CD
Clarence Davis — 1940 US Census Record
Model Tree available1940 United States Federal Census · Iowa-County, Iowa
Our Model Tree links this Clarence Davis across the 1920, 1930 and 1940 US Censuses in Iowa-County, Iowa (XGBoost, ~Confirmed), with identified parents Arthur & Arthur — first a head (b.~1906), then head of a 4-person household.
Age 34
b. ~1906
Male
Head
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Iowa-County, Iowa |
| Surname | Davis |
| Given Name | Clarence |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Pilot |
| 1935 Residence (County) | Iowa |
| Additional Details | |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 500 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Laborer |
| Township / Ward | Pilot |
| 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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Clarence | Age | Birth yr |
|---|---|---|---|---|
| Lois Davis | Daughter | — | 5 | ~1935 |
| Clarence Davis | Head | — | 34 | ~1906 |
| Kenneth Davis | Son | — | 3 | ~1937 |
| Grace Davis | Spouse | — | 29 | ~1911 |
Census Appearances
1920
Iowa, Iowa
Son, age 14
Iowa, Iowa · implied b. ~1906 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Clarence A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Iowa, Iowa
Son, age 24
Iowa, Iowa · implied b. ~1906 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Clarence A |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | Laborer |
| Industry | General Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Iowa-County, Iowa
Head, age 34
Iowa-County, Iowa · implied b. ~1906 — 4 household members
| Surname | Davis |
| Given Name | Clarence |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Pilot |
| 1935 Residence (County) | Iowa |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 500 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 Clarence Davis across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Arthur Davis (~0.92 confidence) and father Arthur Davis (~0.92 confidence) and mother Mary Davis (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Arthur Davis
b. ~1870
Source father
● Household
· direct · ~0.92
Father
Arthur Davis
b. ~1870
Source father
● Household
· direct · ~0.92
Mother
Mary Davis
b. ~1874
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Clarence Davis
Head · 1940 · age 34 · b. ~1906 · Iowa
★ 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 — Iowa-County, Iowa
Open full size
1940 US Federal Census — Iowa-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01168-00395)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Lucille Kleuer | 22 | Daughter | Music Teacher | Iowa |
| 42 | Earl G. Davis | 47 | Head | Farmer | Iowa |
| 43 | May Davis | 41 | Wife | — | Iowa |
| 44 | Irena Scandridge | 13 | Neice | — | Iowa |
| 45 | Floyd Lacy | 30 | Hired hand | Laborer | Iowa |
| 46 | H. F. Eggert | 52 | Head | Farmer | Iowa |
| 47 | Lela Eggert | 51 | Wife | — | Iowa |
| 48 | Alvin Eggert | 19 | Son | Farm | Iowa |
| 49 | Isola Eggert | 16 | Daughter | — | Iowa |
| 50 | Merlyn Davis | 26 | Head | Farmer | Iowa |
| 51 | Ina O. Davis | 27 | Wife | — | Iowa |
| 52 | James E. Davis | 6 | Son | — | Iowa |
| 53 | Verlyn G. Davis | 4 | Son | — | Iowa |
| 54 | Sylvia Kay Davis | 3 | Daughter | — | Iowa |
| 55 | Sherry Rae Davis | 1 | Daughter | — | Iowa |
| 56 | Ernest Wielemeier | 32 | Head | Farmer | Iowa |
| 57 | Lillie Wielemeier | 30 | Wife | — | Iowa |
| 58 | Maralee Wielemeier | 6 | Daughter | — | Iowa |
| 59 | Yvonne Wielemeier | 4 | Daughter | — | Iowa |
| 60 | Jerome Wielemeier | 0 | Son | — | Iowa |
| 61 | Arthur H. Davis | 70 | Head | Farmer | Iowa |
| 62 | Mary O. Davis | 66 | Wife | — | Iowa |
| 63 | Clarence Davis THIS PERSON | 34 | Head | Laborer | Iowa |
| 64 | Grace O. Davis | 29 | Wife | — | Iowa |
| 65 | Lois Davis | 5 | Daughter | — | Iowa |
| 66 | Kenneth Davis | 3 | Son | — | Iowa |
| 67 | W. E. Lamm | 38 | Head | Farmer | Iowa |
| 68 | Elsie A. Lamm | 34 | Wife | — | Iowa |
| 69 | Donald Lamm | 15 | Son | — | Iowa |
| 70 | Keith Lamm | 13 | Son | — | Iowa |
| 71 | Lloyd Lamm | 12 | Son | — | Iowa |
| 72 | George Herdlicka | 53 | Head | Farmer | Iowa |
| 73 | Cora Herdlicka | 45 | Wife | — | Missouri |
| 74 | Frank Herdlicka | 24 | Son | Farm | Iowa |
| 75 | George Jr. Herdlicka | 21 | Son | Farm | Iowa |
| 76 | Portia Herdlicka | 18 | Daughter | Farm | Iowa |
| 77 | Richard Herdlicka | 16 | Son | — | Iowa |
| 78 | Darlene Herdlicka | 14 | Daughter | — | Iowa |
| 79 | Betty Herdlicka | 12 | Daughter | — | Iowa |
| 80 | Eugene Herdlicka | 11 | Son | — | Iowa |
Pedigree Summary
Clarence
Gen 1 · 3 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)