JD
James Davenport — 1940 US Census Record
Model Tree available1940 United States Federal Census · Polk-County, Iowa
Our Model Tree links this James Davenport across the 1920, 1930 and 1940 US Censuses in Polk-County, Iowa (XGBoost, ~Confirmed), with identified parents C & Claude — first a son (b.~1918), then head of a 4-person household.
Age 22
b. ~1918
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Polk-County, Iowa |
| Surname | Davenport |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Saylor Township |
| 1935 Residence (County) | Polk |
| Additional Details | |
| Occupation | Truck Driver |
| Industry | Coal Company |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 420 |
| Highest Grade | 7 |
| 1935 Residence | Same House |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Truck Driver |
| Township / Ward | Saylor Township |
| Est. Birth Year | ~1918 |
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 James | Age | Birth yr |
|---|---|---|---|---|
| Claude Davenport | Head | — | 55 | ~1885 |
| Leo Davenport | Son | — | 25 | ~1915 |
| Nellie Davenport | Spouse | — | 58 | ~1882 |
| James Davenport | Son | — | 22 | ~1918 |
Census Appearances
1920
Polk, Iowa
Son, age 2
Polk, Iowa · implied b. ~1918 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davenport |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Norway |
| Mother Tongue | Norwegian |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Polk, Iowa
Son, age 12
Polk, Iowa · implied b. ~1918 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davenport |
| Given Name | James S |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Norway |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Polk-County, Iowa
Son, age 22
Polk-County, Iowa · implied b. ~1918 — 4 household members
| Surname | Davenport |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Saylor Township |
| 1935 Residence (County) | Polk |
| Occupation | Truck Driver |
| Industry | Coal Company |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 420 |
| Highest Grade | 7 |
| 1935 Residence | Same House |
| 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 James Davenport across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father C Davenport (~0.92 confidence) and father Claude Davenport (~0.92 confidence) and father Elmer Davenport (~0.92 confidence) and mother Nellie Davenport (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
C Davenport
b. ~1885
Source father
● Household
· direct · ~0.92
Father
Claude Davenport
b. ~1885
Source father
● Household
· direct · ~0.92
Father
Elmer Davenport
b. ~1885
Source father
● Household
· direct · ~0.92
Mother
Nellie Davenport
b. ~1882
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Davenport
Son · 1940 · age 22 · b. ~1918 · Iowa
★ You are viewing this record
Sibling
Leo Davenport
Sibling · 1940 · age 25
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
38 people indexed on this census page (nara:1940:m-t0627-01192-00663)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | William E. Hester | 58 | Head | Partner | Iowa |
| 2 | Nelle Hester | 56 | Wife | — | Iowa |
| 3 | Myrtle Mccutcheon | 44 | Head | — | Iowa |
| 4 | Frank Mccutcheon | 24 | Son | Well Driller | Iowa |
| 5 | Homer Mccutcheon | 16 | Son | — | Iowa |
| 6 | Harry Huber | 25 | Head | Auditor | Minnesota |
| 7 | Ethel Huber | 21 | Wife | — | Wisconsin |
| 8 | Violet Holden | 25 | Head | Housekeeper | Iowa |
| 9 | Ralph O'Gilvie | 26 | Head | Coach | Iowa |
| 10 | Mary O'Gilvie | 20 | Wife | — | Iowa |
| 11 | Ralph Jr. O'Gilvie | 1 | Son | — | Iowa |
| 12 | Claude Davenport | 55 | Head | Truck Driver | Illinois |
| 13 | Nellie Davenport | 58 | Wife | — | Norway |
| 14 | Leo Davenport | 25 | Son | Well Driller | Iowa |
| 15 | James Davenport THIS PERSON | 22 | Son | Truck Driver | Iowa |
| 16 | Jacob Hook | 79 | Head | — | Pennsylvania |
| 17 | Ida Hook | 72 | Wife | — | Pennsylvania |
| 18 | Bertha Cleveland | 55 | Head | Housekeeper | Iowa |
| 19 | Anton Patrick | 59 | Head | — | Germany |
| 20 | Zella Patrick | 60 | Wife | — | Iowa |
| 21 | Herman Patrick | 34 | Head | Receiving Teller | Iowa |
| 22 | Shirley Patrick | 7 | Daughter | — | Iowa |
| 23 | Gordon Patrick | 5 | Son | — | Iowa |
| 24 | Margaret Cattrell | 23 | Head | Waitress | Iowa |
| 25 | Ray Clarkson | 35 | Head | Shipping Clerk | Iowa |
| 26 | Dorothy Clarkson | 34 | Wife | — | Iowa |
| 27 | Willard Clarkson | 11 | Son | — | Iowa |
| 28 | Richard Clarkson | 7 | Son | — | Iowa |
| 29 | Ann Clarkson | 1 | Daughter | — | Iowa |
| 30 | Durward Heater | 34 | Head | Attendant | Iowa |
| 31 | Orpha Heater | 36 | Wife | — | Iowa |
| 32 | William Cope | 66 | Head | — | Illinois |
| 33 | Luella Cope | 58 | Wife | — | Illinois |
| 34 | Cecil Short | 44 | Head | Separator Operator | Iowa |
| 35 | Opal Short | 35 | Wife | — | Illinois |
| 36 | Harold Short | 12 | Son | — | Iowa |
| 37 | Raymond Short | 8 | Son | — | Iowa |
| 38 | Robert Short | 6 | Son | — | Iowa |
Pedigree Summary
James + 1 sibling
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)