JJ
Julius Johnson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Denver-County, Colorado
Our Model Tree links this Julius Johnson across the 1920, 1930 and 1940 US Censuses in Denver-County, Colorado (XGBoost, ~Confirmed), with identified parents Christina & Christina — first a son (b.~1904), then head of a 4-person household.
Age 36
b. ~1904
Male
Son
Born: Colorado
Divorced
1940 Census Record Details
| Census Year | 1940 |
| Location | Denver-County, Colorado |
| Surname | Johnson |
| Given Name | Julius F. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Divorced |
| Birthplace | Colorado |
| 1935 Residence (City) | Denver City & County |
| 1935 Residence (County) | Denver |
| Additional Details | |
| Occupation | Attendant |
| Industry | Gas & Oil Station |
| Class of Worker | PW |
| Hours Worked | 80 |
| Income (1939) | 950 |
| Highest Grade | G 8 |
| 1935 Residence | Same House |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
| Occupation | Attendant |
| Township / Ward | Denver City County |
| Est. Birth Year | ~1904 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Julius | Age | Birth yr |
|---|---|---|---|---|
| Earl Johnson | Son | — | 40 | ~1900 |
| Christina Johnson | Head | — | 72 | ~1868 |
| Julius Johnson | Son | — | 36 | ~1904 |
| Elsie Johnson | Daughter | — | 41 | ~1899 |
Census Appearances
1920
Denver, Colorado
Son, age 15
Denver, Colorado · implied b. ~1905 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Julius |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1930
Denver, Colorado
Son, age 25
Denver, Colorado · implied b. ~1905 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Julius S |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Grocery Clerk |
| Industry | Groceries |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1940
Denver-County, Colorado
Son, age 36
Denver-County, Colorado · implied b. ~1904 — 4 household members
| Surname | Johnson |
| Given Name | Julius F. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Divorced |
| Birthplace | Colorado |
| 1935 Residence (City) | Denver City & County |
| 1935 Residence (County) | Denver |
| Occupation | Attendant |
| Industry | Gas & Oil Station |
| Class of Worker | PW |
| Hours Worked | 80 |
| Income (1939) | 950 |
| Highest Grade | G 8 |
| 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 Julius Johnson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Christina Johnson (~0.92 confidence) and mother Christina Johnson (~0.92 confidence) and mother Christina Johnson (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Christina Johnson
b. ~1868
Source mother
● Household
· direct · ~0.92
Mother
Christina Johnson
b. ~1868
Source mother
● Household
· direct · ~0.92
Mother
Christina Johnson
b. ~1868
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Julius Johnson
Son · 1940 · age 36 · b. ~1904 · Colorado
★ You are viewing this record
Sibling
Elsie Johnson
Sibling · 1940 · age 41
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Earl Johnson
Sibling · 1940 · age 40
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
39 people indexed on this census page (nara:1940:m-t0627-00484-00154)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Alvan G. Fox | 11 | Son | — | Colorado |
| 42 | Mildred L. Fox | 8 | Daughter | — | Colorado |
| 43 | Franklin W. Fox | 7 | Son | — | Colorado |
| 44 | Mina E. Fox | 6 | Daughter | — | Colorado |
| 45 | Harvey C. Landrum | 42 | Head | — | Mississippi |
| 46 | Elsie B. Landrum | 42 | Wife | Furnish Clerk | Minnesota |
| 47 | John H. Landrum | 12 | Son | — | Colorado |
| 48 | Inez Ann Landrum | 8 | Daughter | — | Colorado |
| 49 | James J. O'Hare | 33 | Head | Plasterer | N. Dakota |
| 50 | Maria O'Hare | 32 | Wife | — | Wisconsin |
| 51 | James D. Quinlan | 51 | Head | Plumber | Colorado |
| 52 | Gertrude E. Quinlan | 50 | Wife | — | Connecticut |
| 53 | Harold E. Quinlan | 25 | Son | Shipping Clerk | Colorado |
| 54 | James R. Quinlan | 22 | Son | Office Clerk | Colorado |
| 55 | Richard Quinlan | 13 | Son | — | Colorado |
| 56 | Katherine C. Quinlan | 10 | Daughter | — | Colorado |
| 57 | Thomas T. G. Anastou | 50 | Head | Waiter | Greece |
| 58 | Gladys A. Anastou | 42 | Wife | — | Kansas |
| 59 | Vincent D. Anastou | 14 | Son | — | Colorado |
| 60 | Johanna Olson | 75 | Head | Janitress | Sweden |
| 61 | Marguerite Olson | 83 | Sister | — | Sweden |
| 62 | Christina Johnson | 72 | Head | — | Sweden |
| 63 | Earl A. Johnson | 40 | Son | Stock Clerk | Colorado |
| 64 | Elsie E. Johnson | 41 | Daughter | Bookkeeper | Colorado |
| 65 | Julius F. Johnson THIS PERSON | 36 | Son | Attendant | Colorado |
| 66 | Merle E. Nantz | 37 | Head | Engineer | Illinois |
| 67 | Maria L. Nantz | 32 | Wife | — | Pennsylvania |
| 68 | Charlie Bartholomew | 70 | Head | — | Italy |
| 69 | Mary Bartholomew | 57 | Wife | — | Italy |
| 70 | Albert Monroe | 45 | Son-in-law | Car Repair Man | Italy |
| 71 | Mary Monroe | 36 | Daughter | — | Maryland |
| 72 | George Raymond Monroe | 19 | Grand-son | — | Colorado |
| 73 | Elsie Edith Monroe | 17 | Grand-dau | — | Colorado |
| 74 | Herman Ernest Monroe | 15 | Grand-son | — | Colorado |
| 75 | Bernard Earl Monroe | 4 | Grand-son | — | Colorado |
| 76 | E. W. Curnow | 41 | Head | Commercial Technician | Colorado |
| 77 | Olive M. Curnow | 42 | Wife | — | Kansas |
| 78 | Viola S. Miles | 25 | Step-daughter | Waitress | Kansas |
| 79 | Dean D. Carlson | 19 | Boarder | Electric Welder | Kansas |
Pedigree Summary
Julius + 2 siblings
Gen 1 · 3 parents
~0.92
Max depth 4 (1900–1950 window)
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)