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Margaret Brennan — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Onondaga, New York
Our Model Tree links this Margaret Brennan across the 1920, 1930 and 1940 US Censuses in Onondaga, New York (XGBoost, ~Confirmed) — first a head (b.~1848), then head of a 3-person household.
Age 72
b. ~1848
Female
Head
Born: Ireland
Widowed
1920 Census Record Details
| Census Year | 1920 |
| Location | Onondaga, New York |
| Surname | Brennan |
| Given Name | Margaret |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 72 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Year of Immigration | 1861 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Birth Country | Ireland |
| Year of Naturalization | 1875 |
| Birthplace (normalized) | ireland |
| Township / Ward | Syracuse City |
| Est. Birth Year | ~1848 |
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.
3 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Margaret Brennan | Head | — | 72 | ~1848 |
| Patrick Brennan | Son | — | 44 | ~1876 |
| Mary Brennan | Daughter | — | 41 | ~1879 |
Census Appearances
1920
Onondaga, New …
Head, age 72
Onondaga, New York · implied b. ~1848 — 3 household members
| Surname | Brennan |
| Given Name | Margaret |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 72 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Year of Immigration | 1861 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Birth Country | Ireland |
| Year of Naturalization | 1875 |
| Birthplace (normalized) | ireland |
1930
Albany, New …
Other, age 83
Albany, New York · implied b. ~1847 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brennan |
| Given Name | Margaret |
| Relationship to Head | Mother-in-law |
| Sex | F |
| Color / Race | White |
| Age | 83 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1860 |
| Age at First Marriage | 23 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1940
Albany-County, New …
Other, age 90
Albany-County, New York · implied b. ~1850 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brennan |
| Given Name | Margaret |
| Relationship to Head | Mother |
| Sex | F |
| Color / Race | White |
| Age | 90 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| 1935 Residence (City) | Albany |
| 1935 Residence (County) | Albany |
| Naturalization Status | Naturalized |
| Class of Worker | 0 |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth Country | Ireland |
| 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 Margaret Brennan across 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage.
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This person
Anchor record
Margaret Brennan
Head · 1920 · age 72 · b. ~1848 · New York
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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 — Onondaga, New York
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1920 US Federal Census — Onondaga, New York
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu1248unit:0882)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Alonzo Montgomery | 51 | Head | Draughtsman | New York |
| 2 | Catherine Montgomery | 48 | Wife | None | New York |
| 3 | Joseph W. Dawson | 51 | Head | Contractor | New York |
| 4 | Neil Dawson | 51 | Wife | None | New York |
| 5 | Edward Dawson | 24 | Son | None | New York |
| 6 | Bernard Dawson | 22 | Son | None | New York |
| 7 | George Dawson | 12 | Son | None | New York |
| 8 | Robert Dawson | 10 | Son | None | New York |
| 9 | Gertrude Dawson | 14 | Daughter | None | New York |
| 10 | Agnes Dawson | 17 | Daughter | None | New York |
| 11 | John Slack | 27 | Head | Lawyer | New York |
| 12 | Lula H. Slack | 25 | Wife | None | New York |
| 13 | Clovis J. Slack | 2 | Son | None | New York |
| 14 | Hall J. Spring | 54 | Cousin | Repairman | New York |
| 15 | Rosa A. Spring | 54 | Mother-in-law | None | Canada |
| 16 | William S. Mahan | 50 | Head | Salesman | New York |
| 17 | Nellie E. Mahan | 47 | Wife | None | New York |
| 18 | Mary E. Mahan | 22 | Daughter | None | New York |
| 19 | James Mahan | 40 | Brother | Laborer | New York |
| 20 | Mary E. Mahan | 38 | Sister | Buyer | New York |
| 21 | Henry Ryan | 30 | Head | Brakeman | New York |
| 22 | Margaret Ryan | 26 | Wife | None | Pennsylvania |
| 23 | William Ryan | 6 | Son | None | Pennsylvania |
| 24 | Frank Ryan | 23 | Brother-in-law | Stock Clerk | Pennsylvania |
| 25 | Dennis J. Mcnamara | 43 | Head | Dye Caster | New York |
| 26 | Sarah Mcnamara | 44 | Wife | None | Ireland |
| 27 | James F. Mcnamara | 14 | Son | None | New York |
| 28 | Elizabeth G. Mcnamara | 12 | Daughter | None | New York |
| 29 | James Burns | 21 | Boarder | Dye Caster | New York |
| 30 | John Burns | 24 | Cousin | Dye Caster | New York |
| 31 | John Mcnamara | 23 | Cousin | Dye Caster | Pennsylvania |
| 32 | Matthew Mcisaac | 45 | Head | Dye Caster | Ireland |
| 33 | Agnes Mcisaac | 55 | Wife | None | Ireland |
| 34 | Joseph Kashinski | 30 | Head | Steelworker | Poland |
| 35 | Nellie Kashinski | 27 | Wife | None | Poland |
| 36 | Julian Kashinski | 28 | Head | Steel Worker | Poland |
| 37 | Josephine Kashinski | 25 | Wife | None | Poland |
| 38 | August Kashinski | 16 | Son | None | Poland |
| 39 | Anthony Kashinski | 14 | Son | None | Poland |
| 40 | Andrew Kashinski | 12 | Son | None | Poland |
| 41 | Anna Kashinski | 2 | Daughter | None | New York |
| 42 | Edward Kashinski | 1 | Son | None | New York |
| 43 | Vincent Buda | 40 | Boarder | Steel Worker | Poland |
| 44 | George Lockwood | 51 | Boarder | Wire Room | Russia |
| 45 | Frank Kachuck | 29 | Boarder | Laborer | Poland |
| 46 | Margaret Brennan THIS PERSON | 72 | Head | None | Ireland |
| 47 | Mary Brennan | 41 | Daughter | Foreman | New York |
| 48 | Patrick R. Brennan | 44 | Son | Steelworker | New York |
| 49 | Louis Polaski | 20 | Head | Steelworker | New York |
| 50 | Burton De Carr | 26 | Boarder | Steelworker | New York |
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)