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John Roche — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Denver-County, Colorado
Our Model Tree links this John Roche across the 1930 and 1940 US Censuses in Denver-County, Colorado (XGBoost, ~Confirmed) — first a son (b.~1917), then head of a 8-person household.
Age 23
b. ~1917
Male
Son
Born: Colorado
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Denver-County, Colorado |
| Surname | Roche |
| Given Name | John Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Colorado |
| 1935 Residence (City) | Denver city and county |
| 1935 Residence (County) | Denver |
| Additional Details | |
| Occupation | Assistant Manager |
| Industry | Ambulance Service |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 900 |
| Highest Grade | H-4 |
| 1935 Residence | Same house |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
| Occupation | Assistant Manager |
| Township / Ward | Denver City And County |
| Est. Birth Year | ~1917 |
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 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| William Roche | Son | — | 21 | ~1919 |
| John Roche | Son | — | 23 | ~1917 |
| William Roche | Head | — | 56 | ~1884 |
| Daniel Roche | Son | — | 18 | ~1922 |
| Anna Roche | Daughter | — | 22 | ~1918 |
| Thomas Brueckner | Other | — | 22 | ~1918 |
| Margaret Roche | Daughter | — | 19 | ~1921 |
| Albert Burlage | Other | — | 26 | ~1914 |
Census Appearances
1930
Denver, Colorado
Son, age 13
Denver, Colorado · implied b. ~1917 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Roche |
| Given Name | John J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Canada English |
| Can Read/Write | Yes |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1940
Denver-County, Colorado
Son, age 23
Denver-County, Colorado · implied b. ~1917 — 8 household members
| Surname | Roche |
| Given Name | John Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Colorado |
| 1935 Residence (City) | Denver city and county |
| 1935 Residence (County) | Denver |
| Occupation | Assistant Manager |
| Industry | Ambulance Service |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 900 |
| Highest Grade | H-4 |
| 1935 Residence | Same house |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
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 John Roche across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Roche
Son · 1940 · age 23 · b. ~1917 · Colorado
★ You are viewing this record
Sibling
Anna Roche
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Daniel Roche
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Roche
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Roche
Sibling · 1940 · age 19
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
1940 US Federal Census — Denver-County, Colorado
Open full size
1940 US Federal Census — Denver-County, Colorado
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00488-00774)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Calvin E. Wicks | 55 | Head | Salesman And Manager | Michigan |
| 2 | Bertha R. Wicks | 57 | Wife | — | Indiana |
| 3 | Mary E. Henderson | 23 | Lodger | Registered Nurse | Iowa |
| 4 | Lucille A. Dougherty | 28 | Lodger | Registered Nurse | Iowa |
| 5 | Amy Edward | 32 | Lodger | Comptometer Operator | Pennsylvania |
| 6 | Gladys M. Milburn | 33 | Lodger | Stenographer | Colorado |
| 7 | Hilda C. Morris | 43 | Head | Apartment Manager | Minnesota |
| 8 | Joseph A. At. Morris | 21 | Son | Student Worker | California |
| 9 | Beverly A. Morris | 17 | Daughter | Typist | Colorado |
| 10 | Cleone Perry | 26 | Head | Bookkeeper | Missouri |
| 11 | Eric Ristau | 25 | Head | Salesman | Kansas |
| 12 | Mildred L. Ristau | 27 | Wife | Practical Nurse | Nebraska |
| 13 | Bernard F. Tangney | 23 | Head | Mechanic | Oklahoma |
| 14 | Selma M. Tangney | 22 | Wife | — | Colorado |
| 15 | Helen Gottschalk | 31 | Head | Bookkeeper Stenographer | Nebraska |
| 16 | Marietta Gallagher | 45 | Head | — | Colorado |
| 17 | John Gallagher | 23 | Son | Meat Cutter | Colorado |
| 18 | Margaret Gallagher | 17 | Daughter | — | Colorado |
| 19 | Jennie L. Mccray | 24 | Head | Typist | Colorado |
| 20 | Ethel L. Lattin | 20 | Lodger | Clerical Clerk | Virginia |
| 21 | Joe M. Bland | 32 | Head | Manager Lunch Counter | Kansas |
| 22 | Rose M. Bland | 29 | Wife | — | Nebraska |
| 23 | Rosalie J. Bland | 0 | Daughter | — | Colorado |
| 24 | K. C. Lawyer | 35 | Head | Medical Doctor | Colorado |
| 25 | Elizabeth A. Lawyer | 35 | Wife | — | Colorado |
| 26 | Kenneth C. Lawyer | 10 | Son | — | Colorado |
| 27 | Robert Bruce Lawyer | 6 | Son | — | Colorado |
| 28 | Patricia Ann Lawyer | 3 | Daughter | — | Colorado |
| 29 | Frieda Fagler | 40 | Maid | Maid | Nebraska |
| 30 | Doris F. Dille | 34 | Lodger | Dietitian | Indiana |
| 31 | Mary Dille | 39 | Lodger | Laboratory Technician | Ohio |
| 32 | Loretta Hamilton | 39 | Lodger | Bookkeeper | England |
| 33 | William F. Roche | 56 | Head | Manager | Massachusetts |
| 34 | John Joseph Roche THIS PERSON | 23 | Son | Assistant Manager | Colorado |
| 35 | Anna Catherine Roche | 22 | Daughter | Secretary | Colorado |
| 36 | William J. Jr. Roche | 21 | Son | — | Colorado |
| 37 | Margaret Mary Roche | 19 | Daughter | — | Colorado |
| 38 | Daniel Maurice Roche | 18 | Son | — | Colorado |
| 39 | Albert H. Burlage | 26 | Lodger | Driver | Iowa |
| 40 | Thomas P. Brueckner | 22 | Lodger | Driver | Nebraska |
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)