TM
Thomas Mccarthy — 1920 US Census Record
Model Tree available1920 United States Federal Census · Middlesex, Massachusetts
Our Model Tree links this Thomas Mccarthy across the 1900, 1910 and 1920 US Censuses in Middlesex, Massachusetts (XGBoost, ~Confirmed), with identified parents Thomas & Mary — first a son (b.~1891), then head of a 6-person household.
Age 29
b. ~1891
Male
Son
Born: Massachusetts
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Middlesex, Massachusetts |
| Surname | McCarthy |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Additional Details | |
| Occupation | Lawyer |
| Industry | General Practice |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Lawyer |
| Township / Ward | Waltham City |
| Est. Birth Year | ~1891 |
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.
6 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Thomas | Age | Birth yr |
|---|---|---|---|---|
| Margaret Mccarthy | Daughter | — | 27 | ~1893 |
| Thomas Mccarthy | Son | — | 29 | ~1891 |
| Frank Mccarthy | Son | — | 35 | ~1885 |
| Mary Mccarthy | Head | — | 60 | ~1860 |
| Jeannette Brophy | Other | — | 23 | ~1897 |
| Dorothy Mccarthy | Daughter | — | 19 | ~1901 |
Census Appearances
1900
Middlesex, Massachusetts
Son, age 11
Middlesex, Massachusetts · implied b. ~1889 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCarty |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Birth Month | Dec |
| Birth Year | 1889 |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | At School |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1910
Middlesex, Massachusetts
Son, age 20
Middlesex, Massachusetts · implied b. ~1890 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCarthy |
| Given Name | Thomas F |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | Finisher |
| Industry | Watch factory |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1920
Middlesex, Massachusetts
Son, age 29
Middlesex, Massachusetts · implied b. ~1891 — 6 household members
| Surname | McCarthy |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | Lawyer |
| Industry | General Practice |
| Class of Worker | OA |
| 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 Thomas Mccarthy across 3 US Census years (1900, 1910 and 1920) in Middlesex, Massachusetts, using XGBoost record linkage. Identified parents: father Thomas Mccarthy (~0.92 confidence) and mother Mary Mccarthy (~0.92 confidence) and mother Mary Mccarthy (~0.92 confidence) and father Dennis Mccarty (~0.92 confidence) and mother Elizabeth Mccarty (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Thomas Mccarthy
b. ~1856
Source father
● Household
· direct · ~0.92
Mother
Mary Mccarthy
b. ~1860
Source mother
● Household
· direct · ~0.92
Mother
Mary Mccarthy
b. ~1860
Source mother
● Household
· direct · ~0.92
Father
Dennis Mccarty
b. ~1863
Source father
● Household
· direct · ~0.92
Mother
Elizabeth Mccarty
b. ~1864
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Thomas Mccarthy
Son · 1920 · age 29 · b. ~1891 · Massachusetts
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Sibling
Frank Mccarthy
Sibling · 1920 · age 35
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Mccarthy
Sibling · 1920 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Mccarthy
Sibling · 1920 · age 27
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
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:1920:14thcensusofpopu719unit:0912)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John A Marr | 37 | Head | Foreman | Massachusetts |
| 2 | Margaret Marr | 37 | Wife | — | New York |
| 3 | Loretta Marr | 12 | Daughter | — | Massachusetts |
| 4 | Harold Marr | 4 | Son | — | Massachusetts |
| 5 | Benjamin Ripley | 60 | Head | Machinist | Massachusetts |
| 6 | Melissa Ripley | 54 | Wife | — | Maine |
| 7 | Marion Ripley | 34 | Daughter | Operator | Massachusetts |
| 8 | Fred F Roche | 26 | Head | Laborer | Massachusetts |
| 9 | Estella Roche | 27 | Wife | — | Massachusetts |
| 10 | Helen G Roche | 3 | Daughter | — | Massachusetts |
| 11 | Katherine M Roche | 1 | Daughter | — | Massachusetts |
| 12 | Ernest Marshall | 30 | Head | Painter | Massachusetts |
| 13 | Fannie Marshall | 25 | Wife | — | Massachusetts |
| 14 | Helen J Marshall | 8 | Daughter | — | Massachusetts |
| 15 | William L Marshall | 5 | Son | — | Massachusetts |
| 16 | Robert E Marshall | 3 | Son | — | Massachusetts |
| 17 | James Manning | 55 | Head | Moulder | Massachusetts |
| 18 | Mary Manning | 50 | Sister | — | Massachusetts |
| 19 | Peter Manning | 51 | Brother | Laborer | Massachusetts |
| 20 | Margaret Manning | 49 | Sister | Laborer | Massachusetts |
| 21 | R Johanna Manning | 47 | Sister | Laborer | Massachusetts |
| 22 | Winifred Manning | 44 | Sister | Laborer | Massachusetts |
| 23 | Michael Walsh | 33 | Lodger | Laborer | Massachusetts |
| 24 | John L Patriquin | 40 | Head | Salesman | Nova Scotia |
| 25 | Florence G Patriquin | 31 | Wife | — | Nova Scotia |
| 26 | Carolyn F Patriquin | 4 | Daughter | — | Massachusetts |
| 27 | Mary E Mccarthy | 60 | Head | — | Massachusetts |
| 28 | Frank J Mccarthy | 35 | Son | Salesman | Massachusetts |
| 29 | Thomas Mccarthy THIS PERSON | 29 | Son | Lawyer | Massachusetts |
| 30 | Margaret E Mccarthy | 27 | Daughter | Stenographer | Massachusetts |
| 31 | Dorothy A Mccarthy | 19 | Daughter | Stenographer | Massachusetts |
| 32 | Jeannette F Brophy | 23 | Lodger | Supervisor | Nova Scotia |
| 33 | Mario A Flagg | 63 | Head | Painter | Massachusetts |
| 34 | Annie R Flagg | 52 | Wife | — | Massachusetts |
| 35 | Frederick B Flagg | 25 | Son | Chemist | Massachusetts |
| 36 | George A Flagg | 20 | Son | Insurance Agent | Massachusetts |
| 37 | Fred S Evans | 50 | Head | Machinist | Massachusetts |
| 38 | Estelle Evans | 50 | Wife | — | Massachusetts |
| 39 | Allen F Evans | 17 | Son | — | Massachusetts |
| 40 | Grace Evans | 16 | Daughter | — | Massachusetts |
| 41 | Mary A Dunn | 80 | Mother-in-law | — | Maine |
| 42 | Joseph E Jones | 45 | Head | Laborer | Maine |
| 43 | Ada Jones | 47 | Wife | — | Maine |
| 44 | Frances E Jones | 12 | Daughter | — | Maine |
| 45 | Julia Powers | 67 | Head | — | Ireland |
| 46 | Richard M Powers | 45 | Son | Machinist | Massachusetts |
| 47 | Ellen O'Brien | 70 | Lodger | — | Ireland |
| 48 | Katherine Gately | 54 | Head | — | Massachusetts |
| 49 | Mary G Gately | 32 | Daughter | — | Massachusetts |
| 50 | Charles F Gately | 21 | Son | Stenographer | Massachusetts |
Pedigree Summary
Thomas + 3 siblings
Gen 1 · 5 parents
~0.92
Max depth 4 (1900–1950 window)
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)