MR
Mary Roche — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Mary Roche across the 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1890), then head of a 5-person household.
Age 50
b. ~1890
Female
Spouse
Born: Irish Free State
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Roche |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Irish Free State |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birthplace (normalized) | irish free state |
| Township / Ward | Chicago |
| Est. Birth Year | ~1890 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| James Roche | Head | — | 56 | ~1884 |
| John Roche | Son | — | 16 | ~1924 |
| James Roche | Son | — | 21 | ~1919 |
| Catherine Roche | Daughter | — | 19 | ~1921 |
| Mary Roche | Spouse | — | 50 | ~1890 |
Census Appearances
1930
Cook, Illinois
Other, age 38
Cook, Illinois · implied b. ~1892 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Roche |
| Given Name | Marguerite |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Irish Free State |
| Naturalization Status | Naturalized |
| Year of Immigration | 1912 |
| Age at First Marriage | 21 |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birthplace (normalized) | irish free state |
1940
Cook-County, Illinois
Spouse, age 50
Cook-County, Illinois · implied b. ~1890 — 5 household members
| Surname | Roche |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Irish Free State |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Income (1939) | 0 |
| 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 Roche across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Roche
Spouse · 1940 · age 50 · b. ~1890 · Illinois
★ You are viewing this record
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-t0627-00982-00328)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Nelda Dennis | 58 | Wife | — | Wisconsin |
| 2 | Romeo Berni | 36 | Head | Bartender | Italy |
| 3 | Rose Berni | 30 | Wife | — | Illinois |
| 4 | Lorraine Berni | 13 | Daughter | — | Illinois |
| 5 | Emil Gerani | 37 | Head | Chair Finisher | Italy |
| 6 | Irene Gerani | 34 | Wife | — | Italy |
| 7 | Elsie Gerani | 16 | Daughter | — | Illinois |
| 8 | Lorraine Gerani | 14 | Daughter | — | Illinois |
| 9 | Mary Malone | 68 | Head | — | Northern Ireland |
| 10 | James Malone | 46 | Son | Conductor | Illinois |
| 11 | Frank P. Hall | 47 | Head | Chef | Missouri |
| 12 | Bertha M. Hall | 43 | Wife | Waitress | Illinois |
| 13 | John J. Hayes | 60 | Head | Building Laborer | Illinois |
| 14 | Catherine Hayes | 63 | Wife | — | Irish Free State |
| 15 | Ella Hayes | 32 | Daughter | Telephone Operator | Illinois |
| 16 | Thomas Franklin | 71 | Head | Water Tender | Ohio |
| 17 | Mary Franklin | 70 | Wife | — | Free State |
| 18 | Anna Franklin | 37 | Daughter | Private Secretary | Illinois |
| 19 | Richard Kempf | 62 | Head | Bookkeeper | Germany |
| 20 | Margaret Kempf | 62 | Wife | — | Illinois |
| 21 | Richard L. Kempf | 36 | Son | Assembler | Alabama |
| 22 | Ann Kempf | 27 | Daughter-in-law | Power Machine Operator | Louisiana |
| 23 | Mary Jane Kempf | 4 | Granddaughter | — | Illinois |
| 24 | Bertha Kempf | 3 | Granddaughter | — | Illinois |
| 25 | Richard Kempf | 1 | Grandson | — | Illinois |
| 26 | Charles Proffitt | 40 | Head | Addressograph Operator | Tennessee |
| 27 | Anna Proffitt | 38 | Wife | — | Wisconsin |
| 28 | Leslie Proffitt | 0 | Son | — | Illinois |
| 29 | William Dews | 35 | Head | Foreman | England |
| 30 | Esther Dews | 33 | Wife | — | Illinois |
| 31 | Shirley Dews | 8 | Daughter | — | Illinois |
| 32 | James H. Dews | 1 | Son | — | Illinois |
| 33 | James Roche | 56 | Head | Trainman | Irish Free State |
| 34 | Mary Roche THIS PERSON | 50 | Wife | — | Irish Free State |
| 35 | James Roche | 21 | Son | Starter | Illinois |
| 36 | Catherine Roche | 19 | Daughter | — | Illinois |
| 37 | John Roche | 16 | Son | — | Illinois |
| 38 | Vincent Frank | 47 | Head | Clerk | Illinois |
| 39 | Caroline Frank | 45 | Wife | — | Illinois |
| 40 | Elinor Frank | 22 | Daughter | Binder | Illinois |
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)