MD
Mary Donnelly — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Philadelphia, Pennsylvania
Our Model Tree links this Mary Donnelly across the 1900, 1910 and 1920 US Censuses in Philadelphia, Pennsylvania (XGBoost, ~Confirmed) — first a spouse (b.~1870), then head of a 10-person household.
Age 50
b. ~1870
Female
Spouse
Born: Ireland
Married
1920 Census Record Details
| Census Year | 1920 |
| Location | Philadelphia, Pennsylvania |
| Surname | Donnelly |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Ireland |
| Year of Immigration | 1888 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth Country | Ireland |
| Year of Naturalization | 1890 |
| Birthplace (normalized) | ireland |
| Township / Ward | Philadelphia City |
| Est. Birth Year | ~1870 |
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.
10 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Helen Donnelly | Daughter | — | 19 | ~1901 |
| Florence Donnelly | Daughter | — | 12 | ~1908 |
| Gertrude Donnelly | Daughter | — | 13 | ~1907 |
| Kathryn Donnelly | Daughter | — | 17 | ~1903 |
| James Donnelly | Head | — | 55 | ~1865 |
| John Donnelly | Son | — | 25 | ~1895 |
| Leo Donnelly | Son | — | 17 | ~1903 |
| Thomas Donnelly | Son | — | 22 | ~1898 |
| James Donnelly | Son | — | 28 | ~1892 |
| Mary Donnelly | Spouse | — | 50 | ~1870 |
Census Appearances
1900
Philadelphia, Pennsylvania
Spouse, age 30
Philadelphia, Pennsylvania · implied b. ~1870 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Donnelly |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Ireland |
| Birth Month | May |
| Birth Year | 1870 |
| Year of Immigration | 1874 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1910
Philadelphia, Pennsylvania
Spouse, age 40
Philadelphia, Pennsylvania · implied b. ~1870
●
Primary link
· ~Confirmed · 1 source
XGBoost
| Surname | Donnelly |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Ireland |
| Years Married | 14 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | none |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1920
Philadelphia, Pennsylvania
Spouse, age 50
Philadelphia, Pennsylvania · implied b. ~1870 — 10 household members
| Surname | Donnelly |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Ireland |
| Year of Immigration | 1888 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth Country | Ireland |
| Year of Naturalization | 1890 |
| 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 Mary Donnelly across 3 US Census years (1900, 1910 and 1920) in Philadelphia, Pennsylvania, using XGBoost record linkage.
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This person
Anchor record
Mary Donnelly
Spouse · 1920 · age 50 · b. ~1870 · Pennsylvania
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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:1920:14thcensusofpopu1645unit:0562)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Walter D Herrick | 49 | Head | Clerk | Pennsylvania |
| 52 | Gertrude Herrick | 55 | Wife | — | Pennsylvania |
| 53 | William Herrick | 22 | Son | Clerk | Pennsylvania |
| 54 | Esther Herrick | 19 | Daughter | Typewriter | Pennsylvania |
| 55 | Whitman Sophia Herrick | 83 | Mother in law | — | Pennsylvania |
| 56 | James S Johnson | 61 | Head | Inspector | Delaware |
| 57 | Abigail Johnson | 44 | Wife | — | Delaware |
| 58 | James Johnson | 21 | Son | Fireman | Pennsylvania |
| 59 | Helen Johnson | 18 | Daughter | — | Pennsylvania |
| 60 | Russell Barr | 32 | Head | Salesman | Delaware |
| 61 | Alta Barr | 30 | Wife | Saleslady | Delaware |
| 62 | James Donnelly | 55 | Head | Brakeman | Ireland |
| 63 | Mary Donnelly THIS PERSON | 50 | Wife | — | Ireland |
| 64 | James J Donnelly | 28 | Son | Painter | Pennsylvania |
| 65 | John J Donnelly | 25 | Son | Brakeman | Pennsylvania |
| 66 | Thomas F Donnelly | 22 | Son | Helper | Pennsylvania |
| 67 | Helen Donnelly | 19 | Daughter | Reamer | Pennsylvania |
| 68 | Kathryn Donnelly | 17 | Daughter | — | Pennsylvania |
| 69 | Leo J Donnelly | 17 | Son | — | Pennsylvania |
| 70 | Gertrude Donnelly | 13 | Daughter | — | Pennsylvania |
| 71 | Florence Donnelly | 12 | Daughter | — | Pennsylvania |
| 72 | Walter C Lair | 22 | Head | Brakeman | Pennsylvania |
| 73 | Margaret Lair | 22 | Daughter | — | Pennsylvania |
| 74 | Anthony Lair | 1 | Son | — | Pennsylvania |
| 75 | Mary Lair | 0 | Grandchild | — | Pennsylvania |
| 76 | William Reinholt | 41 | Head | Electro Plater | Pennsylvania |
| 77 | Gertrude M Reinholt | 40 | Wife | — | Pennsylvania |
| 78 | Elmer Reinholt | 21 | Son | Pressman | Pennsylvania |
| 79 | Florence Reinholt | 19 | Daughter | Operator | Pennsylvania |
| 80 | Gertrude E Reinholt | 15 | Daughter | Binder | Pennsylvania |
| 81 | Elsie S Reinholt | 12 | Daughter | — | Pennsylvania |
| 82 | Emily A Reinholt | 9 | Daughter | — | Pennsylvania |
| 83 | Patrick Mcgoldrick | 50 | Head | Watchman | Ireland |
| 84 | Kathryn E Mcgoldrick | 50 | Wife | — | Ireland |
| 85 | James J Mcgoldrick | 21 | Son | Metal Plater | Pennsylvania |
| 86 | Bernard E Mcgoldrick | 19 | Son | Bolter | Pennsylvania |
| 87 | Margaret Mcgoldrick | 17 | Daughter | Stenographer | Pennsylvania |
| 88 | Daniel Mcgoldrick | 9 | Son | — | Pennsylvania |
| 89 | Herman Strong | 40 | Head | Tailor | Russia |
| 90 | Bella Strong | 38 | Wife | — | Russia |
| 91 | Agatha Strong | 12 | Daughter | — | Pennsylvania |
| 92 | Charles Strong | 9 | Son | — | Pennsylvania |
| 93 | Sylvia Strong | 5 | Daughter | — | Pennsylvania |
| 94 | Albert Strong | 2 | Son | — | Pennsylvania |
| 95 | John Wells | 58 | Head | Paperhanger | New York |
| 96 | Sarah Wells | 58 | Wife | — | New York |
| 97 | Jacob A Ulmer | 49 | Head | Foreman | Germany |
| 98 | Emma Ulmer | 47 | Wife | — | Pennsylvania |
| 99 | Margaret Ulmer | 24 | Daughter | Timekeeper | Pennsylvania |
| 100 | C. Ellis Ulmer | 21 | Son | — | Pennsylvania |
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)