MD
Maud Davis — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Polk, Iowa
Our Model Tree links this Maud Davis across the 1930 and 1940 US Censuses in Polk, Iowa (XGBoost, ~Confirmed) — first a daughter (b.~1904), then head of a 13-person household.
Age 26
b. ~1904
Female
Daughter
Born: Iowa
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Polk, Iowa |
| Surname | Davis |
| Given Name | Maud |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Iowa |
| Additional Details | |
| Occupation | Compt Operator |
| Industry | Bell Telephone |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Compt Operator |
| Township / Ward | Des Moines City |
| Est. Birth Year | ~1904 |
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.
13 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Maud | Age | Birth yr |
|---|---|---|---|---|
| Roberta King | Daughter | — | 14 | ~1916 |
| Dale Chadwick | Son | — | 1 | ~1929 |
| Bertha Fink | Spouse | — | 51 | ~1879 |
| Helen Matthews | Spouse | — | 25 | ~1905 |
| Claude Mahaffey | Son | — | 8 | ~1922 |
| Ashley Ceecone | Other | — | 21 | ~1909 |
| Madge Miller | Spouse | — | 18 | ~1912 |
| Cisco Mcrae | Other | — | 39 | ~1891 |
| Elizabeth Berry | Spouse | — | 45 | ~1885 |
| Mary Frink | Daughter | — | 1 | ~1929 |
| Maud Davis | Daughter | — | 26 | ~1904 |
| Matthew Mccall | Other | — | 58 | ~1872 |
| Francis Newman | Son | — | 14 | ~1916 |
Census Appearances
1930
Polk, Iowa
Daughter, age 26
Polk, Iowa · implied b. ~1904 — 13 household members
| Surname | Davis |
| Given Name | Maud |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Iowa |
| Occupation | Compt Operator |
| Industry | Bell Telephone |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Polk-County, Iowa
Daughter, age 36
Polk-County, Iowa · implied b. ~1904 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Maude |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 36 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Des Moines City |
| 1935 Residence (County) | Polk |
| Occupation | Policy Writer |
| Industry | Tornado Ins. |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 1000 |
| Highest Grade | H 4 |
| 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 Maud Davis across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Maud Davis
Daughter · 1930 · age 26 · b. ~1904 · Iowa
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Sibling
Mary Frink
Sibling · 1930 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Claude Mahaffey
Sibling · 1930 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dale Chadwick
Sibling · 1930 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Francis Newman
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Roberta King
Sibling · 1930 · age 14
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
1930 US Federal Census — Polk, Iowa
Open full size
1930 US Federal Census — Polk, Iowa
Page Contents
13 people indexed on this census page (ia:1930:iowacensus00reel675:0374)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 269 | Helen Matthews | 25 | Wife | Laborer | Iowa |
| 270 | Francis Newman | 14 | Son | None | Iowa |
| 271 | Madge Miller | 18 | Wife | None | Iowa |
| 273 | Mary J. Frink | 1 | Daughter | None | Iowa |
| 274 | Dale Chadwick | 1 | Son | None | Iowa |
| 275 | Roberta King | 14 | Daughter | None | Iowa |
| 276 | Ashley Ceecone | 21 | Roomer | Servant | Iowa |
| 277 | Bertha Fink | 51 | Wife | None | Indiana |
| 279 | Claude Mahaffey | 8 | Son | None | Iowa |
| 1040 | Cisco Mcrae | 39 | Roomer | Cook | Kentucky |
| 1046 | Maud Davis THIS PERSON | 26 | Daughter | Compt Operator | Iowa |
| 1060 | Elizabeth Berry | 45 | Wife | None | Iowa |
| 1067 | Matthew Mccall | 58 | Lodger | None | Irish Free State |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)