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Howard Davis — 1940 US Census Record
Model Tree available1940 United States Federal Census · Polk-County, Iowa
Our Model Tree links this Howard Davis across the 1920, 1930 and 1940 US Censuses in Polk-County, Iowa (XGBoost, ~Confirmed), with identified parents Howard & Howard — first a son (b.~1919), then head of a 6-person household.
Age 21
b. ~1919
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Polk-County, Iowa |
| Surname | Davis |
| Given Name | Howard Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Des Moines City of |
| 1935 Residence (County) | Polk |
| Additional Details | |
| Occupation | Load Miner |
| Industry | Coal Mining |
| Class of Worker | PW |
| Hours Worked | 56 |
| Income (1939) | 180 |
| Highest Grade | H-1 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Load Miner |
| Township / Ward | Des Moines City Of |
| 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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Howard | Age | Birth yr |
|---|---|---|---|---|
| Lois Davis | Daughter | — | 15 | ~1925 |
| Mary Davis | Daughter | — | 11 | ~1929 |
| Howard Davis | Head | — | 49 | ~1891 |
| Howard Davis | Son | — | 21 | ~1919 |
| Norman Davis | Son | — | 19 | ~1921 |
| Rebecca Davis | Spouse | — | 42 | ~1898 |
Census Appearances
1920
Polk, Iowa
Son, age
Polk, Iowa · implied b. ~1920 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Howard Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Polk, Iowa
Son, age 11
Polk, Iowa · implied b. ~1919 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Howard Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Iowa |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Polk-County, Iowa
Son, age 21
Polk-County, Iowa · implied b. ~1919 — 6 household members
| Surname | Davis |
| Given Name | Howard Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Des Moines City of |
| 1935 Residence (County) | Polk |
| Occupation | Load Miner |
| Industry | Coal Mining |
| Class of Worker | PW |
| Hours Worked | 56 |
| Income (1939) | 180 |
| Highest Grade | H-1 |
| 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 Howard Davis across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Howard Davis (~0.92 confidence) and father Howard Davis (~0.92 confidence) and father Howard Davis (~0.92 confidence) and mother Rebecca Davis (~0.92 confidence) and mother Rebecca Davis (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Howard Davis
b. ~1891
Source father
● Household
· direct · ~0.92
Father
Howard Davis
b. ~1892
Source father
● Household
· direct · ~0.92
Father
Howard Davis
b. ~1895
Source father
● Household
· direct · ~0.92
Mother
Rebecca Davis
b. ~1898
Source mother
● Household
· direct · ~0.92
Mother
Rebecca Davis
b. ~1898
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Howard Davis
Son · 1940 · age 21 · b. ~1919 · Iowa
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Sibling
Norman Davis
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Davis
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lois Davis
Sibling · 1940 · age 15
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 — Polk-County, Iowa
Open full size
1940 US Federal Census — Polk-County, Iowa
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01196-00628)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Richard Hockmuth | 17 | Son | — | Iowa |
| 2 | Sarah Hockmuth | 14 | Daughter | — | Iowa |
| 3 | Howard M. Davis | 49 | Head | Load Miner | Iowa |
| 4 | Rebecca Davis | 42 | Wife | — | Iowa |
| 5 | Howard Jr. Davis THIS PERSON | 21 | Son | Load Miner | Iowa |
| 6 | Norman Davis | 19 | Son | — | Iowa |
| 7 | Lois E. Davis | 15 | Daughter | — | Iowa |
| 8 | Mary R. Davis | 11 | Daughter | — | Iowa |
| 9 | Geo E. Williby | 55 | Head | Surveyor | Iowa |
| 10 | Palma Williby | 52 | Wife | — | Iowa |
| 11 | Richard Williby | 16 | Son | — | Iowa |
| 12 | Jessie Stambaugh | 77 | Head | — | No. Dak. |
| 13 | Lawrence Simons | 35 | Head | Trucker | Iowa |
| 14 | Thea R. Simons | 60 | Father | — | Ill. |
| 15 | Ino Hanes | 32 | Head | Meat Packer | Iowa |
| 16 | Dorothy Hanes | 27 | Wife | — | Iowa |
| 17 | Raymond Hanes | 9 | Son | — | Iowa |
| 18 | Lena Hanes | 8 | Daughter | — | Iowa |
| 19 | Milton Hanes | 7 | Son | — | Iowa |
| 20 | Michael Hanes | 2 | Son | — | Iowa |
| 21 | Mitchell Hanes | 12 | Son | — | Iowa |
| 22 | Carl W. Hunt | 36 | Head | Truck Driver | Iowa |
| 23 | Beryl P. Hunt | 34 | Wife | — | Iowa |
| 24 | Earle May Hunt | 5 | Daughter | — | Iowa |
| 25 | Donna Jean Hunt | 5 | Daughter | — | Iowa |
| 26 | August Weber | 57 | Head | Trucker | Germany |
| 27 | Martha Weber | 68 | Wife | — | Norway |
| 28 | Oscar A. Peterson | 41 | Head | Painter & Contractor | Iowa |
| 29 | Opal M. Peterson | 32 | Wife | — | Mo. |
| 30 | Myrtle Peterson | 61 | Head | Matron | Iowa |
| 31 | Millicent Shaw | 24 | Daughter | — | Iowa |
| 32 | Arthur J. Shaw | 33 | Son-in-law | Oil Station Attendant | Okla. |
| 33 | Clark A. Cody | 61 | Head | Coal Miner | Iowa |
| 34 | Ida B. Cody | 63 | Wife | — | Iowa |
| 35 | Benj F. Smith | 42 | Head | Carpenter | Iowa |
| 36 | Margaret Smith | 36 | Wife | — | Mo. |
| 37 | Lyman B. Masteller | 55 | Head | Laborer | Iowa |
| 38 | Ruth C. Masteller | 41 | Wife | — | Iowa |
| 39 | Ellen S. Dougherty | 19 | Daughter | New Worker | Iowa |
Pedigree Summary
Howard + 3 siblings
Gen 1 · 5 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)