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Margaret Mccarthy — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Middlesex, Massachusetts
Our Model Tree links this Margaret Mccarthy across the 1900, 1910 and 1920 US Censuses in Middlesex, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1850), then head of a 3-person household.
Age 70
b. ~1850
Female
Head
Born: Ireland
Widowed
1920 Census Record Details
| Census Year | 1920 |
| Location | Middlesex, Massachusetts |
| Surname | McCarthy |
| Given Name | Margaret |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 70 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Year of Immigration | 1857 |
| Naturalization Status | Alien |
| 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 | F |
| Birth Country | Ireland |
| Year of Naturalization | O |
| Birthplace (normalized) | ireland |
| Township / Ward | Lexington Town |
| Est. Birth Year | ~1850 |
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 Mccarthy | Daughter | — | 40 | ~1880 |
| Margaret Mccarthy | Head | — | 70 | ~1850 |
| Ellen Keefe | Other | — | 76 | ~1844 |
Census Appearances
1900
Middlesex, Massachusetts
Head, age 52
Middlesex, Massachusetts · implied b. ~1848 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCarthy |
| Given Name | Margaret |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 52 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Birth Month | May |
| Birth Year | 1848 |
| Year of Immigration | 1866 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1910
Middlesex, Massachusetts
Head, age 60
Middlesex, Massachusetts · implied b. ~1850 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCarthy |
| Given Name | Margaret |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 60 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Children Born | 9 |
| Children Living | 6 |
| Year of Immigration | 1884 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1920
Middlesex, Massachusetts
Head, age 70
Middlesex, Massachusetts · implied b. ~1850 — 3 household members
| Surname | McCarthy |
| Given Name | Margaret |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 70 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Year of Immigration | 1857 |
| Naturalization Status | Alien |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | F |
| Birth Country | Ireland |
| Year of Naturalization | O |
| 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 Mccarthy across 3 US Census years (1900, 1910 and 1920) in Middlesex, Massachusetts, using XGBoost record linkage.
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This person
Anchor record
Margaret Mccarthy
Head · 1920 · age 70 · b. ~1850 · Massachusetts
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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 — Middlesex, Massachusetts
Open full size
1920 US Federal Census — Middlesex, Massachusetts
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu710unit:0606)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Mary R. Casey | 9 | Daughter | — | Ireland |
| 52 | Beatrice M. Casey | 3 | Daughter | — | Ireland |
| 53 | Louis B. Mooney | 33 | Head | Teamster | Massachusetts |
| 54 | Ella J. Mooney | 36 | Wife | — | Canada |
| 55 | Francis A. Mooney | 11 | Son | — | Massachusetts |
| 56 | Louis E. Mooney | 8 | Son | — | Massachusetts |
| 57 | Harold E. Mooney | 6 | Son | — | Massachusetts |
| 58 | Ella L. Mooney | 1 | Daughter | — | Massachusetts |
| 59 | Granville N. Smith | 67 | Head | Teamster | Massachusetts |
| 60 | Alice Smith | 63 | Wife | — | Massachusetts |
| 61 | Margaret Mccarthy THIS PERSON | 70 | Head | — | Ireland |
| 62 | Ellen Keefe | 76 | Sister-in-law | — | Ireland |
| 63 | Margaret A. Mccarthy | 40 | Daughter | Stenographer | Massachusetts |
| 64 | Johnson J. Armstrong | 37 | Head | Contractor | Canada |
| 65 | Annie E. Armstrong | 33 | Wife | — | Ireland |
| 66 | Hazel Armstrong | 10 | Daughter | — | Massachusetts |
| 67 | Florence H. Armstrong | 9 | Daughter | — | Massachusetts |
| 68 | Mildred L. Armstrong | 6 | Daughter | — | Massachusetts |
| 69 | Howard Armstrong | 4 | Son | — | Massachusetts |
| 70 | Leslie P. Armstrong | 1 | Son | — | Massachusetts |
| 71 | Joseph F. Buckley | 25 | Head | Plumber | Massachusetts |
| 72 | Mary F. Buckley | 26 | Wife | — | Massachusetts |
| 73 | Anna G. Mccann | 23 | Sister-in-law | Saleswoman | Massachusetts |
| 74 | James T. Mccann | 21 | Brother-in-law | Machinist | Massachusetts |
| 75 | William G. Buckley | 24 | Boarder | Haberdasher | Canada |
| 76 | John R. Mclaughlin | 29 | Head | Shipper | Massachusetts |
| 77 | Mary P. Mclaughlin | 30 | Wife | — | Ireland |
| 78 | Marie T. Mclaughlin | 1 | Daughter | — | Massachusetts |
| 79 | Frank O. Nelson | 52 | Head | Cobbler | Sweden |
| 80 | David S. Nelson | 42 | Wife | Laundress | Sweden |
| 81 | Esther M. Nelson | 14 | Daughter | — | Massachusetts |
| 82 | Alfred G. Nelson | 10 | Son | — | Massachusetts |
| 83 | Grace H. Nelson | 6 | Daughter | — | Massachusetts |
| 84 | James F. Halloran | 33 | Head | Teacher | Massachusetts |
| 85 | Mary M. Halloran | 29 | Wife | — | Massachusetts |
| 86 | James F. Halloran | 5 | Son | — | Massachusetts |
| 87 | Arthur C. Halloran | 2 | Son | — | Massachusetts |
| 88 | Frank M. Parker | 30 | Head | Carpenter | Canada |
| 89 | Jessie M. Parker | 31 | Wife | — | Canada |
| 90 | Leonard C. Parker | 6 | Son | — | Massachusetts |
| 91 | Russell S. Parker | 3 | Son | — | Massachusetts |
| 92 | James A. Parker | 33 | Brother | Farm Laborer | Canada |
| 93 | Ernest L. Delong | 42 | Head | Chauffeur | Canada |
| 94 | Emily Delong | 39 | Wife | — | Sweden |
| 95 | Emily E. Delong | 19 | Daughter | — | Massachusetts |
| 96 | Ethel M. Delong | 15 | Daughter | — | Massachusetts |
| 97 | Ernest L. Delong | 7 | Son | — | Vermont |
| 98 | Arthur Delong | 4 | Son | — | Vermont |
| 99 | William Delong | 2 | Son | — | Ireland |
| 100 | James Delong | 1 | Son | — | Ireland |
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)