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Mary Mccarthy — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Cook, Illinois
Our Model Tree links this Mary Mccarthy across the 1910 and 1920 US Censuses in Cook, Illinois (XGBoost, ~Confirmed) — first a daughter (b.~1910), then head of a 9-person household.
Age 10
b. ~1910
Female
Daughter
Born: Illinois
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Cook, Illinois |
| Surname | McCarthy |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1910 |
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.
9 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Helen Mccarthy | Daughter | — | 4 | ~1916 |
| Mary Mccarthy | Daughter | — | 10 | ~1910 |
| Alice Mccarthy | Daughter | — | 14 | ~1906 |
| Anna Mccarthy | Daughter | — | 12 | ~1908 |
| Francis Mccarthy | Daughter | — | 7 | ~1913 |
| Jeremiah Mccarthy | Head | — | 50 | ~1870 |
| Leo Mccarthy | Son | — | 17 | ~1903 |
| John Mccarthy | Son | — | 2 | ~1918 |
| Mary Mccarthy | Spouse | — | 45 | ~1875 |
Census Appearances
1910
Cook, Illinois
Daughter, age
Cook, Illinois · implied b. ~1910 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCarthy |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1920
Cook, Illinois
Daughter, age 10
Cook, Illinois · implied b. ~1910 — 9 household members
| Surname | McCarthy |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 Mccarthy across 2 US Census years (1910 and 1920) in Cook, Illinois, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Mccarthy
Daughter · 1920 · age 10 · b. ~1910 · Illinois
★ You are viewing this record
Sibling
Helen Mccarthy
Sibling · 1920 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Mccarthy
Sibling · 1920 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anna Mccarthy
Sibling · 1920 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Francis Mccarthy
Sibling · 1920 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Mccarthy
Sibling · 1920 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leo Mccarthy
Sibling · 1920 · age 17
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 — Cook, Illinois
Open full size
1920 US Federal Census — Cook, Illinois
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu314unit:0833)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Henry Schmidig | 37 | Head | Sheet Metal Worker | Illinois |
| 2 | Felix Termeaski | 37 | Head | Motorman | Poland |
| 3 | Anna Termeaski | 36 | Wife | — | Illinois |
| 4 | Felix Termeaski | 15 | Son | — | Illinois |
| 5 | Helen Termeaski | 12 | Daughter | — | Illinois |
| 6 | Frank Termeaski | 8 | Son | — | Illinois |
| 7 | Violet Termeaski | 5 | Daughter | — | Illinois |
| 8 | Jeremiah Mccarthy | 50 | Head | Motorman | Ireland |
| 9 | Mary Mccarthy | 45 | Wife | — | Ireland |
| 10 | Leo Mccarthy | 17 | Son | Shipping Clerk | Illinois |
| 11 | Alice Mccarthy | 14 | Daughter | — | Illinois |
| 12 | Anna Mccarthy | 12 | Daughter | — | Illinois |
| 13 | Mary Mccarthy THIS PERSON | 10 | Daughter | — | Illinois |
| 14 | Francis Mccarthy | 7 | Daughter | — | Illinois |
| 15 | Helen Mccarthy | 4 | Daughter | — | Illinois |
| 16 | John Mccarthy | 2 | Son | — | Illinois |
| 17 | Mike Plamickis | 43 | Head | Laborer | Lithuania |
| 18 | Carolina Plamickis | 31 | Wife | — | Lithuania |
| 19 | Stella Plamickis | 18 | Daughter | Bill Clerk | Illinois |
| 20 | Anna Plamickis | 12 | Daughter | File Clerk | Illinois |
| 21 | Leo Plamickis | 15 | Son | — | Illinois |
| 22 | Paul Netriski | 26 | Head | Apprentice | Lithuania |
| 23 | Veronica Netriski | 24 | Wife | — | Lithuania |
| 24 | Raymond Netriski | 4 | Son | — | Illinois |
| 25 | Tony Porte | 18 | Boarder | Plate Polisher | Illinois |
| 26 | Wm J Ciszek | 37 | Head | Molder | Illinois |
| 27 | Katie Ciszek | 30 | Wife | Housekeeper | Illinois |
| 28 | Marie Ciszek | 15 | Daughter | File Clerk | Illinois |
| 29 | Bernice Ciszek | 13 | Daughter | — | Illinois |
| 30 | John Barry | 67 | Head | Laborer | New York |
| 31 | Mary Barry | 53 | Wife | Housekeeper | Ireland |
| 32 | Andrew Mudd | 57 | Head | Machinist | Illinois |
| 33 | Ellen Mudd | 56 | Wife | — | Illinois |
| 34 | Inez Mudd | 25 | Daughter | Saleslady | Illinois |
| 35 | Belva Mudd | 12 | Daughter | — | Illinois |
| 36 | Evelyn Tallon | 22 | Daughter | Saleslady | Illinois |
| 37 | Joe Bykowski | 70 | Head | Laborer | Poland |
| 38 | Antonette Bykowski | 68 | Wife | — | Poland |
| 39 | Anna Bykowski | 28 | Daughter | Operator | Illinois |
| 40 | Antonette Bykowski | 24 | Daughter | — | Illinois |
| 41 | Wm Lenz | 41 | Head | Printer | Illinois |
| 42 | Emily Lenz | 37 | Wife | — | Germany |
| 43 | Renatta Lenz | 18 | Daughter | Bill Clerk | Illinois |
| 44 | Edna Lenz | 15 | Daughter | Clerk | Illinois |
| 45 | Eleanor Lenz | 8 | Daughter | — | Illinois |
| 46 | Wm Lenz | 13 | Son | — | Illinois |
| 47 | Herman Bidman | 61 | Father-in-law | Watchman | Germany |
| 48 | Frank Schaefer | 32 | Head | Policeman | Illinois |
| 49 | Nellie Schaefer | 60 | Mother | — | Indiana |
| 50 | Joe Markiewicz | 62 | Head | Laborer | Germany |
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)