AM
Ada Martin — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cass-County, North Dakota
Our Model Tree links this Ada Martin across the 1930 and 1940 US Censuses in Cass-County, North Dakota (XGBoost, ~Confirmed) — first a spouse (b.~1893), then head of a 10-person household.
Age 47
b. ~1893
Female
Spouse
Born: Minnesota
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cass-County, North Dakota |
| Surname | Martin |
| Given Name | Ada |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Minnesota |
| 1935 Residence (City) | Walburg Twp |
| 1935 Residence (County) | Cass |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Township / Ward | Walburg Twp |
| Est. Birth Year | ~1893 |
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 Ada | Age | Birth yr |
|---|---|---|---|---|
| William Martin | Head | — | 41 | ~1899 |
| Roger Martin | Son | — | 5 | ~1935 |
| Thompson Martin | Son | — | 11 | ~1929 |
| Virginia Martin | Daughter | — | 10 | ~1930 |
| Allan Martin | Son | — | 12 | ~1928 |
| Philip Martin | Son | — | 8 | ~1932 |
| Calvin Martin | Son | — | 14 | ~1926 |
| Weslie Martin | Son | — | 11 | ~1929 |
| Rosa Martin | Daughter | — | 5 | ~1935 |
| Ada Martin | Spouse | — | 47 | ~1893 |
Census Appearances
1930
Cass, North …
Other, age 37
Cass, North Dakota · implied b. ~1893 — 17 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Ada |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Minnesota |
| Age at First Marriage | 32 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Cass-County, North …
Spouse, age 47
Cass-County, North Dakota · implied b. ~1893 — 10 household members
| Surname | Martin |
| Given Name | Ada |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Minnesota |
| 1935 Residence (City) | Walburg Twp |
| 1935 Residence (County) | Cass |
| Class of Worker | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
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 Ada Martin across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Ada Martin
Spouse · 1940 · age 47 · b. ~1893 · North Dakota
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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 — Cass-County, North Dakota
Open full size
1940 US Federal Census — Cass-County, North Dakota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02997-00759)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Charlotte Jackson | 21 | Daughter | Housework | North Dakota |
| 42 | Barbara Jackson | 14 | Daughter | — | North Dakota |
| 43 | Jim Bartlett | 50 | Hired man | — | England |
| 44 | Clarence Olson | 54 | Head | Farmer | North Dakota |
| 45 | James Jensen | 43 | Head | Farmer | Nebraska |
| 46 | Bessie Jensen | 42 | Wife | — | Virginia |
| 47 | Theodore Jensen | 19 | Son | Farm Hand | Nebraska |
| 48 | Keith Jensen | 16 | Son | — | Nebraska |
| 49 | Kyle Jensen | 14 | Son | — | Nebraska |
| 50 | Housekeeper Census Taker At Her Home In Casselton Jensen | None | — | — | — |
| 51 | Edwin Bracht | 46 | Head | Farmer | North Dakota |
| 52 | Maude Bracht | 45 | Wife | — | Washington |
| 53 | Clayton Bracht | 18 | Son | Farm Hand | North Dakota |
| 54 | Raymond Bracht | 14 | Son | Farm Hand | North Dakota |
| 55 | Harriett Hoffman | 21 | Lodger | Teacher | North Dakota |
| 56 | Peter Steinacker | 65 | Head | Farmer | Minnesota |
| 57 | Emma Steinacker | 54 | Wife | — | North Dakota |
| 58 | Edwin Steinacker | 29 | Son | Farmer Hand | North Dakota |
| 59 | Clara Steinacker | 26 | Daughter | — | North Dakota |
| 60 | Clarence Daewert | 26 | Head | Farmer | North Dakota |
| 61 | Elizabeth Daewert | 32 | Wife | — | North Dakota |
| 62 | Albert Workman | 52 | Hired man | Farm Labor | Minnesota |
| 63 | Leo Workman | 17 | Hired man | Farm Labor | Minnesota |
| 64 | William Martin | 41 | Head | Farmer | North Dakota |
| 65 | Ada Martin THIS PERSON | 47 | Wife | — | Minnesota |
| 66 | Calvin Martin | 14 | Son | — | North Dakota |
| 67 | Allan Martin | 12 | Son | — | North Dakota |
| 68 | Weslie Martin | 11 | Son | — | North Dakota |
| 69 | Thompson Martin | 11 | Son | — | North Dakota |
| 70 | Virginia Martin | 10 | Daughter | — | North Dakota |
| 71 | Philip Martin | 8 | Son | — | North Dakota |
| 72 | Rosa Martin | 5 | Daughter | — | North Dakota |
| 73 | Roger Martin | 5 | Son | — | North Dakota |
| 74 | Gothold Gertz | 28 | Head | Farmer | North Dakota |
| 75 | Lydia Gertz | 35 | Wife | — | South Dakota |
| 76 | Milton Gertz | 5 | Son | — | North Dakota |
| 77 | Daniel Gertz | 1 | Son | — | South Dakota |
| 78 | Marie Gertz | 1 | Daughter | — | South Dakota |
| 79 | Maynard Carlson | 25 | Head | Farmer | North Dakota |
| 80 | Cecilia Carlson | 22 | Wife | — | North Dakota |
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)