LC
Lillian Clark — 1940 US Census Record
Model Tree available1940 United States Federal Census · Union-County, New Mexico
Our Model Tree links this Lillian Clark across the 1920, 1930 and 1940 US Censuses in Union-County, New Mexico (XGBoost, ~Confirmed), with identified parents Albert & James — first a daughter (b.~1917), then head of a 7-person household.
Age 23
b. ~1917
Female
Daughter
Born: New Mexico
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Union-County, New Mexico |
| Surname | Clark |
| Given Name | Lillian |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | New Mexico |
| 1935 Residence (City) | Clayton Town |
| Additional Details | |
| Occupation | Stenographer |
| Industry | Welfare Office |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 204 |
| Highest Grade | Hs 4 |
| Birth State | New Mexico |
| Birth Country | United States |
| Birthplace (normalized) | new mexico |
| Occupation | Stenographer |
| Township / Ward | Clayton Town |
| Est. Birth Year | ~1917 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Lillian | Age | Birth yr |
|---|---|---|---|---|
| Rachel Clark | Spouse | — | 41 | ~1899 |
| Albert Clark | Son | — | 16 | ~1924 |
| Bertha Clark | Daughter | — | 12 | ~1928 |
| Aaline Clark | Daughter | — | 2 | ~1938 |
| Lillian Clark | Daughter | — | 23 | ~1917 |
| Charles Clark | Son | — | 19 | ~1921 |
| Tanker Clark | Head | — | 45 | ~1895 |
Census Appearances
1920
Union, New …
Daughter, age 2
Union, New Mexico · implied b. ~1918 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Lillian F. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | New Mexico |
| Father's Birthplace | Texas |
| Mother's Birthplace | Kansas |
| Birth State | New Mexico |
| Birth Country | United States |
| Birthplace (normalized) | new mexico |
1930
Union, New …
Daughter, age 13
Union, New Mexico · implied b. ~1917 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Lillian |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | New Mexico |
| Father's Birthplace | Texas |
| Mother's Birthplace | Kansas |
| Can Read/Write | Yes |
| Birth State | New Mexico |
| Birth Country | United States |
| Birthplace (normalized) | new mexico |
1940
Union-County, New …
Daughter, age 23
Union-County, New Mexico · implied b. ~1917 — 7 household members
| Surname | Clark |
| Given Name | Lillian |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | New Mexico |
| 1935 Residence (City) | Clayton Town |
| Occupation | Stenographer |
| Industry | Welfare Office |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 204 |
| Highest Grade | Hs 4 |
| Birth State | New Mexico |
| Birth Country | United States |
| Birthplace (normalized) | new mexico |
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 Lillian Clark across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Albert Heidengut (~0.92 confidence) and father James Clark (~0.92 confidence) and father Tanker Clark (~0.92 confidence) and mother Rachel Clark (~0.92 confidence) and father Albert Heidengut (~0.84 confidence). The pedigree spans 2 generations with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.9
Father
Albert Heidengut
b. ~1858
Source father
● Household
· direct · ~0.92
Father
James Clark
b. ~1895
Source father
● Household
· direct · ~0.92
Father
Tanker Clark
b. ~1895
Source father
● Household
· direct · ~0.92
Mother
Rachel Clark
b. ~1899
Source mother
● Household
· direct · ~0.92
Father
Albert Heidengut
b. ~1858
Source mother>father
● Household
· direct · ~0.84
This person
Anchor record
Lillian Clark
Daughter · 1940 · age 23 · b. ~1917 · New Mexico
★ You are viewing this record
Sibling
Bertha Clark
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Albert Clark
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Clark
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Aaline Clark
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Union-County, New Mexico
Open full size
1940 US Federal Census — Union-County, New Mexico
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-02455-00053)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Josie Taylor | 21 | wife | — | New Mexico |
| 2 | Frances Taylor | 4 | daughter | — | New Mexico |
| 3 | James Lloyd Taylor | 1 | son | — | New Mexico |
| 4 | Mae Long | 63 | mother | — | New Mexico |
| 5 | Deciderio Gonzales | 38 | head | Stone Mason | New Mexico |
| 6 | Katie Gonzales | 33 | wife | — | Mexico |
| 7 | Alice Gonzales | 5 | daughter | — | New Mexico |
| 8 | Eddie Gonzales | 3 | son | — | New Mexico |
| 9 | Edward Lopez | 29 | head | Cook | New Mexico |
| 10 | Florinda Lopez | 28 | wife | — | New Mexico |
| 11 | Helen Lopez | 9 | daughter | — | New Mexico |
| 12 | Infant Lopez | 0 | son | — | New Mexico |
| 13 | Lloyd Lovato | 29 | head | Labour | New Mexico |
| 14 | Flora Lovato | 23 | wife | — | New Mexico |
| 15 | Danny V. Lovato | 2 | son | — | New Mexico |
| 16 | Pedro Hernandez | 30 | head | Shepherd | New Mexico |
| 17 | Cloude Hernandez | 26 | wife | Housekeeper | New Mexico |
| 18 | Bertha Hernandez | 8 | daughter | — | New Mexico |
| 19 | Viola Hernandez | 5 | daughter | — | New Mexico |
| 20 | Ernestina Hernandez | 4 | daughter | — | New Mexico |
| 22 | Dan Taylor | 69 | head | Janitor | Colorado |
| 23 | Anastacia Taylor | 58 | wife | — | Colorado |
| 24 | Luis Taylor | 22 | son | Janitor | New Mexico |
| 25 | Pablo Quintana | 30 | son-in-law | Labour | New Mexico |
| 26 | Rose Quintana | 21 | daughter | — | New Mexico |
| 27 | Johnnie Anaya | 14 | grandson | — | Colorado |
| 28 | Margaret Kelly | 11 | granddaughter | — | New Mexico |
| 29 | Bertha Mcafferty | 43 | head | Cutter | Texas |
| 30 | Louise Mcafferty | 20 | daughter | Clerk | Texas |
| 31 | Katherine Jo Mcafferty | 11 | daughter | — | Texas |
| 32 | Doris Jane Daves | 17 | daughter | — | Texas |
| 33 | Tanker Clark | 45 | head | Painter | Texas |
| 34 | Rachel Clark | 41 | wife | — | Kansas |
| 35 | Lillian Clark THIS PERSON | 23 | daughter | Stenographer | New Mexico |
| 36 | Charles Clark | 19 | son | Attendant | New Mexico |
| 37 | Albert Clark | 16 | son | Clerk | New Mexico |
| 38 | Bertha Clark | 12 | daughter | — | New Mexico |
| 39 | Aaline Clark | 2 | daughter | — | New Mexico |
| 40 | Vicente G. Garcia | 59 | head | Deliveryman | New Mexico |
Pedigree Summary
Lillian + 4 siblings
Gen 1 · 4 parents
~0.92
Gen 2 · 1 grandparents
~0.84
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)