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Mary Mccann — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Cook, Illinois
Our Model Tree links this Mary Mccann across the 1920 and 1930 US Censuses in Cook, Illinois (XGBoost, ~Confirmed) — first a daughter (b.~1919), then head of a 8-person household.
Age 11
b. ~1919
Female
Daughter
Born: Illinois
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Cook, Illinois |
| Surname | McCann |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Kentucky |
| Additional Details | |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1919 |
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.
8 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Marion Mccann | Other | — | 37 | ~1893 |
| Patrick Mccann | Head | — | 39 | ~1891 |
| Mary Mccann | Daughter | — | 11 | ~1919 |
| Joseph Mccann | Son | — | 16 | ~1914 |
| Peter Mccann | Son | — | 4 | ~1926 |
| Frances Mccann | Son | — | 13 | ~1917 |
| Robert Mccann | Son | — | 2 | ~1928 |
| William Mccann | Son | — | 14 | ~1916 |
Census Appearances
1920
Cook, Illinois
Daughter, age 1
Cook, Illinois · implied b. ~1919 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCann |
| 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 | Kentucky |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Daughter, age 11
Cook, Illinois · implied b. ~1919 — 8 household members
| Surname | McCann |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Kentucky |
| Can Read/Write | Yes |
| Veteran | No |
| 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 Mccann across 2 US Census years (1920 and 1930) in Cook, Illinois, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Mccann
Daughter · 1930 · age 11 · b. ~1919 · Illinois
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Sibling
Frances Mccann
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Mccann
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Mccann
Sibling · 1930 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Mccann
Sibling · 1930 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Peter Mccann
Sibling · 1930 · age 4
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
21 people indexed on this census page (ia:1930:illinoiscensus00reel444:0827)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Patrick J. Mccann | 39 | Head | Electrician | Illinois |
| 2 | Marion Mccann | 37 | Wife-H | — | Illinois |
| 3 | Joseph Mccann | 16 | Son | — | Illinois |
| 4 | William Mccann | 14 | Son | — | Illinois |
| 5 | Frances Mccann | 13 | Son | — | Illinois |
| 6 | Mary Mccann THIS PERSON | 11 | Daughter | — | Illinois |
| 7 | Peter Mccann | 4 | Son | — | Illinois |
| 8 | Robert Mccann | 2 | Son | — | Illinois |
| 9 | Thomas Mosselman | 44 | Head | Laborer | Holland |
| 10 | Gertrude Mosselman | 43 | Wife-H | — | Holland |
| 11 | Jacob Mosselman | 19 | Son | Filing Clerk | Illinois |
| 12 | George Mosselman | 18 | Son | Office Boy | Illinois |
| 13 | Lambert Mosselman | 14 | Son | — | Illinois |
| 14 | James Mosselman | 4 | Son | — | Illinois |
| 15 | Victor Soderberg | 63 | Head | Tailor | Sweden |
| 16 | Alma Soderberg | 56 | Wife-H | — | Sweden |
| 17 | Ralph Soderberg | 32 | Son | Banker | Illinois |
| 18 | William J. Antonopulos | 45 | Head | Driver | Greece |
| 19 | Constantina Antonopulos | 39 | Wife-H | — | Greece |
| 20 | Gerald Down | 27 | Head | Clerk | Illinois |
| 21 | Martha Down | 47 | Wife-H | — | Illinois |
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)