MC
Mary Cavanaugh — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Cook, Illinois
Our Model Tree links this Mary Cavanaugh across the 1910 and 1920 US Censuses in Cook, Illinois (XGBoost, ~Confirmed) — first a daughter (b.~1910), then head of a 10-person household.
Age 10
b. ~1910
Female
Daughter
Born: Illinois
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Cook, Illinois |
| Surname | Cavanaugh |
| 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 |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago |
| 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 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Joseph Cavanaugh | Son | — | 13 | ~1907 |
| Patrick Cavanaugh | Head | — | 46 | ~1874 |
| John Cavanaugh | Son | — | 12 | ~1908 |
| James Cavanaugh | Son | — | 15 | ~1905 |
| Patrick Cavanaugh | Son | — | 18 | ~1902 |
| Francis Cavanaugh | Son | — | 19 | ~1901 |
| William Cavanaugh | Son | — | 4 | ~1916 |
| Anna Cavanaugh | Spouse | — | 43 | ~1877 |
| Ruth Cavanaugh | Daughter | — | 6 | ~1914 |
| Mary Cavanaugh | Daughter | — | 10 | ~1910 |
Census Appearances
1910
Cook, Illinois
Daughter, age 1
Cook, Illinois · implied b. ~1909 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cavanaugh |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| 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 — 10 household members
| Surname | Cavanaugh |
| 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 |
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 Cavanaugh across 2 US Census years (1910 and 1920) in Cook, Illinois, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Cavanaugh
Daughter · 1920 · age 10 · b. ~1910 · Illinois
★ You are viewing this record
Sibling
Francis Cavanaugh
Sibling · 1920 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patrick Cavanaugh
Sibling · 1920 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Cavanaugh
Sibling · 1920 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Cavanaugh
Sibling · 1920 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Cavanaugh
Sibling · 1920 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Cavanaugh
Sibling · 1920 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Cavanaugh
Sibling · 1920 · age 13
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:1920:14thcensusofpopu347unit:0749)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Margaret Furlong | 28 | Daughter | Bookkeeper | Illinois |
| 2 | Marie Furlong | 24 | Daughter | Cashier | Illinois |
| 3 | Charles Maigand | 21 | Head | Butcher | Illinois |
| 4 | Maud Maigand | 19 | Wife | — | Indiana |
| 5 | Fernand Haack | 21 | Head | Canning | Illinois |
| 6 | Louisa Haack | 45 | Mother | — | Illinois |
| 7 | Jerry Fitzsimmons | 50 | Boarder | Worker | Illinois |
| 8 | Mat Fitzsimmons | 44 | Boarder | Shipping | Illinois |
| 9 | Julie Wigand | 40 | Head | Clerk | Illinois |
| 10 | Jean Wigand | 18 | Daughter | Punch Press | Illinois |
| 11 | Louis A Wigand | 16 | Son | Shipping Dept | Illinois |
| 12 | Wm A Mason | 38 | Roomer | Traveling | Illinois |
| 13 | Daniel Murphy | 39 | Head | Clerk | Illinois |
| 14 | Mary Murphy | 31 | Wife | — | Illinois |
| 15 | Daniel Murphy | 11 | Son | — | Illinois |
| 16 | James Murphy | 10 | Son | — | Illinois |
| 17 | Patrick Cavanaugh | 46 | Head | Engineer | Illinois |
| 18 | Anna Cavanaugh | 43 | Wife | — | Illinois |
| 19 | Francis Cavanaugh | 19 | Son | Conductor | Illinois |
| 20 | Patrick Cavanaugh | 18 | Son | Riveter | Illinois |
| 21 | James Cavanaugh | 15 | Son | Wagon Boy | Illinois |
| 22 | Joseph Cavanaugh | 13 | Son | — | Illinois |
| 23 | John Cavanaugh | 12 | Son | — | Illinois |
| 24 | Mary Cavanaugh THIS PERSON | 10 | Daughter | — | Illinois |
| 25 | Ruth Cavanaugh | 6 | Daughter | — | Illinois |
| 26 | William Cavanaugh | 4 | Son | — | Illinois |
| 27 | John Thuck | 42 | Head | Inspector | New York |
| 28 | Hannah Thuck | 38 | Wife | — | Wisconsin |
| 29 | Louis Thuck | 16 | Son | Bedmaker | Wisconsin |
| 30 | Leo Thuck | 13 | Son | — | Wisconsin |
| 31 | Donald Thuck | 11 | Son | — | Wisconsin |
| 32 | John Mallers | 42 | Head | Switchman | Pennsylvania |
| 33 | Edith Mallers | 38 | Wife | — | England |
| 34 | Winifred Mallers | 16 | Daughter | Marker | Pennsylvania |
| 35 | Irene Mallers | 14 | Daughter | Errand Girl | Pennsylvania |
| 36 | Natalie Mallers | 11 | Daughter | — | Pennsylvania |
| 37 | Violet Mallers | 8 | Daughter | — | Illinois |
| 38 | Eloise Mallers | 4 | Daughter | — | Illinois |
| 39 | Vernon Mallers | 2 | Son | — | Illinois |
| 40 | Ruth Thuck | 4 | Daughter | — | Michigan |
| 41 | Russell Thuck | 2 | Son | — | Michigan |
| 42 | Samuel Ind | 48 | Head | Laborer | Ireland |
| 43 | Elizabeth Ind | 48 | Wife | — | Illinois |
| 44 | Gertrude Ind | 23 | Daughter | Stenographer | Illinois |
| 45 | James Ind | 21 | Son | Truck Helper | Illinois |
| 46 | Robert Ind | 16 | Son | Truck Helper | Illinois |
| 47 | Lillian Ind | 10 | Daughter | — | Illinois |
| 48 | Helen Ind | 6 | Daughter | — | Illinois |
| 49 | Edward Ind | 2 | Son | — | Illinois |
| 50 | Robert Emmet | 30 | Head | Checker | Illinois |
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)