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Mary Barron — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Mary Barron across the 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1907), then head of a 9-person household.
Age 33
b. ~1907
Female
Spouse
Born: Irish Free State
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Barron |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Irish Free State |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birthplace (normalized) | irish free state |
| Township / Ward | Chicago |
| Est. Birth Year | ~1907 |
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 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Barbara Tautkus | Daughter | — | 3 | ~1937 |
| Mary Mehoney | Other | — | 22 | ~1918 |
| Robert Barron | Head | — | 50 | ~1890 |
| Rose Barron | Daughter | — | 1 | ~1939 |
| Patricia Tautkus | Daughter | — | 5 | ~1935 |
| Clements Tautkus | Other | — | 30 | ~1910 |
| Robert Barron | Son | — | 1 | ~1939 |
| Mary Barron | Spouse | — | 33 | ~1907 |
| Agnes Tautkus | Spouse | — | 28 | ~1912 |
Census Appearances
1930
Cook, Illinois
Spouse, age 25
Cook, Illinois · implied b. ~1905 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Barron |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Married |
| Birthplace | Irish Free State |
| Naturalization Status | Naturalized |
| Year of Immigration | 1924 |
| Age at First Marriage | 21 |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Occupation | none |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birthplace (normalized) | irish free state |
1940
Cook-County, Illinois
Spouse, age 33
Cook-County, Illinois · implied b. ~1907 — 9 household members
| Surname | Barron |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Irish Free State |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birthplace (normalized) | irish free state |
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 Barron across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Barron
Spouse · 1940 · age 33 · b. ~1907 · Illinois
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Cook-County, Illinois
Open full size
1940 US Federal Census — Cook-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00992-00532)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Carl Unrath | 39 | Head | Carpenter | Illinois |
| 2 | Helen O. Unrath | 37 | Wife | — | Illinois |
| 3 | Lois Unrath | 15 | Daughter | — | Illinois |
| 4 | Henry Unrath | 10 | Son | — | Illinois |
| 5 | Thora Unrath | 8 | Daughter | — | Illinois |
| 6 | June Unrath | 7 | Daughter | — | Illinois |
| 7 | Ruth Unrath | 6 | Daughter | — | Illinois |
| 8 | Donald Unrath | 4 | Son | — | Illinois |
| 9 | Ralph Unrath | 2 | Son | — | Illinois |
| 10 | Dian Unrath | 1 | Daughter | — | Illinois |
| 11 | Henry G. Sandhoff | 49 | Head | Truck Driver | Illinois |
| 12 | Elizabeth Sandhoff | 55 | Wife | — | Illinois |
| 13 | Fred Nelson | 55 | Boarder | Teamster | Illinois |
| 14 | George A. Van Dorpe | 45 | Head | Traffic Inspector | Illinois |
| 15 | Florence Van Dorpe | 43 | Wife | — | Illinois |
| 16 | Helen Van Dorpe | 21 | Daughter | Office Clerk | Illinois |
| 17 | Florence Van Dorpe | 15 | Daughter | — | Illinois |
| 18 | George Jr. Van Dorpe | 8 | Son | — | Illinois |
| 19 | Perrill Van Dorpe | 5 | Son | — | Illinois |
| 20 | Robert Barron | 50 | Head | Repair Man | Irish Free State |
| 21 | Mary Barron THIS PERSON | 33 | Wife | — | Irish Free State |
| 22 | Robert Barron | 1 | Son | — | Illinois |
| 23 | Rose Mary Barron | 1 | Daughter | — | Illinois |
| 24 | Mary Mehoney | 22 | Niece | Typist | Illinois |
| 25 | Clements Tautkus | 30 | Bro in law | Die Setter | Illinois |
| 26 | Agnes Tautkus | 28 | Wife | — | Irish Free State |
| 27 | Patricia Tautkus | 5 | Daughter | — | Illinois |
| 28 | Barbara Tautkus | 3 | Daughter | — | Illinois |
| 29 | Sam Riforgiato | 47 | Head | Shipping Clerk | New York |
| 30 | Angelina Riforgiato | 41 | Wife | — | Illinois |
| 31 | Steve Riforgiato | 19 | Son | — | Illinois |
| 32 | George Riforgiato | 14 | Son | — | Illinois |
| 33 | Henry Holy | 40 | Head | Barber | Roumania |
| 34 | Gisela Holy | 32 | Wife | — | Illinois |
| 35 | Henry Jr. Holy | 14 | Son | — | Illinois |
| 36 | Catherine Holy | 12 | Daughter | — | Illinois |
| 37 | Peter Holy | 11 | Son | — | Illinois |
| 38 | Marion Holy | 6 | Daughter | — | Illinois |
| 39 | Irmar Johnson | 56 | Head | Laborer | Norway |
| 40 | Merit Johnson | 56 | Wife | — | Sweden |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 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)