MD
Mary Donnelly — 1910 US Census Record
Linked across censuses1910 United States Federal Census · Essex, Massachusetts
Our Model Tree links this Mary Donnelly across the 1910 and 1920 US Censuses in Essex, Massachusetts (XGBoost, ~Confirmed) — first a daughter (b.~1906), then head of a 7-person household.
Age 4
b. ~1906
Female
Daughter
Born: Massachusetts
Single
1910 Census Record Details
| Census Year | 1910 |
| Location | Essex, Massachusetts |
| Surname | Donnelly |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | City Of Lynn |
| Est. Birth Year | ~1906 |
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.
7 people recorded at the same address in the 1910 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Donnelly | Daughter | — | 4 | ~1906 |
| Margaret Grace | Daughter | — | 11 | ~1899 |
| Michael Donnelly | Head | — | 20 | ~1890 |
| Daniel Grace | Son | — | 9 | ~1901 |
| John Donnelly | Son | — | 5 | ~1905 |
| Thomas Grace | Son | — | 14 | ~1896 |
| Mary Donnelly | Spouse | — | 40 | ~1870 |
Census Appearances
1910
Essex, Massachusetts
Daughter, age 4
Essex, Massachusetts · implied b. ~1906 — 7 household members
| Surname | Donnelly |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1920
Essex, Massachusetts
Daughter, age 14
Essex, Massachusetts · implied b. ~1906 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Donnelly |
| Given Name | Mildred M |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
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 2 US Census years (1910 and 1920) in Essex, Massachusetts, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Donnelly
Daughter · 1910 · age 4 · b. ~1906 · Massachusetts
★ You are viewing this record
Sibling
John Donnelly
Sibling · 1910 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Grace
Sibling · 1910 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Daniel Grace
Sibling · 1910 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Grace
Sibling · 1910 · age 14
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
1910 US Federal Census — Essex, Massachusetts
Open full size
1910 US Federal Census — Essex, Massachusetts
Page Contents
50 people indexed on this census page (ia:1910:13thcensus1910po585unit:1022)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Theresa N Keating | 37 | Head | Top Stitcher | Massachusetts |
| 52 | Francis Dureany | 40 | Head | Laborer | Ireland |
| 53 | Isabella Dureany | 42 | Wife | None | Ireland |
| 54 | James Dureany | 14 | Son | — | Massachusetts |
| 55 | Mary Dureany | 12 | Daughter | — | Massachusetts |
| 56 | Catherine Dureany | 10 | Daughter | — | Massachusetts |
| 57 | Isabella Dureany | 7 | Daughter | — | Massachusetts |
| 58 | Alice Dureany | 5 | Daughter | — | Massachusetts |
| 59 | Frank Dureany | 2 | Son | — | Massachusetts |
| 60 | Elizabeth Dureany | 0 | Daughter | — | Massachusetts |
| 61 | Richard Blake | 56 | Head | Laborer | Ireland |
| 62 | Mary J Blake | 37 | Wife | None | Ireland |
| 63 | William J Blake | 12 | Son | — | Massachusetts |
| 64 | Mary Blake | 11 | Daughter | — | Massachusetts |
| 65 | John Blake | 9 | Son | — | Massachusetts |
| 66 | Margaret Blake | 7 | Daughter | — | Massachusetts |
| 67 | Elizabeth Blake | 3 | Daughter | — | Massachusetts |
| 68 | Michael Relief | 29 | Head | Carpenter | Ireland |
| 69 | Emma Relief | 25 | Wife | None | Ireland |
| 70 | Christina Relief | 2 | Daughter | — | Massachusetts |
| 71 | Thomas J Relief | 1 | Son | — | Massachusetts |
| 72 | Charles Donachie | 40 | Head | Laborer | Scotland |
| 73 | Mary J Donachie | 39 | Wife | None | Scotland |
| 74 | Mary Donachie | 10 | Daughter | — | Scotland |
| 75 | Charles J Donachie | 8 | Son | — | Scotland |
| 76 | Kathleen Donachie | 6 | Daughter | — | Scotland |
| 77 | James A Donachie | 4 | Son | — | Scotland |
| 78 | Archibald Donachie | 1 | Son | — | Massachusetts |
| 79 | Michael J Donnelly | 20 | Head | Chipper | Ireland |
| 80 | Mary Donnelly | 40 | Wife | None | Ireland |
| 81 | Thomas J Grace | 14 | Son | Messenger | New York |
| 82 | Margaret E Grace | 11 | Daughter | — | New York |
| 83 | Daniel Grace | 9 | Son | — | New York |
| 84 | John Donnelly | 5 | Son | — | Massachusetts |
| 85 | Mary Donnelly THIS PERSON | 4 | Daughter | — | Massachusetts |
| 86 | Margaret Williams | 43 | Head | None | Massachusetts |
| 87 | Josephine Williams | 24 | Daughter | Winder | Massachusetts |
| 88 | Helen H Williams | 22 | Daughter | Winder | Massachusetts |
| 89 | Felix M Decostello | 47 | Head | Laster | Canada French |
| 90 | Victoria R Decostello | 48 | Wife | None | Canada French |
| 91 | Edmund Decostello | 24 | Son | Machinist | Massachusetts |
| 92 | Arthur Decostello | 22 | Son | Assembler | Massachusetts |
| 93 | Louise Decostello | 20 | Daughter | Assembler | Massachusetts |
| 94 | Rene Decostello | 18 | Son | Sheet Metal | Massachusetts |
| 95 | John Ogul | 34 | Head | Die Maker | Russia Polish |
| 96 | Addie Ogul | 37 | Wife | None | Russia Polish |
| 97 | Wally Ogul | 12 | Daughter | — | Russia Polish |
| 98 | Sophie Ogul | 4 | Daughter | — | Virginia |
| 99 | Edward Johnson | 30 | Lodger | Machinist | Russia Polish |
| 100 | Amali Jurgenson | 30 | Lodger | Taper | Russia Polish |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1910 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)