ML
Mary Lee — 1940 US Census Record
Model Tree available1940 United States Federal Census · Weld-County, Colorado
Our Model Tree links this Mary Lee across the 1920, 1930 and 1940 US Censuses in Weld-County, Colorado (XGBoost, ~Confirmed), with identified parents Frank & Zoma — first a daughter (b.~1919), then head of a 3-person household.
Age 21
b. ~1919
Female
Daughter
Born: Colorado
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Weld-County, Colorado |
| Surname | Lee |
| Given Name | Mary Ellen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Colorado |
| 1935 Residence (City) | Greeley |
| 1935 Residence (County) | Weld County |
| Additional Details | |
| Occupation | Cashier |
| Industry | Skating Rink |
| Class of Worker | PW |
| Hours Worked | 32 |
| Income (1939) | 210 |
| Highest Grade | C-3 |
| 1935 Residence | Same place |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
| Occupation | Cashier |
| Township / Ward | Greeley |
| Est. Birth Year | ~1919 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Lee | Daughter | — | 21 | ~1919 |
| Frank Lee | Head | — | 61 | ~1879 |
| Zoma Lee | Spouse | — | 56 | ~1884 |
Census Appearances
1920
Weld, Colorado
Daughter, age
Weld, Colorado · implied b. ~1920 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lee |
| Given Name | Mary Ellen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Kansas |
| Mother's Birthplace | Oklahoma |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1930
Weld, Colorado
Daughter, age 11
Weld, Colorado · implied b. ~1919 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lee |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Kansas |
| Mother's Birthplace | Oklahoma |
| Can Read/Write | Yes |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1940
Weld-County, Colorado
Daughter, age 21
Weld-County, Colorado · implied b. ~1919 — 3 household members
| Surname | Lee |
| Given Name | Mary Ellen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Colorado |
| 1935 Residence (City) | Greeley |
| 1935 Residence (County) | Weld County |
| Occupation | Cashier |
| Industry | Skating Rink |
| Class of Worker | PW |
| Hours Worked | 32 |
| Income (1939) | 210 |
| Highest Grade | C-3 |
| 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 Mary Lee across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Frank Lee (~0.92 confidence) and mother Zoma Lee (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Frank Lee
b. ~1879
Source father
● Household
· direct · ~0.92
Mother
Zoma Lee
b. ~1884
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Lee
Daughter · 1940 · age 21 · b. ~1919 · 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 — Weld-County, Colorado
Open full size
1940 US Federal Census — Weld-County, Colorado
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00482-01123)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Russell Roper | 49 | Head | Manager | Nebraska |
| 2 | Lenore Roper | 47 | Wife | — | Minnesota |
| 3 | Frank Lee | 61 | Head | Manager | Kansas |
| 4 | Zoma Lee | 56 | Wife | — | Oklahoma |
| 5 | Mary Ellen Lee THIS PERSON | 21 | Daughter | Cashier | Colorado |
| 6 | W. D. Likes | 75 | Head | Farmer | Iowa |
| 7 | Olive L. Likes | 70 | Wife | — | Illinois |
| 8 | Louis Dinner | 47 | Head | Buyer | Poland |
| 9 | Ida Dinner | 50 | Wife | — | Poland |
| 10 | Ethel Dinner | 25 | Daughter | — | New York |
| 11 | Frank Dinner | 27 | Son | Secretary | Colorado |
| 12 | Sidney Dinner | 21 | Son | — | Colorado |
| 13 | Albert Dinner | 14 | Son | — | Colorado |
| 14 | Sam Segar | 26 | Boarder | Salesman | Colorado |
| 15 | Nelson Dinner | 12 | Son | — | Colorado |
| 16 | Michael Segar | 3 | Grandson | — | Colorado |
| 17 | Ernest B. Payne | 50 | Head | Salesman | Ohio |
| 18 | Aimee Payne | 47 | Wife | — | Nebraska |
| 19 | Ernest Jr. Payne | 19 | Son | — | New Mexico |
| 20 | Patsy Payne | 17 | Daughter | — | New Mexico |
| 21 | Roger A. Payne | 9 | Son | — | Colorado |
| 22 | Albert L. Clark | 29 | Head | Foreman Trucking | Colorado |
| 23 | Geraldine Clark | 27 | Wife | Demonstrator | Texas |
| 24 | Lloyd Hurley Davis | 32 | Lodger | Bookkeeper | Iowa |
| 25 | Nancy Thompson | 6 | Daughter | — | Colorado |
| 26 | Julia L. Thompson | 4 | Daughter | — | Illinois |
| 27 | J. A. Clark | 62 | Head | Painting | Iowa |
| 28 | Sadie Clark | 61 | Wife | — | Iowa |
| 29 | Virginia Beleha | 62 | Housekeeper | Housekeeper | Missouri |
| 30 | E. S. Baylis | 63 | Head | Manager | Kansas |
| 31 | Alma Baylis | 53 | Wife | — | Kansas |
| 32 | Lloyd Davis | 21 | Lodger | — | — |
| 33 | Edna Evans | 32 | Wife | — | Wyoming |
| 34 | Joan Branstetter | 13 | Stepdaughter | — | Montana |
| 35 | Dorothy Evans | 13 | Daughter | — | Illinois |
| 36 | Charlie Hoffman | 3 | Son | — | Colorado |
| 37 | Carl Hill | 35 | Head | Manager | Missouri |
| 38 | Dorothy Hill | 29 | Wife | — | Colorado |
| 39 | Nancy Hill | 7 | Daughter | — | Colorado |
| 40 | Carl Jr. Hill | 3 | Son | — | Colorado |
Pedigree Summary
Mary
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)