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Catherine Davis — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Iowa-County, Iowa
Our Model Tree links this Catherine Davis across the 1930 and 1940 US Censuses in Iowa-County, Iowa (XGBoost, ~Confirmed) — first a daughter (b.~1928), then head of a 10-person household.
Age 12
b. ~1928
Female
Daughter
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Iowa-County, Iowa |
| Surname | Davis |
| Given Name | Catherine M |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Marengo |
| 1935 Residence (County) | Iowa |
| Additional Details | |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Marengo |
| Est. Birth Year | ~1928 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Catherine | Age | Birth yr |
|---|---|---|---|---|
| Marjel Davis | Daughter | — | 14 | ~1926 |
| Joan Davis | Daughter | — | 1 | ~1939 |
| Shirley Davis | Daughter | — | 5 | ~1935 |
| Catherine Davis | Daughter | — | 12 | ~1928 |
| Harry Davis | Head | — | 62 | ~1878 |
| Harry Davis | Son | — | 20 | ~1920 |
| James Davis | Son | — | 8 | ~1932 |
| Al Davis | Son | — | 17 | ~1923 |
| Lyle Davis | Son | — | 18 | ~1922 |
| Helen Davis | Spouse | — | 44 | ~1896 |
Census Appearances
1930
Iowa, Iowa
Daughter, age 2
Iowa, Iowa · implied b. ~1928 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Catherine M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Montana |
| Mother's Birthplace | Minnesota |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Iowa-County, Iowa
Daughter, age 12
Iowa-County, Iowa · implied b. ~1928 — 10 household members
| Surname | Davis |
| Given Name | Catherine M |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Marengo |
| 1935 Residence (County) | Iowa |
| Highest Grade | No 5 |
| 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 Catherine Davis across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Catherine Davis
Daughter · 1940 · age 12 · b. ~1928 · Iowa
★ You are viewing this record
Sibling
Harry Davis
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Al Davis
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Davis
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marjel Davis
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Shirley Davis
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lyle Davis
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joan Davis
Sibling · 1940 · age 1
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 — Iowa-County, Iowa
Open full size
1940 US Federal Census — Iowa-County, Iowa
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-01168-00357)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 42 | Harry T Davis | 62 | Head | Laborer | Montana |
| 43 | Helen Davis | 44 | Wife | — | Illinois |
| 44 | Harry Davis | 20 | Son | Laborer | Iowa |
| 45 | Lyle Davis | 18 | Son | Laborer | Iowa |
| 46 | Al Dean Davis | 17 | Son | Laborer | Iowa |
| 47 | Marjel J Davis | 14 | Daughter | — | Iowa |
| 48 | Catherine M Davis THIS PERSON | 12 | Daughter | — | Iowa |
| 49 | James Davis | 8 | Son | — | Iowa |
| 50 | Shirley J Davis | 5 | Daughter | — | Iowa |
| 51 | Joan Davis | 1 | Daughter | — | Iowa |
| 52 | Frank Lauch | 53 | Head | — | Iowa |
| 53 | Mable Blair | 53 | Head | — | Iowa |
| 54 | Fred Blair | 56 | Husband | 40 | Iowa |
| 55 | Mary Helen Blair | 15 | Daughter | — | Iowa |
| 56 | Charles Blair | 13 | Son | — | Iowa |
| 57 | Milton Blair | 23 | Son | 48 | Iowa |
| 58 | Edward Mcmann | 29 | Head | Truck Driver | Nebraska |
| 59 | Anna Mcmann | 27 | Wife | Candling Eggs | Iowa |
| 60 | Audrey Mcmann | 2 | Daughter | — | Iowa |
| 62 | William E Pepe | 52 | Head | Traveling Salesman | Illinois |
| 63 | Bess Pepe | 54 | Wife | — | Illinois |
| 64 | Barrington J Pepe | 12 | Son | — | Iowa |
| 65 | John E Keil | 55 | Head | 60 | Iowa |
| 66 | Otia Keil | 51 | Wife | — | Illinois |
| 67 | Helen Keil | 28 | Daughter | 72 | Iowa |
| 68 | Carroll D Keil | 25 | Son | 48 | Iowa |
| 69 | Rachel Keil | 22 | Daughter | — | Iowa |
| 70 | Hazel Keil | 20 | Daughter | 60 | Iowa |
| 71 | Dean Keil | 17 | Son | — | Iowa |
| 72 | Dale Keil | 12 | Son | — | Iowa |
| 73 | Herman Runke | 26 | Head | Laborer | Iowa |
| 74 | Annie Runke | 21 | Wife | — | Iowa |
| 75 | Shirley Runke | 5 | Daughter | — | Iowa |
| 76 | Joyce Runke | 1 | Daughter | — | Iowa |
| 77 | Ray Runke | 0 | Son | — | Iowa |
| 78 | Irvin A Freeborn | 44 | Head | 72 | Missouri |
| 79 | Grace Ella Freeborn | 40 | Wife | — | Minnesota |
| 80 | Charles Freeborn | 11 | Son | — | Iowa |
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)