DD
Donald Davis — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cerro-Gordo-County, Iowa
Our Model Tree links this Donald Davis across the 1920, 1930 and 1940 US Censuses in Cerro-Gordo-County, Iowa (XGBoost, ~Confirmed), with identified parents Benjamin & B — first a head (b.~1910), then head of a 9-person household.
Age 30
b. ~1910
Male
Head
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cerro-Gordo-County, Iowa |
| Surname | Davis |
| Given Name | Donald |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Mason City |
| 1935 Residence (County) | Cerro Gordo |
| Additional Details | |
| Occupation | Trucker & Salesman |
| Industry | Transportation & Pizza Station |
| Class of Worker | OA |
| Income (1939) | 500 |
| Highest Grade | H-3 |
| 1935 Residence | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Trucker & Salesman |
| Township / Ward | Clear Lake City |
| Est. Birth Year | ~1910 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Donald | Age | Birth yr |
|---|---|---|---|---|
| Marilyn Davis | Daughter | — | 6 | ~1934 |
| Carol Davis | Daughter | — | 1 | ~1939 |
| Betty Davis | Daughter | — | 8 | ~1932 |
| Donald Davis | Head | — | 30 | ~1910 |
| George Jones | Other | — | 75 | ~1865 |
| Richard Davis | Son | — | 7 | ~1933 |
| Leslie Davis | Son | — | 4 | ~1936 |
| Donald Davis | Son | — | 9 | ~1931 |
| Marian Davis | Spouse | — | 31 | ~1909 |
Census Appearances
1920
Cerro Gordo, …
Son, age 10
Cerro Gordo, Iowa · implied b. ~1910 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Donald |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| 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
Cerro Gordo, …
Son, age 20
Cerro Gordo, Iowa · implied b. ~1910 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Donald R |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | Laborer |
| Industry | General Farm |
| Class of Worker | VVVV |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Cerro-Gordo-County, Iowa
Head, age 30
Cerro-Gordo-County, Iowa · implied b. ~1910 — 9 household members
| Surname | Davis |
| Given Name | Donald |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Mason City |
| 1935 Residence (County) | Cerro Gordo |
| Occupation | Trucker & Salesman |
| Industry | Transportation & Pizza Station |
| Class of Worker | OA |
| Income (1939) | 500 |
| Highest Grade | H-3 |
| 1935 Residence | Iowa |
| 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 Donald Davis across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Benjamin Davis (~0.92 confidence) and father B Davis (~0.92 confidence) and mother Ida Davis (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Benjamin Davis
b. ~1881
Source father
● Household
· direct · ~0.92
Father
B Davis
b. ~1882
Source father
● Household
· direct · ~0.92
Mother
Ida Davis
b. ~1884
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Donald Davis
Head · 1940 · age 30 · b. ~1910 · 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 — Cerro-Gordo-County, Iowa
Open full size
1940 US Federal Census — Cerro-Gordo-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01146-00067)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Suzanne Lysne | 1 | Granddaughter | — | Minnesota |
| 42 | Paul Kutzner | 25 | Son in law | Canner | Iowa |
| 43 | Cherry Kutzner | 21 | Daughter | Saleswoman | Iowa |
| 44 | George Newman | 43 | Head | — | Illinois |
| 45 | Pearl Newman | 43 | Wife | — | Iowa |
| 46 | Kathleen Newman | 19 | Daughter | — | Iowa |
| 47 | James Newman | 18 | Son | 8 | Iowa |
| 48 | Donald Newman | 13 | Son | — | Iowa |
| 49 | Mary Ann Newman | 11 | Daughter | — | Iowa |
| 50 | Ellen Newman | 8 | Daughter | — | Iowa |
| 51 | Margaret Newman | 4 | Daughter | — | Iowa |
| 52 | George Jr. Newman | 1 | Son | — | Iowa |
| 53 | Alice Hall | 18 | Servant | Private Housework | Iowa |
| 54 | Olive Hall | 19 | Servant | Private Housework | Iowa |
| 55 | Ira H. Jones | 63 | Head | 54 | New York |
| 56 | Bertha M. Jones | 62 | Wife | — | Iowa |
| 57 | Loretta Welsh | 31 | Head | Saleswoman | Iowa |
| 58 | Jesse Welsh | 67 | Mother | — | Illinois |
| 59 | Harold Murray | 28 | Head | Manager | Iowa |
| 60 | Bessie Murray | 25 | Wife | — | Iowa |
| 61 | Charlene Murray | 4 | Daughter | — | Iowa |
| 62 | Roger G. Nelson | 32 | Head | 63 | Iowa |
| 63 | Frances Nelson | 30 | Wife | — | Iowa |
| 64 | Rodney Nelson | 5 | Son | — | Iowa |
| 65 | Arlen Nelson | 1 | Son | — | Iowa |
| 66 | Irwin Lee | 34 | Head | Mechanic & Manager | Iowa |
| 67 | Temperance Lee | 27 | Wife | — | Colorado |
| 68 | Donald Davis THIS PERSON | 30 | Head | Trucker & Salesman | Iowa |
| 69 | Marian Davis | 31 | Wife | Book Repairer | Minnesota |
| 70 | Donald R. Jr. Davis | 9 | Son | — | Iowa |
| 71 | Betty Davis | 8 | Daughter | — | Iowa |
| 72 | Richard Davis | 7 | Son | — | Iowa |
| 73 | Marilyn Davis | 6 | Daughter | — | Iowa |
| 74 | Leslie Davis | 4 | Son | — | Iowa |
| 75 | Carol Davis | 1 | Daughter | — | Iowa |
| 76 | George E. Jones | 75 | Father in law | — | Minnesota |
| 77 | Forest Bruce | 47 | Head | — | Iowa |
| 78 | Minnie Bruce | 47 | Wife | — | Iowa |
| 79 | Paul Haeder | 47 | Head | — | Poland |
| 80 | Alfreda Haeder | 40 | Wife | — | Germany |
Pedigree Summary
Donald
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)