LC
Lillie Clark — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Weld-County, Colorado
Our Model Tree links this Lillie Clark across the 1930 and 1940 US Censuses in Weld-County, Colorado (XGBoost, ~Confirmed) — first a daughter (b.~1924), then head of a 7-person household.
Age 16
b. ~1924
Female
Daughter
Born: Colorado
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Weld-County, Colorado |
| Surname | Clark |
| Given Name | Lillie May |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Colorado |
| 1935 Residence (City) | Greeley City |
| 1935 Residence (County) | Weld |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
| Township / Ward | Greeley City |
| Est. Birth Year | ~1924 |
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 Lillie | Age | Birth yr |
|---|---|---|---|---|
| Walter Clark | Head | — | 54 | ~1886 |
| Elsie Clark | Spouse | — | 45 | ~1895 |
| Mary Clark | Daughter | — | 13 | ~1927 |
| Walter Clark | Son | — | 14 | ~1926 |
| Maribrie Clark | Daughter | — | 11 | ~1929 |
| Lillie Clark | Daughter | — | 16 | ~1924 |
| William Clark | Son | — | 5 | ~1935 |
Census Appearances
1930
Weld, Colorado
Daughter, age 6
Weld, Colorado · implied b. ~1924 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Lillie M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Wisconsin |
| Can Read/Write | Yes |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1940
Weld-County, Colorado
Daughter, age 16
Weld-County, Colorado · implied b. ~1924 — 7 household members
| Surname | Clark |
| Given Name | Lillie May |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Colorado |
| 1935 Residence (City) | Greeley City |
| 1935 Residence (County) | Weld |
| Highest Grade | No 8 |
| 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 Lillie Clark across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Lillie Clark
Daughter · 1940 · age 16 · b. ~1924 · Colorado
★ You are viewing this record
Sibling
Maribrie Clark
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Walter Clark
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Clark
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Clark
Sibling · 1940 · age 5
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 — Weld-County, Colorado
Open full size
1940 US Federal Census — Weld-County, Colorado
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-00482-00790)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Hattie M Hunter | 67 | Head | — | Iowa |
| 2 | Carl C Hunter | 46 | Son | Chief Police | Colorado |
| 3 | Mary Sjoberg | 69 | Head | — | Denmark |
| 4 | Helen Caufman | 18 | Lodger | — | Nebraska |
| 5 | Telford R Ward | 40 | Head | — | Texas |
| 6 | Mary Ward | 28 | Wife | Cook | Colorado |
| 7 | Telford Jr Ward | 7 | Son | — | Colorado |
| 8 | Barbara Jean Ward | 5 | Daughter | — | Colorado |
| 9 | Mary Lou Ward | 4 | Daughter | — | Colorado |
| 11 | Raymond Campbell | 47 | Head | Salesman | Missouri |
| 12 | Clara Campbell | 42 | Wife | — | Missouri |
| 13 | Raymond Jr Campbell | 19 | Son | Salesman | Colorado |
| 14 | Allen Campbell | 15 | Son | Salesman | Colorado |
| 15 | Mildred Harshbarger | 48 | Head | Teacher'S Assistant | Nebraska |
| 16 | Mildred L Harshbarger | 17 | Daughter | Teacher'S Assistant | Illinois |
| 17 | Allen Harshbarger | 16 | Son | — | Nebraska |
| 18 | Esther A Young | 83 | Mother | — | Wisconsin |
| 19 | Cloyde L Keenker | 49 | Head | Salesman | Kansas |
| 20 | Hattie M Keenker | 45 | Wife | — | Nebraska |
| 21 | Cecil Curtis | 26 | Head | Hustler | Colorado |
| 22 | Eva Curtis | 21 | Wife | Maid | Colorado |
| 23 | Ben H Donahue | 43 | Head | Mechanic | Colorado |
| 24 | Nina Donahue | 42 | Wife | — | Nebraska |
| 25 | Warren Donahue | 19 | Son | — | Colorado |
| 26 | Jack Donahue | 17 | Son | — | Colorado |
| 27 | Walter T Clark | 54 | Head | Gardener | Indiana |
| 28 | Elsie M Clark | 45 | Wife | — | Wisconsin |
| 29 | Lillie May Clark THIS PERSON | 16 | Daughter | — | Colorado |
| 30 | Walter J Clark | 14 | Son | — | Colorado |
| 31 | Mary L Clark | 13 | Daughter | — | Colorado |
| 32 | Maribrie C Clark | 11 | Daughter | — | Colorado |
| 33 | William Son Clark | 5 | Son | — | Colorado |
| 35 | Lester Jackson | 53 | Head | Painter | Iowa |
| 36 | May Jackson | 52 | Wife | — | Iowa |
| 37 | David Baker | 78 | Father-in-law | — | Ohio |
| 38 | Lucille Baker | 52 | Sister-in-law | — | Iowa |
| 39 | Woodrow Goodfellow | 21 | Head | Bookkeeper | Colorado |
| 40 | Gertrude Goodfellow | 18 | Wife | — | Colorado |
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)