JC
James Curtis — 1940 US Census Record
Model Tree available1940 United States Federal Census · Denver-County, Colorado
Our Model Tree links this James Curtis across the 1920, 1930 and 1940 US Censuses in Denver-County, Colorado (XGBoost, ~Confirmed), with identified parents Ida — first a head (b.~1893), then head of a 5-person household.
Age 47
b. ~1893
Male
Head
Born: Colorado
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Denver-County, Colorado |
| Surname | Curtis |
| Given Name | James W |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Colorado |
| 1935 Residence (City) | Denver City and County |
| 1935 Residence (County) | Denver |
| Additional Details | |
| Occupation | Manager |
| Industry | Paint Manufac. |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 2520 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
| Occupation | Manager |
| Township / Ward | Denver City And County |
| Est. Birth Year | ~1893 |
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 James | Age | Birth yr |
|---|---|---|---|---|
| Charlene Curtis | Daughter | — | 13 | ~1927 |
| Shirley Curtis | Daughter | — | 8 | ~1932 |
| James Curtis | Son | — | 18 | ~1922 |
| Lena Curtis | Spouse | — | 40 | ~1900 |
| James Curtis | Head | — | 47 | ~1893 |
Census Appearances
1920
Denver, Colorado
Son, age 25
Denver, Colorado · implied b. ~1895 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Curtis |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | Auto Painter |
| Industry | Paint Factory |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1930
Denver, Colorado
Head, age 36
Denver, Colorado · implied b. ~1894 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Curtis |
| Given Name | James W. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Colorado |
| Age at First Marriage | 27 |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | Supt. (Paint) |
| Industry | Paint Est. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 5600 |
| Radio Set | R |
| Veteran | Yes |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1940
Denver-County, Colorado
Head, age 47
Denver-County, Colorado · implied b. ~1893 — 5 household members
| Surname | Curtis |
| Given Name | James W |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Colorado |
| 1935 Residence (City) | Denver City and County |
| 1935 Residence (County) | Denver |
| Occupation | Manager |
| Industry | Paint Manufac. |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 2520 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| 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 James Curtis across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Ida Curtis (~0.92 confidence). The pedigree spans 1 generation with 1 identified ancestor.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Ida Curtis
b. ~1869
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Curtis
Head · 1940 · age 47 · b. ~1893 · Colorado
★ 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 — 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-t0627-00493-00587)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Margaret M Russell | 51 | Wife | — | Colorado |
| 2 | Margaret M Russell | 15 | Daughter | — | Colorado |
| 3 | James E Babb | 66 | Head | Laborer | Illinois |
| 4 | Laura M Babb | 65 | Wife | — | Illinois |
| 5 | Harry L Larkin | 30 | Head | Attendant | Colorado |
| 6 | Christine C Larkin | 23 | Wife | Packer | Colorado |
| 7 | James W Curtis THIS PERSON | 47 | Head | Manager | Colorado |
| 8 | Lena G Curtis | 40 | Wife | — | Colorado |
| 9 | James P Curtis | 18 | Son | — | Colorado |
| 10 | Charlene E Curtis | 13 | Daughter | — | Colorado |
| 11 | Shirley Ann Curtis | 8 | Daughter | — | Colorado |
| 12 | Francis A Reed | 45 | Head | Foreman Warehouse | Colorado |
| 13 | Stella Reed | 34 | Wife | Stenographer | Texas |
| 14 | Frances Reed | 18 | Daughter | Saleslady | Colorado |
| 15 | Robert Reed | 14 | Son | — | Colorado |
| 16 | Robert L Eefaw | 29 | Head | Postal Clerk | Iowa |
| 17 | Maxine V Eefaw | 26 | Wife | — | Colorado |
| 18 | Billy Eefaw | 7 | Son | — | Colorado |
| 19 | Sally Eefaw | 3 | Daughter | — | Colorado |
| 21 | Minnie Schweiger | 63 | Head | Spotter | Colorado |
| 22 | Jack J Riner | 37 | Head | Laborer | Minnesota |
| 23 | Irene Riner | 50 | Wife | Seamstress | Kansas |
| 24 | Myrne Riner | 9 | Daughter | — | Colorado |
| 25 | Daniel S Boren | 54 | Head | Laborer | Missouri |
| 26 | Amy Boren | 55 | Wife | — | France |
| 27 | Miguel A Lobato | 53 | Head | Laborer | Colorado |
| 28 | Manuelita Lobato | 33 | Wife | — | Colorado |
| 29 | Silas Loveall | 60 | Head | Laborer | Washington |
| 30 | Etta Loveall | 48 | Wife | — | Kansas |
| 31 | Marion Lee Loveall | 20 | Son | New Worker | Iowa |
| 32 | Logan Rollins | 28 | Nephew | — | Kansas |
| 33 | T. J. Cullen | 36 | Head | Trench Machine Operator | Colorado |
| 34 | Lucille Cullen | 34 | Wife | Stenographer | Illinois |
| 35 | Donald Cullen | 11 | Son | — | Colorado |
| 36 | Dorothy Cullen | 9 | Daughter | — | Colorado |
| 37 | Joan Cullen | 7 | Daughter | — | Colorado |
| 38 | Jennie Cullen | 4 | Son | — | Colorado |
| 39 | Brand J Lambert | 42 | Head | Mechanic | Colorado |
| 40 | Angeline Lambert | 43 | Wife | — | Illinois |
Pedigree Summary
James
Gen 1 · 1 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)