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William Ross — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Denver-County, Colorado
Our Model Tree links this William Ross across the 1910, 1920, 1930 and 1940 US Censuses in Denver-County, Colorado (XGBoost, ~Confirmed) — first a head (b.~1884), then head of a 6-person household.
Age 56
b. ~1884
Male
Head
Born: England
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Denver-County, Colorado |
| Surname | Ross |
| Given Name | William J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | England |
| 1935 Residence (City) | Denver City |
| 1935 Residence (County) | Denver, City & County |
| Naturalization Status | Alien |
| Additional Details | |
| Occupation | Carpenter |
| Industry | Private Business |
| Class of Worker | OA |
| Hours Worked | 10 |
| Income (1939) | 300 |
| Highest Grade | No 4 |
| 1935 Residence | Same House |
| Birth Country | England |
| Birthplace (normalized) | england |
| Occupation | Carpenter |
| Township / Ward | Denver City |
| Est. Birth Year | ~1884 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Lucille Ross | Daughter | — | 23 | ~1917 |
| Florence Birkby | Daughter | — | 20 | ~1920 |
| William Ross | Head | — | 56 | ~1884 |
| Barbara Birkby | Other | — | 4 | ~1936 |
| Donald Ross | Son | — | 13 | ~1927 |
| Florence Ross | Spouse | — | 55 | ~1885 |
Census Appearances
1910
Denver, Colorado
Head, age 26
Denver, Colorado · implied b. ~1884 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ross |
| Given Name | William J |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | England |
| Years Married | 3 |
| Year of Immigration | 1900 |
| Naturalization Status | Alien |
| Father's Birthplace | Scotland |
| Mother's Birthplace | England |
| Occupation | Carpenter |
| Birth Country | England |
| Birthplace (normalized) | england |
1920
Denver, Colorado
Head, age 36
Denver, Colorado · implied b. ~1884 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ross |
| Given Name | William |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | England |
| Year of Immigration | 1906 |
| Naturalization Status | Alien |
| Father's Birthplace | Scotland |
| Mother's Birthplace | New York |
| Occupation | Carpenter |
| Industry | houses |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Birth Country | England |
| Birthplace (normalized) | england |
1930
Denver, Colorado
Head, age 45
Denver, Colorado · implied b. ~1885 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ross |
| Given Name | William J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | England |
| Naturalization Status | Alien |
| Year of Immigration | 1904 |
| Age at First Marriage | 32 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | New York |
| Occupation | Carpenter |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | O |
| Home Value / Rent | 2000 |
| Radio Set | R |
| Birth Country | England |
| Birthplace (normalized) | england |
1940
Denver-County, Colorado
Head, age 56
Denver-County, Colorado · implied b. ~1884 — 6 household members
| Surname | Ross |
| Given Name | William J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | England |
| 1935 Residence (City) | Denver City |
| 1935 Residence (County) | Denver, City & County |
| Naturalization Status | Alien |
| Occupation | Carpenter |
| Industry | Private Business |
| Class of Worker | OA |
| Hours Worked | 10 |
| Income (1939) | 300 |
| Highest Grade | No 4 |
| 1935 Residence | Same House |
| Birth Country | England |
| Birthplace (normalized) | england |
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 Ross across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Ross
Head · 1940 · age 56 · b. ~1884 · Colorado
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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-t0627-00487-00966)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | James Brownlee | 1 | Son | — | Colorado |
| 2 | William L. Crumb | 72 | Head | — | Iowa |
| 3 | Leon E. Crumb | 43 | Son | — | Wyoming |
| 4 | Vincent Winn | 23 | Head | — | Colorado |
| 5 | Maxine Ab. Winn | 19 | Wife | — | California |
| 6 | William J. Ross THIS PERSON | 56 | Head | Carpenter | England |
| 7 | Florence Ross | 55 | Wife | — | England |
| 8 | Lucille Ross | 23 | Daughter | — | Colorado |
| 9 | Florence Birkby | 20 | Daughter | Stock Marking | Colorado |
| 10 | Donald Ross | 13 | Son | — | Colorado |
| 11 | Barbara Jean Birkby | 4 | Grand Daughter | — | Colorado |
| 12 | George Gifford | 31 | Head | Grower | Colorado |
| 13 | Rose Gifford | 25 | Wife | Stock Marking | Colorado |
| 14 | Russell C. Blystone | 50 | Head | Brakeman | Ohio |
| 15 | Mary Blystone | 37 | Wife | — | Colorado |
| 16 | James Blystone | 14 | Son | — | Colorado |
| 17 | Ursula Blystone | 12 | Daughter | — | Colorado |
| 18 | Clara Post | 70 | Head | Operating Saleslady | Germany |
| 19 | Here Ends Block 7 And Begins Block 8 | None | — | — | — |
| 20 | Collie Smith | 55 | Head | Transport Driver | Kansas |
| 21 | Rose Anna Smith | 58 | Wife | — | Pennsylvania |
| 22 | John Collie Smith | 19 | Son | Delivery Man | Colorado |
| 23 | Rose Anna Smith | 17 | Daughter | — | Colorado |
| 24 | William Richard Smith | 15 | Son | — | Colorado |
| 25 | Robert Francis Smith | 14 | Son | — | Colorado |
| 26 | Rina Burkland | 66 | Head | Laundress | Sweden |
| 27 | Albert Kieser | 28 | Son-in-law | Laborer | Colorado |
| 28 | Alice Lillian Kieser | 27 | Daughter | — | Colorado |
| 29 | Robert Louis Kieser | 1 | Grandson | — | Colorado |
| 30 | George W. Fisher | 59 | Head | Pullman Conductor | Colorado |
| 31 | Maude V. Fisher | 60 | Wife | — | Illinois |
| 32 | Evelyn M. Brown | 26 | Daughter | Stenographer | Colorado |
| 33 | George Tate | 6 | Grandson | — | Colorado |
| 34 | John Lisle Warren | 64 | Head | — | Illinois |
| 35 | Hallie Warren | 44 | Wife | — | Mississippi |
| 36 | Florence Warren | 15 | Daughter | — | Colorado |
| 37 | Richard Willoughby | 31 | Head | Master Mechanic | Kentucky |
| 38 | Edith Willoughby | 28 | Wife | — | Oklahoma |
| 39 | Dicksie Willoughby | 9 | Daughter | — | Texas |
| 40 | Mildred Bingel | 49 | Head | Lodging House Oper. | Kansas |
Related Census Records
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)