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Dorothy Martin — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Polk-County, Iowa
Our Model Tree links this Dorothy Martin across the 1920, 1930 and 1940 US Censuses in Polk-County, Iowa (XGBoost, ~Confirmed) — first a spouse (b.~1864), then head of a 3-person household.
Age 76
b. ~1864
Female
Spouse
Born: Germany
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Polk-County, Iowa |
| Surname | Martin |
| Given Name | Dorothy |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 76 |
| Marital Status | Married |
| Birthplace | Germany |
| 1935 Residence (City) | North West Des Moines |
| 1935 Residence (County) | Polk |
| Naturalization Status | Naturalized |
| Additional Details | |
| Highest Grade | No 4 |
| 1935 Residence | Same house |
| Birth Country | Germany |
| Birthplace (normalized) | germany |
| Township / Ward | North West Des Moines |
| Est. Birth Year | ~1864 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Dorothy | Age | Birth yr |
|---|---|---|---|---|
| Freda Sternburg | Daughter | — | 42 | ~1898 |
| John Martin | Head | — | 76 | ~1864 |
| Dorothy Martin | Spouse | — | 76 | ~1864 |
Census Appearances
1920
Polk, Iowa
Spouse, age 56
Polk, Iowa · implied b. ~1864 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Dorilea |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | Germany |
| Year of Immigration | 1879 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Alsace-Lorraine |
| Mother's Birthplace | Germany |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | German |
| Birth Country | Germany |
| Year of Naturalization | 1885 |
| Birthplace (normalized) | germany |
1930
Polk, Iowa
Other, age 66
Polk, Iowa · implied b. ~1864 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Dorothy |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 66 |
| Marital Status | Married |
| Birthplace | Germany |
| Naturalization Status | Naturalized |
| Year of Immigration | 1880 |
| Age at First Marriage | 22 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Can Read/Write | Yes |
| Mother Tongue | German |
| Birth Country | Germany |
| Birthplace (normalized) | germany |
1940
Polk-County, Iowa
Spouse, age 76
Polk-County, Iowa · implied b. ~1864 — 3 household members
| Surname | Martin |
| Given Name | Dorothy |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 76 |
| Marital Status | Married |
| Birthplace | Germany |
| 1935 Residence (City) | North West Des Moines |
| 1935 Residence (County) | Polk |
| Naturalization Status | Naturalized |
| Highest Grade | No 4 |
| 1935 Residence | Same house |
| Birth Country | Germany |
| Birthplace (normalized) | germany |
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 Dorothy Martin across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Dorothy Martin
Spouse · 1940 · age 76 · b. ~1864 · Iowa
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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
40 people indexed on this census page (nara:1940:m-t0627-01192-00946)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Roy D Bethard | 35 | Head | Attendant | Iowa |
| 2 | Lorena Bethard | 31 | Wife | None | Iowa |
| 3 | Beverly Bethard | 10 | Daughter | — | Iowa |
| 4 | Betty Bethard | 6 | Daughter | — | Iowa |
| 5 | Roy Jr. Bethard | 5 | Son | — | Iowa |
| 6 | M. H. Condon | 59 | Head | Carpenter | Iowa |
| 7 | Daisy Condon | 52 | Wife | — | Iowa |
| 8 | E. Harry Kappleman | 29 | Head | Salesman | Iowa |
| 9 | Helen Kappleman | 24 | Wife | — | Iowa |
| 10 | Joanne Kappleman | 2 | Daughter | — | Iowa |
| 11 | Lena Taylor | 20 | Lodger | Stenographer | Iowa |
| 12 | Albert A. Dahlien | 60 | Head | Barber | Iowa |
| 13 | Alice Dahlien | 59 | Wife | — | Iowa |
| 14 | Charlotte Tomlinson | 78 | Mother-in-law | — | Iowa |
| 15 | Margrett Williams | 48 | Sister-in-law | Bookkeeper | Iowa |
| 16 | C. Warren Harris | 38 | Head | Attendant | Iowa |
| 17 | Ruth Harris | 38 | Wife | — | Iowa |
| 18 | Donald Harris | 15 | Son | — | Iowa |
| 19 | Fred Harris | 11 | Son | — | Iowa |
| 20 | Georgeanne Harris | 6 | Daughter | — | Iowa |
| 21 | Ross Charles | 50 | Head | Contractor | Ohio |
| 22 | Minnie Charles | 58 | Wife | — | Nebraska |
| 23 | Marjorie Charles | 17 | Daughter | — | Iowa |
| 24 | John Nelson | 53 | Lodger | Laborer | Sweden |
| 25 | Owen Baldwin | 22 | Head | Mechanic | Iowa |
| 26 | Francis Baldwin | 20 | Wife | — | Missouri |
| 27 | Billy Baldwin | 2 | Son | — | Iowa |
| 28 | Thomas Weir | 25 | Head | Artist | So. Dakota |
| 29 | Marie Weir | 24 | Wife | — | Nebraska |
| 30 | Thomas Jr. Weir | 4 | Son | — | Iowa |
| 31 | Karen Weir | 0 | Daughter | — | Iowa |
| 32 | William A. Fallon | 42 | Head | Salesman | Iowa |
| 33 | Amelia Fallon | 46 | Wife | — | Illinois |
| 34 | Lorraine Fallon | 18 | Daughter | — | Iowa |
| 35 | William J. Fallon | 15 | Son | — | Ill |
| 36 | John R. Martin | 76 | Head | — | Scotland |
| 37 | Dorothy Martin THIS PERSON | 76 | Wife | — | Germany |
| 38 | Freda Sternburg | 42 | Daughter | Stenographer | Iowa |
| 39 | F. Lynn Selover | 30 | Head | Laborer | Missouri |
| 40 | Madelyn Selover | 30 | Wife | — | 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)