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James Simmons — 1940 US Census Record
Model Tree available1940 United States Federal Census · Denver-County, Colorado
Our Model Tree links this James Simmons across the 1920, 1930 and 1940 US Censuses in Denver-County, Colorado (XGBoost, ~Confirmed), with identified parents John & Amelia — first a head (b.~1897), then head of a 6-person household.
Age 43
b. ~1897
Male
Head
Born: Colorado
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Denver-County, Colorado |
| Surname | Simmons |
| Given Name | James R. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Colorado |
| 1935 Residence (City) | Denver City |
| 1935 Residence (County) | Denver |
| Additional Details | |
| Occupation | Baker |
| Industry | Bakery |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1855 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
| Occupation | Baker |
| Township / Ward | Denver City |
| Est. Birth Year | ~1897 |
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 James | Age | Birth yr |
|---|---|---|---|---|
| Vivian Woyles | Daughter | — | 14 | ~1926 |
| Virginia Woyles | Daughter | — | 13 | ~1927 |
| Catherine Woyles | Daughter | — | 17 | ~1923 |
| James Simmons | Head | — | 43 | ~1897 |
| Clifford Woyles | Son | — | 9 | ~1931 |
| Lucille Simmons | Spouse | — | 34 | ~1906 |
Census Appearances
1920
Denver, Colorado
Son, age 22
Denver, Colorado · implied b. ~1898 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Simmons |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Occupation | Boiler Maker |
| Industry | Railroad Shop |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1930
Denver, Colorado
Other, age 33
Denver, Colorado · implied b. ~1897 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Simmons |
| Given Name | James R. |
| Relationship to Head | Brother |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Occupation | Baker |
| Industry | Baking |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1940
Denver-County, Colorado
Head, age 43
Denver-County, Colorado · implied b. ~1897 — 6 household members
| Surname | Simmons |
| Given Name | James R. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Colorado |
| 1935 Residence (City) | Denver City |
| 1935 Residence (County) | Denver |
| Occupation | Baker |
| Industry | Bakery |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1855 |
| Highest Grade | No 7 |
| 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 Simmons across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Simmons (~0.92 confidence) and mother Amelia Simmons (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Simmons
b. ~1856
Source father
● Household
· direct · ~0.92
Mother
Amelia Simmons
b. ~1858
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Simmons
Head · 1940 · age 43 · b. ~1897 · 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-t0627-00485-00069)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John Gallagher | 45 | Head | Salesman | Montana |
| 2 | Emma Gallagher | 41 | Wife | Salesman | Colorado |
| 3 | Helen Gallagher | 21 | Daughter | Office Work | Colorado |
| 4 | Eva Benson | 27 | Lodger | Candy Worker | Colorado |
| 5 | Ilean Sage | 34 | Roomer | Beauty Operator | Mississippi |
| 6 | Arthur Jacobsen | 54 | Head | Shipyard Conductor | Iowa |
| 7 | Margaret Jacobsen | 51 | Wife | — | Missouri |
| 8 | Clinton Jacobsen | 22 | Son | Assistant Truck Driver | Colorado |
| 9 | Henry Ramer | 46 | Head | Operator | Nebraska |
| 10 | Mathilda Ramer | 44 | Wife | — | Ohio |
| 11 | Norma Ramer | 19 | Daughter | Office | Colorado |
| 12 | Wetter | 18 | Son | — | Colorado |
| 13 | William Whitehead | 40 | Head | Truck Driver | Texas |
| 14 | Opal Whitehead | 27 | Wife | — | Missouri |
| 15 | Harwyn Whitehead | 4 | Son | — | Colorado |
| 16 | Warlene Whitehead | 3 | Daughter | — | Colorado |
| 17 | John Whitehead | 2 | Daughter | — | Colorado |
| 18 | Ben M. Finley | 49 | Head | Welder | Nebraska |
| 19 | Alice Finley | 43 | Wife | — | Kansas |
| 20 | Maurice Johnson | 31 | Head | Truck Driver | Colorado |
| 21 | Gail Johnson | 28 | Wife | — | Pennsylvania |
| 22 | Robert Johnson | 7 | Son | — | Colorado |
| 23 | William Johnson | 3 | Son | — | Colorado |
| 24 | Annie Turner | 47 | Head | — | South Carolina |
| 25 | Carl R. Nitherson | 24 | Head | Beauty Operator | Colorado |
| 26 | Mary E. Nitherson | 25 | Wife | — | Colorado |
| 27 | Pearl Blair | 57 | Mother | Laundry Press Worker | Illinois |
| 28 | — | None | — | — | — |
| 29 | George Gergen | 62 | Head | Trucker | Lithuania |
| 30 | Ann Carlson | 34 | Daughter | Operator | Missouri |
| 31 | Helen Gergen | 30 | Daughter | Steno | Colorado |
| 32 | Bonnie Gergen | 27 | Daughter | Steno | Colorado |
| 33 | James R. Simmons THIS PERSON | 43 | Head | Baker | Colorado |
| 34 | Lucille Simmons | 34 | Wife | — | Missouri |
| 35 | Catherine Woyles | 17 | Daughter | — | Missouri |
| 36 | Vivian Woyles | 14 | Daughter | — | Missouri |
| 37 | Virginia Woyles | 13 | Daughter | — | Missouri |
| 38 | Clifford Woyles | 9 | Son | — | Missouri |
| 39 | Willard H. Cooper | 45 | Head | Clean Furnaces | Nebraska |
| 40 | Inez N. Cooper | 44 | Wife | — | Kansas |
Pedigree Summary
James
Gen 1 · 2 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)