MD
Mary Donnelly — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Essex, New Jersey
Our Model Tree links this Mary Donnelly across the 1900, 1910 and 1920 US Censuses in Essex, New Jersey (XGBoost, ~Confirmed) — first a head (b.~1849), then head of a 2-person household.
Age 71
b. ~1849
Female
Head
Born: Ireland
Widowed
1920 Census Record Details
| Census Year | 1920 |
| Location | Essex, New Jersey |
| Surname | Donnelly |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 71 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Year of Immigration | 1854 |
| 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 |
| Home Owned/Rented | R |
| Birth Country | Ireland |
| Year of Naturalization | 1860 |
| Birthplace (normalized) | ireland |
| Township / Ward | City Of Newark |
| Est. Birth Year | ~1849 |
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.
2 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Nellie Donnelly | Daughter | — | 40 | ~1880 |
| Mary Donnelly | Head | — | 71 | ~1849 |
Census Appearances
1900
Essex, New …
Other, age 50
Essex, New Jersey · implied b. ~1850 — 50 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Donnelly |
| Given Name | Mary A. |
| Relationship to Head | Patient |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Ireland |
| Birth Year | 1850 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Housewife |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1910
Essex, New …
Head, age 60
Essex, New Jersey · implied b. ~1850 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Donnelly |
| Given Name | Mary E |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 60 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Years Married | 39 |
| Children Born | 9 |
| Children Living | 6 |
| Year of Immigration | 1866 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | own income |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1920
Essex, New …
Head, age 71
Essex, New Jersey · implied b. ~1849 — 2 household members
| Surname | Donnelly |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 71 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Year of Immigration | 1854 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Birth Country | Ireland |
| Year of Naturalization | 1860 |
| 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 Essex, New Jersey, using XGBoost record linkage.
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This person
Anchor record
Mary Donnelly
Head · 1920 · age 71 · b. ~1849 · New Jersey
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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 — Essex, New Jersey
Open full size
1920 US Federal Census — Essex, New Jersey
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu1038unit:0363)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Edward Wagner | 17 | Son | — | New Jersey |
| 52 | John Wagner | 7 | Son | — | New Jersey |
| 53 | Thomas Walker | 50 | Head | Toolmaker | England |
| 54 | Elizabeth Walker | 47 | Wife | — | New Jersey |
| 55 | Edith Walker | 16 | Daughter | — | New Jersey |
| 56 | Dorothy Walker | 11 | Daughter | — | New Jersey |
| 57 | Elizabeth Wagner | 67 | Mother-in-law | — | Germany |
| 58 | David L. Everett | 47 | Head | Clerk | New Jersey |
| 59 | Florence Everett | 45 | Wife | — | New Jersey |
| 60 | Florence Everett | 21 | Daughter | Clerk | New Jersey |
| 61 | Parker Everett | 18 | Son | Clerk | New Jersey |
| 62 | Theresa Schoener | 63 | Head | — | Germany |
| 63 | Clara Schoener | 32 | Daughter | Stenographer | New York |
| 64 | Phillip Schoener | 19 | Son | Clerk | New Jersey |
| 65 | Elsie Halsam | 40 | Sister | — | Germany |
| 66 | Charlotte Halsam | 19 | Boarder | Clerk | New Jersey |
| 67 | Otto Siess | 34 | Head | Manufacturer | New Jersey |
| 68 | Hattie Siess | 35 | Wife | — | New Jersey |
| 69 | Otto Jr. Siess | 14 | Son | — | New Jersey |
| 70 | Mildred Siess | 10 | Daughter | — | New Jersey |
| 71 | Valentine Reissel | 73 | Head | Retired | Germany |
| 72 | Regina Reissel | 60 | Wife | — | Germany |
| 73 | Frederick Niebuhr | 60 | Boarder | — | Germany |
| 74 | Bernhart Zerrall | 63 | Head | Carpenter | Germany |
| 75 | Maggie Zerrall | 57 | Wife | File Maker | Germany |
| 76 | Anna Zerrall | 25 | Daughter | Clerk | New Jersey |
| 77 | Julius Rigling | 56 | Head | — | Germany |
| 78 | Alma Rigling | 30 | Daughter | Clerk | New Jersey |
| 79 | Ernest Rigling | 28 | Son | Jeweler | New Jersey |
| 80 | George Rigling | 24 | Son | Jeweler | New Jersey |
| 81 | Mathilda Rigling | 21 | Daughter | Clerk | New Jersey |
| 82 | Ralph Booth | 25 | Head | Jeweler | New Jersey |
| 83 | Alice Booth | 21 | Wife | — | New Jersey |
| 84 | Mary Donnelly THIS PERSON | 71 | Head | — | Ireland |
| 85 | Nellie Donnelly | 40 | Daughter | — | New Jersey |
| 86 | Joseph Fagan | 52 | Head | Salesman | Ireland |
| 87 | Jennie Fagan | 51 | Wife | — | New York |
| 88 | Joseph Fagan | 15 | Son | — | New Jersey |
| 89 | Edward Fagan | 9 | Son | — | New Jersey |
| 90 | William Fagan | 4 | Son | — | New Jersey |
| 91 | Annie Croake | 62 | Sister-in-law | — | New Jersey |
| 92 | Edward Blewitt | 35 | Head | Bookkeeper | New Jersey |
| 93 | Catherine Blewitt | 33 | Wife | — | New Jersey |
| 94 | Edward Jr. Blewitt | 6 | Son | — | New Jersey |
| 95 | John Robertson | 54 | Head | Painter | Scotland |
| 96 | Elizabeth Robertson | 52 | Wife | — | New Jersey |
| 97 | Carrie Robertson | 25 | Daughter | — | New York |
| 98 | Violet Robertson | 20 | Daughter | Typist | New Jersey |
| 99 | Rose Robertson | 20 | Daughter | Typist | New Jersey |
| 100 | Edward Rathers | 31 | Head | Bookkeeper | New Jersey |
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)