WD
William Douglas — 1940 US Census Record
Model Tree available1940 United States Federal Census · Denver-County, Colorado
Our Model Tree links this William Douglas across the 1920, 1930 and 1940 US Censuses in Denver-County, Colorado (XGBoost, ~Confirmed), with identified parents Benjamin & Beckman — first a head (b.~1899), then head of a 3-person household.
Age 41
b. ~1899
Male
Head
Born: Colorado
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Denver-County, Colorado |
| Surname | Douglas |
| Given Name | William R. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Colorado |
| 1935 Residence (City) | Denver City and County |
| 1935 Residence (County) | Denver |
| Additional Details | |
| Occupation | Salesman |
| Industry | Wholesale Auto Parts |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 2000 |
| Highest Grade | H-4 |
| 1935 Residence | Same Place |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
| Occupation | Salesman |
| Township / Ward | Denver City And County |
| Est. Birth Year | ~1899 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Sally Douglas | Daughter | — | 7 | ~1933 |
| William Douglas | Head | — | 41 | ~1899 |
| Marguerite Douglas | Spouse | — | 36 | ~1904 |
Census Appearances
1920
Denver, Colorado
Son, age 22
Denver, Colorado · implied b. ~1898 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Douglas |
| Given Name | William L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Texas |
| Mother's Birthplace | Kansas |
| Occupation | Commercial traveler |
| Industry | Stove company |
| 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
Son, age 32
Denver, Colorado · implied b. ~1898 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Douglas |
| Given Name | William L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Texas |
| Mother's Birthplace | Kansas |
| Occupation | Salesman |
| Industry | Lubricating Oil |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | Yes |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1940
Denver-County, Colorado
Head, age 41
Denver-County, Colorado · implied b. ~1899 — 3 household members
| Surname | Douglas |
| Given Name | William R. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Colorado |
| 1935 Residence (City) | Denver City and County |
| 1935 Residence (County) | Denver |
| Occupation | Salesman |
| Industry | Wholesale Auto Parts |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 2000 |
| Highest Grade | H-4 |
| 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 William Douglas across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Benjamin Douglas (~0.92 confidence) and father Beckman Douglas (~0.92 confidence) and mother Flora Douglas (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Benjamin Douglas
b. ~1867
Source father
● Household
· direct · ~0.92
Father
Beckman Douglas
b. ~1875
Source father
● Household
· direct · ~0.92
Mother
Flora Douglas
b. ~1876
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Douglas
Head · 1940 · age 41 · b. ~1899 · 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
40 people indexed on this census page (nara:1940:m-t0627-00489-00186)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Margaret Barney | 17 | Daughter | — | Colorado |
| 42 | William Barney | 10 | Son | — | Colorado |
| 43 | Tibb Dorley | 32 | Sister-in-law | Assistant | Missouri |
| 44 | Henry G. Jobes | 43 | Head | Assistant Sup'T Of Transportation | New Jersey |
| 45 | Florence F. Jobes | 51 | Wife | — | Illinois |
| 46 | Edward Jobes | 14 | Son | — | Colorado |
| 47 | Harold La Pere | 30 | Head | Superintendent | Ohio |
| 48 | Jeannette M. La Pere | 31 | Wife | Stenographer | Ohio |
| 49 | Gerald Hughart | 26 | Head | Cashier | Colorado |
| 50 | Janice Hughart | 23 | Wife | — | Illinois |
| 51 | Sandra Hughart | 2 | Daughter | — | Colorado |
| 52 | Arthur Kenneth Finch | 30 | Head | Secretary Treas | Colorado |
| 53 | Margaret-Ad Finch | 30 | Wife | — | Washington |
| 54 | James F. Finch | 5 | Son | — | Colorado |
| 55 | William R. Douglas THIS PERSON | 41 | Head | Salesman | Colorado |
| 56 | Marguerite Douglas | 36 | Wife | — | Colorado |
| 57 | Sally Sue Douglas | 7 | Daughter | — | Colorado |
| 58 | Void | None | — | — | — |
| 59 | Void | None | — | — | — |
| 60 | W. Alan Trarnich | 31 | Head | Salesman | Colorado |
| 61 | Phyllis Trarnich | 28 | Wife | — | Colorado |
| 62 | William Jr. Trarnich | 4 | Son | — | Colorado |
| 63 | Margaret Ruth Trarnich | 2 | Daughter | — | Colorado |
| 64 | Claudia Schreiner | 22 | Maid | Maid | Nebraska |
| 65 | Robert C. Ayers | 40 | Head | Attorney | Montana |
| 66 | Louise R. Ayers | 34 | Wife | — | Virginia |
| 67 | Ida Pauline Taylor | 56 | Head | — | Colorado |
| 68 | Maxine E. Taylor | 24 | Daughter | Secretary | Mississippi |
| 69 | Alberta M. Taylor | 22 | Daughter | Billing Clerk | Colorado |
| 70 | — | None | — | — | — |
| 71 | Philip Geller | 50 | Head | Cleaner | Austria |
| 72 | Rene Geller | 49 | Wife | — | Russia |
| 73 | Julius S. Geller | 25 | Son | Postal Clerk | Colorado |
| 74 | Lenore S. Geller | 21 | Daughter | — | Colorado |
| 75 | James Boyd Rogers | 45 | Head | Cottage Camp Proprietor | Nebraska |
| 76 | Gertrude M. Rogers | 41 | Wife | — | Iowa |
| 77 | James Boyd Jr. Rogers | 17 | Son | — | Colorado |
| 78 | Joyce D. Rogers | 14 | Daughter | — | Colorado |
| 79 | Richard Rogers | 8 | Son | — | Iowa |
| 80 | William Ron Rogers | 6 | Son | — | Colorado |
Pedigree Summary
William
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)