MC
Mary Carroll — 1930 US Census Record
Model Tree available1930 United States Federal Census · Cook, Illinois
Our Model Tree links this Mary Carroll across the 1910, 1920 and 1930 US Censuses in Cook, Illinois (XGBoost, ~Confirmed), with identified parents Patrick & Patrick — first a daughter (b.~1910), then head of a 10-person household.
Age 20
b. ~1910
Female
Daughter
Born: Illinois
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Cook, Illinois |
| Surname | Carroll |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Additional Details | |
| Can Read/Write | 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.
10 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Carroll | Daughter | — | 20 | ~1910 |
| Patricia Carroll | Daughter | — | 9 | ~1921 |
| Edna Carroll | Daughter | — | 18 | ~1912 |
| Patrick Carroll | Head | — | 56 | ~1874 |
| Thomas O'Brien | Other | — | 25 | ~1905 |
| Edward O'Brien | Other | — | 23 | ~1907 |
| Patrick Carroll | Son | — | ~1930 | |
| Joseph Carroll | Son | — | 13 | ~1917 |
| Raymond Carroll | Son | — | 14 | ~1916 |
| Mary Carroll | Spouse | — | 39 | ~1891 |
Census Appearances
1910
Cook, Illinois
Daughter, age
Cook, Illinois · implied b. ~1910 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carroll |
| Given Name | Mary V. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1920
Cook, Illinois
Daughter, age 10
Cook, Illinois · implied b. ~1910 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carroll |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Daughter, age 20
Cook, Illinois · implied b. ~1910 — 10 household members
| Surname | Carroll |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read/Write | 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 Carroll across 3 US Census years (1910, 1920 and 1930) in Cook, Illinois, using XGBoost record linkage. Identified parents: father Patrick Carroll (~0.92 confidence) and father Patrick Carroll (~0.92 confidence) and mother Mary Carroll (~0.92 confidence) and mother Mary Carroll (~0.92 confidence) and mother Mary Carroll (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Patrick Carroll
b. ~1874
Source father
● Household
· direct · ~0.92
Father
Patrick Carroll
b. ~1877
Source father
● Household
· direct · ~0.92
Mother
Mary Carroll
b. ~1890
Source mother
● Household
· direct · ~0.92
Mother
Mary Carroll
b. ~1891
Source mother
● Household
· direct · ~0.92
Mother
Mary Carroll
b. ~1893
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Carroll
Daughter · 1930 · age 20 · b. ~1910 · Illinois
★ You are viewing this record
Sibling
Edna Carroll
Sibling · 1930 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Raymond Carroll
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Carroll
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patricia Carroll
Sibling · 1930 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patrick Carroll
Sibling · 1930 · age
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
1930 US Federal Census — Cook, Illinois
Open full size
1930 US Federal Census — Cook, Illinois
Page Contents
50 people indexed on this census page (ia:1930:illinoiscensus00reel434:0480)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Joseph Lozinski | 62 | Head | Laborer | Poland |
| 2 | Rose Lozinski | 56 | Wife | — | Poland |
| 3 | Witold Lozinski | 29 | Head | Foreman | Poland |
| 4 | Anastasia Lozinski | 25 | Wife | — | Illinois |
| 5 | Norman Lozinski | 1 | Son | — | Illinois |
| 6 | Joseph Lozinski | 28 | Head | Laborer | Poland |
| 7 | Josephine Lozinski | 30 | Wife | Cook | Poland |
| 8 | Ray Krupinski | 33 | Head | Policeman | Illinois |
| 9 | Catherine Krupinski | 29 | Wife | — | Illinois |
| 10 | Valentine Krupinski | 66 | Head | Laborer | Poland |
| 11 | Veronica Krupinski | 55 | Wife | Yes | Poland |
| 12 | Adam Krupinski | 36 | Son | Painter | Illinois |
| 13 | Patrick Carroll | 56 | Head | State Senator | Illinois |
| 14 | Mary Carroll | 39 | Wife | — | Illinois |
| 15 | Mary Carroll THIS PERSON | 20 | Daughter | — | Illinois |
| 16 | Edna Carroll | 18 | Daughter | — | Illinois |
| 17 | Raymond Carroll | 14 | Son | — | Illinois |
| 18 | Joseph Carroll | 13 | Son | — | Illinois |
| 19 | Patricia Carroll | 9 | Daughter | — | Illinois |
| 20 | Patrick Carroll | 0 | Son | — | Illinois |
| 21 | Thomas O'Brien | 25 | Roomer | Machinist | Illinois |
| 22 | Edward O'Brien | 23 | Roomer | Mechanic | Illinois |
| 23 | Stanley Celeski | 49 | Head | — | Poland |
| 24 | Mary Celeski | 42 | Wife | Yes | Poland |
| 25 | Anthony Celeski | 24 | Son | — | Illinois |
| 26 | Leo Celeski | 22 | Son | Driver | Illinois |
| 27 | Alexander Celeski | 20 | Son | Laborer | Illinois |
| 28 | Genevieve Celeski | 18 | Daughter | — | Illinois |
| 29 | Clara Celeski | 16 | Daughter | — | Illinois |
| 30 | Ellen Celeski | 10 | Daughter | — | Illinois |
| 31 | Joseph Kwitkowski | 70 | Head | Retired | Poland |
| 32 | John Kwitkowski | 39 | Son | Laborer | Illinois |
| 33 | Ellison Elliott | 45 | Head | — | New Jersey |
| 34 | Frank Elliott | 55 | Brother | — | New Jersey |
| 35 | John Hewitt | 27 | Head | Weaver | New Jersey |
| 36 | Helen Hewitt | 22 | Wife | — | Illinois |
| 37 | Doris Hewitt | 3 | Daughter | — | Illinois |
| 38 | Evelyn Hewitt | 1 | Daughter | — | Illinois |
| 39 | John Parciak | 46 | Head | Laborer | Poland |
| 40 | Mary Parciak | 40 | Wife | Yes | Poland |
| 41 | Henry Parciak | 17 | Son | Errand Boy | Illinois |
| 42 | John Parciak | 14 | Son | — | Illinois |
| 43 | Irene Parciak | 12 | Daughter | — | Illinois |
| 44 | Helen Parciak | 10 | Daughter | — | Illinois |
| 45 | Clara Parciak | 7 | Daughter | — | Illinois |
| 46 | Chester Parciak | 5 | Son | — | Illinois |
| 47 | George Canell | 36 | Head | Stock Chaser | Ohio |
| 48 | Irene Canell | 31 | Wife | — | Illinois |
| 49 | George Jr. Canell | 6 | Son | — | Illinois |
| 50 | Mary Mcnamara | 60 | Head | — | Irish Free State |
Related Census Records
Pedigree Summary
Mary + 5 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 1930 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)