RC
Richard Clark — 1940 US Census Record
Model Tree available1940 United States Federal Census · Grundy-County, Missouri
Our Model Tree links this Richard Clark across the 1920, 1930 and 1940 US Censuses in Grundy-County, Missouri (XGBoost, ~Confirmed), with identified parents Lulu & R — first a son (b.~1917), then head of a 5-person household.
Age 23
b. ~1917
Male
Son
Born: Missouri
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Grundy-County, Missouri |
| Surname | Clark |
| Given Name | Richard |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | Trenton City |
| 1935 Residence (County) | Grundy |
| Additional Details | |
| Occupation | Laborer |
| Class of Worker | PW |
| Hours Worked | 56 |
| Income (1939) | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Occupation | Laborer |
| Township / Ward | Trenton City |
| 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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Richard | Age | Birth yr |
|---|---|---|---|---|
| Lenora Clark | Daughter | — | 15 | ~1925 |
| Dorothy Clark | Daughter | — | 17 | ~1923 |
| Lulu Clark | Head | — | 51 | ~1889 |
| Richard Clark | Son | — | 23 | ~1917 |
| Edward Clark | Son | — | 12 | ~1928 |
Census Appearances
1920
Grundy, Missouri
Son, age 2
Grundy, Missouri · implied b. ~1918 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Richard |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Nebraska |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1930
Grundy, Missouri
Son, age 12
Grundy, Missouri · implied b. ~1918 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Richard |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Can Read/Write | Yes |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1940
Grundy-County, Missouri
Son, age 23
Grundy-County, Missouri · implied b. ~1917 — 5 household members
| Surname | Clark |
| Given Name | Richard |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | Trenton City |
| 1935 Residence (County) | Grundy |
| Occupation | Laborer |
| Class of Worker | PW |
| Hours Worked | 56 |
| Income (1939) | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
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 Richard Clark across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Lulu Clark (~0.92 confidence) and father R Clark (~0.92 confidence) and father Stephen Clark (~0.92 confidence) and mother Lula Clark (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Lulu Clark
b. ~1889
Source mother
● Household
· direct · ~0.92
Father
R Clark
b. ~1889
Source father
● Household
· direct · ~0.92
Father
Stephen Clark
b. ~1889
Source father
● Household
· direct · ~0.92
Mother
Lula Clark
b. ~1899
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Richard Clark
Son · 1940 · age 23 · b. ~1917 · Missouri
★ You are viewing this record
Sibling
Edward Clark
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lenora Clark
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Clark
Sibling · 1940 · age 17
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 — Grundy-County, Missouri
Open full size
1940 US Federal Census — Grundy-County, Missouri
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02110-00359)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Lavon Arbuckle | 14 | Daughter | — | Missouri |
| 42 | Lois Jean Arbuckle | 13 | Daughter | — | Missouri |
| 43 | Amer Gardner | 33 | Head | Laborer | Missouri |
| 44 | Golda Gardner | 24 | Wife | — | Missouri |
| 45 | Georgia Gardner | 8 | Daughter | — | Missouri |
| 46 | Donald Gardner | 2 | Son | — | Missouri |
| 47 | Lloyd Ellis | 36 | Head | Laborer | Missouri |
| 48 | May Ellis | 36 | Wife | — | Missouri |
| 49 | Ruth Ellis | 16 | Daughter | — | Missouri |
| 50 | Inalee Ellis | 10 | Daughter | — | Missouri |
| 51 | Lulu Clark | 51 | Head | — | Nebraska |
| 52 | Richard Clark THIS PERSON | 23 | Son | Laborer | Missouri |
| 53 | Dorothy Clark | 17 | Daughter | Housework | Missouri |
| 54 | Lenora Clark | 15 | Daughter | — | Missouri |
| 55 | Edward Clark | 12 | Son | — | Missouri |
| 56 | Jesse Ward | 49 | Head | Clerk | Missouri |
| 57 | Margueritte Ward | 36 | Wife | — | Missouri |
| 58 | Paul Ward | 14 | Son | — | Missouri |
| 59 | Billy Ward | 10 | Son | — | Missouri |
| 60 | Robert Ward | 7 | Son | — | Missouri |
| 61 | Ada Mae Ward | 5 | Son | — | Missouri |
| 62 | Hansel Hutchens | 33 | Head | Expressman | Missouri |
| 63 | Opal Hutchens | 33 | Wife | Housework | Missouri |
| 64 | Golda Mae Hutchens | 10 | Daughter | — | Missouri |
| 65 | Charles Hutchens | 6 | Son | — | Missouri |
| 66 | Lewis Hart | 39 | Head | Trucking Operator | Missouri |
| 67 | Pauline Hart | 33 | Wife | General Work | Missouri |
| 68 | Lois Jean Hart | 13 | Daughter | — | Missouri |
| 69 | Ethel Pond | 62 | Head | Merchant | Missouri |
| 70 | Vacant House | None | — | — | — |
| 71 | L. D. Chrisman | 52 | Head | Road Construction | Missouri |
| 72 | Lola Chrisman | 43 | Wife | — | Missouri |
| 73 | Alvin Chrisman | 21 | Son | — | Oklahoma |
| 74 | Ella Chrisman | 17 | Daughter | — | Oklahoma |
| 75 | Letha Chrisman | 8 | Daughter | — | Missouri |
| 76 | Wayne Chrisman | 0 | Son | — | Missouri |
| 77 | Letha Brothers | 59 | Head | Housework | Missouri |
| 78 | Dora Sharp | 40 | Head | Laundry Work | Missouri |
| 79 | Lorraine Sharp | 8 | Daughter | — | Missouri |
| 80 | James F. Nickels | 60 | Head | Superintendent | Missouri |
Pedigree Summary
Richard + 3 siblings
Gen 1 · 4 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)