JL
James Lee — 1940 US Census Record
Model Tree available1940 United States Federal Census · Denver-County, Colorado
Our Model Tree links this James Lee across the 1920, 1930 and 1940 US Censuses in Denver-County, Colorado (XGBoost, ~Confirmed), with identified parents Charles & Sarah — first a head (b.~1906), then head of a 3-person household.
Age 34
b. ~1906
Male
Head
Born: England
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Denver-County, Colorado |
| Surname | Lee |
| Given Name | James |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | England |
| 1935 Residence (City) | Denver City |
| 1935 Residence (County) | Denver |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Lens Grinder |
| Industry | Columbian Optical Co. |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 1140 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth Country | England |
| Birthplace (normalized) | england |
| Occupation | Lens Grinder |
| Township / Ward | Denver City |
| Est. Birth Year | ~1906 |
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 James | Age | Birth yr |
|---|---|---|---|---|
| James Lee | Head | — | 34 | ~1906 |
| James Lee | Son | — | 17 | ~1923 |
| Bertha Lee | Spouse | — | 36 | ~1904 |
Census Appearances
1920
Denver, Colorado
Son, age 18
Denver, Colorado · implied b. ~1902 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lee |
| Given Name | James |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | England |
| Year of Immigration | 1905 |
| Naturalization Status | First papers filed |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Occupation | laborer |
| Industry | tire factory |
| Class of Worker | W |
| Can Read | No |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth Country | England |
| Birthplace (normalized) | england |
1930
Denver, Colorado
Head, age 28
Denver, Colorado · implied b. ~1902 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lee |
| Given Name | James W. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | England |
| Naturalization Status | Naturalized |
| Year of Immigration | 1903 |
| Age at First Marriage | 17 |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Occupation | Truck Driver |
| Industry | Lumber Co |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Home Value / Rent | 23.00 |
| Radio Set | R |
| Birth Country | England |
| Birthplace (normalized) | england |
1940
Denver-County, Colorado
Head, age 34
Denver-County, Colorado · implied b. ~1906 — 3 household members
| Surname | Lee |
| Given Name | James |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | England |
| 1935 Residence (City) | Denver City |
| 1935 Residence (County) | Denver |
| Naturalization Status | Naturalized |
| Occupation | Lens Grinder |
| Industry | Columbian Optical Co. |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 1140 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| 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 James Lee across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Charles Lee (~0.92 confidence) and mother Sarah Lee (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Charles Lee
b. ~1877
Source father
● Household
· direct · ~0.92
Mother
Sarah Lee
b. ~1881
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Lee
Head · 1940 · age 34 · b. ~1906 · 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-t0627-00485-00940)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Alice M. Craig | 51 | wife | — | Same place |
| 2 | Claudia Craig | 21 | daughter | Wrapper | Nebraska |
| 3 | Roberta Craig | 16 | daughter | — | Colorado |
| 4 | William Stickley | 39 | head | Laborer | Missouri |
| 5 | Zella Stickley | 34 | wife | — | Minnesota |
| 6 | Willis Stickley | 11 | son | — | Colorado |
| 7 | Morton Cole | 60 | head | Blacksmith | Colorado |
| 8 | Minnie Cole | 51 | wife | — | Missouri |
| 9 | Jennie Tucker | 51 | head | Housework | Colorado |
| 10 | Elmer Tucker | 20 | son | New Worker | Colorado |
| 11 | Anna Mae Tucker | 19 | daughter | Clerk | Colorado |
| 12 | Hortence M. Kennedy | 32 | head | — | Texas |
| 13 | June Kennedy | 14 | daughter | — | Colorado |
| 14 | Rosa Jones | 73 | head | — | West Virginia |
| 15 | George M. Simon | 76 | head | — | Iowa |
| 16 | John Arnold | 57 | head | Laborer | Illinois |
| 17 | Lydia Arnold | 55 | wife | — | South Dakota |
| 18 | Louise Cawalski | 85 | mother-in-law | — | Switzerland |
| 19 | David F. Miller | 33 | head | Laborer | Colorado |
| 20 | Cecelia Miller | 32 | wife | — | Colorado |
| 21 | David E. Miller | 5 | son | — | Colorado |
| 22 | Marion Snyder | 72 | head | — | Illinois |
| 23 | Anna Townley | 70 | head | — | Pennsylvania |
| 24 | Charles Lee | 62 | head | — | England |
| 25 | Sarah Lee | 58 | wife | — | England |
| 26 | Dwight English | 30 | son-in-law | Salesman | Nebraska |
| 27 | Cora V. English | 25 | daughter | Saleslady | Colorado |
| 28 | Ronald Dale | 25 | lodger | Salesman | So Dakota |
| 29 | James Lee THIS PERSON | 34 | head | Lens Grinder | England |
| 30 | Bertha Lee | 36 | wife | — | Colorado |
| 31 | James Jr. Lee | 17 | son | — | Colorado |
| 32 | James T. Powell | 64 | head | Blacksmith | Missouri |
| 33 | Minnie Powell | 56 | wife | — | Iowa |
| 34 | Clifford Tupgren | 23 | head | Press Room Helper | Colorado |
| 35 | Esther Tupgren | 20 | wife | — | Colorado |
| 36 | Judith Tupgren | 0 | daughter | — | Colorado |
| 37 | Henry Schilling | 49 | head | Contractor | Iowa |
| 38 | Alda Gannon | 44 | lodger | — | Missouri |
| 39 | Garvin Gannon | 18 | son | Usher | Missouri |
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)