AM
Anna Martin — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Hamilton-County, Iowa
Our Model Tree links this Anna Martin across the 1920, 1930 and 1940 US Censuses in Hamilton-County, Iowa (XGBoost, ~Confirmed) — first a spouse (b.~1891), then head of a 5-person household.
Age 49
b. ~1891
Female
Spouse
Born: South Dakota
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Hamilton-County, Iowa |
| Surname | Martin |
| Given Name | Anna |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | South Dakota |
| 1935 Residence (City) | Liberty Township |
| 1935 Residence (County) | Hamilton |
| Additional Details | |
| Highest Grade | 7 |
| 1935 Residence | Same house |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
| Township / Ward | Liberty Township |
| Est. Birth Year | ~1891 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Anna | Age | Birth yr |
|---|---|---|---|---|
| Jacqueline Martin | Daughter | — | 4 | ~1936 |
| Carl Martin | Head | — | 47 | ~1893 |
| Dewayne Martin | Son | — | 11 | ~1929 |
| Harold Martin | Son | — | 14 | ~1926 |
| Anna Martin | Spouse | — | 49 | ~1891 |
Census Appearances
1920
Hamilton, Iowa
Spouse, age 28
Hamilton, Iowa · implied b. ~1892 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Anna |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | South Dakota |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Norwegian |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
1930
Hamilton, Iowa
Spouse, age 38
Hamilton, Iowa · implied b. ~1892 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Anna |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | South Dakota |
| Age at First Marriage | 24 |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Can Read/Write | Yes |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
1940
Hamilton-County, Iowa
Spouse, age 49
Hamilton-County, Iowa · implied b. ~1891 — 5 household members
| Surname | Martin |
| Given Name | Anna |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | South Dakota |
| 1935 Residence (City) | Liberty Township |
| 1935 Residence (County) | Hamilton |
| Highest Grade | 7 |
| 1935 Residence | Same house |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
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 Anna 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
Anna Martin
Spouse · 1940 · age 49 · b. ~1891 · 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 — Hamilton-County, Iowa
Open full size
1940 US Federal Census — Hamilton-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01164-00374)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Richard Son Hanson | 4 | Son | — | Iowa |
| 2 | Dick Lentz | 67 | Head | Farmer | Illinois |
| 3 | John J. Baker | 31 | Head | Trucker | Illinois |
| 4 | Minnie Baker | 32 | Wife | — | Iowa |
| 5 | James R. Baker | 11 | Son | — | Iowa |
| 6 | Rev. Henry Henning | 54 | Head | Pastor | Iowa |
| 7 | Bertha Henning | 50 | Wife | — | South Dakota |
| 8 | Mildred Henning | 20 | Daughter | — | Iowa |
| 9 | Marjorie Henning | 14 | Daughter | — | Iowa |
| 10 | Norval Dean Henning | 8 | Son | — | Iowa |
| 11 | Simon Greenfield | 55 | Head | Farmer | Iowa |
| 12 | Eilt Greenfield | 52 | Brother | Farmer | Iowa |
| 13 | Jenny Greenfield | 47 | Sister | — | Iowa |
| 14 | Peter R. Herckes | 62 | Head | Farmer | Illinois |
| 15 | Gertie Herckes | 59 | Wife | — | Iowa |
| 16 | Alvin Pierson | 66 | Head | Farmer | Germany |
| 17 | Barbara Shirley Pierson | 11 | Granddaughter | — | Iowa |
| 18 | Roy Nelson | 42 | Hired hand | Farmer | Iowa |
| 19 | Carl J. Martin | 47 | Head | Farmer | Illinois |
| 20 | Anna Martin THIS PERSON | 49 | Wife | — | South Dakota |
| 21 | Harold L. Martin | 14 | Son | — | Iowa |
| 22 | Dewayne Martin | 11 | Son | — | Iowa |
| 23 | Jacqueline Martin | 4 | Daughter | — | Iowa |
| 24 | William R. Storey | 40 | Head | Farmer | Ohio |
| 25 | Mabel R. Storey | 45 | Wife | — | Ohio |
| 26 | Charles Storey | 14 | Son | — | Iowa |
| 27 | Ramona Storey | 9 | Daughter | — | Iowa |
| 28 | Ernest Workman | 21 | Step son | Farm Labor | Iowa |
| 29 | Henry Denekas | 58 | Head | Farmer | Iowa |
| 30 | Ocka Denekas | 58 | Wife | — | Iowa |
| 31 | Wyatt Arends | 37 | Head | Farmer | Iowa |
| 32 | Marguerite Arends | 25 | Wife | — | Iowa |
| 33 | Wyatt Jr. Arends | 1 | Son | — | Iowa |
| 34 | Sophia Arends | 69 | Head | — | Iowa |
| 35 | Calvin Arends | 30 | Son | Farmer | Iowa |
| 36 | Lawrence Stoffelmoor | 23 | Head | Farm Labor | Iowa |
| 37 | Delores Stoffelmoor | 23 | Wife | — | Iowa |
| 38 | Larry W. Stoffelmoor | 1 | Son | — | Iowa |
| 39 | Lowell D. Stoffelmoor | 0 | Son | — | Iowa |
| 40 | Carl Soneholm | 53 | Head | Farmer | 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)