter | — | Pennsylvania |
| 78 | Mary Fitzpatrick THIS PERSON | 10 | Daughter | — | Pennsylvania |
| 79 | Margaret Fitzpatrick | 7 | Son | — | Pennsylvania |
| 80 | Agnes Fitzpatrick | 5 | Daughter | — | Pennsylvania |
| 81 | William Fitzpatrick | 3 | Son | — | Pennsylvania |
| 82 | James Fitzpatrick | 1 | Son | — | Pennsylvania |
| 83 | Patrick Fitzpatrick | 83 | Father | — | Ireland |
| 84 | Patrick Jr Fitzpatrick | 54 | Brother | Laborer | Ireland |
| 85 | John H Celine | 56 | Head | Teamster | Pennsylvania |
| 86 | Florence Celine | 45 | Wife | — | Pennsylvania |
| 87 | Samuel Celine | 24 | Son | Teamster | Pennsylvania |
| 88 | Raymond C Celine | 20 | Son | Teamster | Pennsylvania |
| 89 | William Celine | 14 | Son | — | Pennsylvania |
| 90 | John Celine | 11 | Son | — | Pennsylvania |
| 91 | Katie G Glassner | 22 | Daughter | — | Pennsylvania |
| 92 | Florence Glassner | 5 | Grand Daughter | — | Pennsylvania |
| 93 | Arthur Glassner | 1 | Grand Son | — | Pennsylvania |
| 94 | Edward O'Brien | 56 | Head | Storekeeper | Scotland |
| 95 | Margaret O'Brien | 43 | Wife | — | Maryland |
| 96 | Edward Jr O'Brien | 19 | Son | Pipe Fitter | Maryland |
| 97 | Marguerite O'Brien | 17 | Daughter | Type Setter | Maryland |
| 98 | Katherine O'Brien | 15 | Daughter | — | Maryland |
| 99 | Anna O'Brien | 12 | Daughter | — | Maryland |
| 100 | Madaline O'Brien | 10 | Daughter | — | West Virginia |
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)