MR
Martha Ross — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Butte-County, South Dakota
Our Model Tree links this Martha Ross across the 1930 and 1940 US Censuses in Butte-County, South Dakota (XGBoost, ~Confirmed) — first a spouse (b.~1897), then head of a 5-person household.
Age 43
b. ~1897
Female
Spouse
Born: Wyoming
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Butte-County, South Dakota |
| Surname | Ross |
| Given Name | Martha |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Wyoming |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Butte |
| Additional Details | |
| Highest Grade | Hs 2 |
| 1935 Residence | South Dakota |
| Birth State | Wyoming |
| Birth Country | United States |
| Birthplace (normalized) | wyoming |
| Township / Ward | Belle Fourche City |
| Est. Birth Year | ~1897 |
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 Martha | Age | Birth yr |
|---|---|---|---|---|
| George Ross | Head | — | 75 | ~1865 |
| Martha Ross | Spouse | — | 43 | ~1897 |
| Wanda Ross | Daughter | — | 15 | ~1925 |
| Eleanor Ross | Daughter | — | 13 | ~1927 |
| Thomas Ross | Son | — | 10 | ~1930 |
Census Appearances
1930
Butte, South …
Spouse, age 33
Butte, South Dakota · implied b. ~1897 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ross |
| Given Name | Martha A. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Wyoming |
| Age at First Marriage | 20 |
| Father's Birthplace | United States |
| Mother's Birthplace | Wisconsin |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Wyoming |
| Birth Country | United States |
| Birthplace (normalized) | wyoming |
1940
Butte-County, South …
Spouse, age 43
Butte-County, South Dakota · implied b. ~1897 — 5 household members
| Surname | Ross |
| Given Name | Martha |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Wyoming |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Butte |
| Highest Grade | Hs 2 |
| 1935 Residence | South Dakota |
| Birth State | Wyoming |
| Birth Country | United States |
| Birthplace (normalized) | wyoming |
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 Martha Ross across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Martha Ross
Spouse · 1940 · age 43 · b. ~1897 · South 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 — Butte-County, South Dakota
Open full size
1940 US Federal Census — Butte-County, South Dakota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03850-00087)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ralph Dienstel | 2 | Son | — | South Dakota |
| 2 | Inez Dienstel | 1 | Daughter | — | South Dakota |
| 3 | Rodney Watts | 32 | Head | Labour | North Dakota |
| 4 | Katherine Watts | 23 | Wife | — | Wisconsin |
| 5 | Thomas Watts | 2 | Son | — | South Dakota |
| 6 | Katherine Kramer | 47 | Mother-in-law | — | Hungary |
| 7 | Joseph Kramer | 21 | Brother-in-law | Labour | South Dakota |
| 8 | Anton Kramer | 19 | Brother-in-law | Labour | South Dakota |
| 9 | Hanson Justice | 55 | Head | Labour | Indiana |
| 10 | Rosetta Justice | 48 | Wife | — | Wyoming |
| 11 | Betty Justice | 10 | Daughter | — | South Dakota |
| 12 | Richard Justice | 8 | Son | — | South Dakota |
| 13 | George Ross | 75 | Head | — | Colorado |
| 14 | Martha Ross THIS PERSON | 43 | Wife | — | Wyoming |
| 15 | Wanda Lee Ross | 15 | Daughter | — | South Dakota |
| 16 | Eleanor Ross | 13 | Daughter | — | South Dakota |
| 17 | Thomas Ross | 10 | Son | — | South Dakota |
| 18 | Violet William | 47 | Head | Hand Craft | Kansas |
| 19 | Dix William | 18 | Son | — | South Dakota |
| 20 | Dale William | 17 | Son | Pin Setter | Nebraska |
| 21 | George Donald | 29 | Head | Farm Hand | Montana |
| 22 | Barbara Donald | 24 | Wife | — | Montana |
| 23 | Kenneth Payne | 52 | Head | Painter | Nebraska |
| 24 | May Payne | 51 | Wife | Clerk | South Dakota |
| 25 | Claire Lemaster | 47 | Head | Manager | Nebraska |
| 26 | Elroy Lemaster | 19 | Son | — | South Dakota |
| 27 | George Webb | 22 | Lodger | Clerk | South Dakota |
| 28 | Solomon Lombard | 24 | Lodger | Salesman | Colorado |
| 29 | Clark Zink | 29 | Lodger | Clerk | South Dakota |
| 30 | Willard Vurgla | 22 | Lodger | Labourer | South Dakota |
| 31 | Helen Sloan | 13 | Lodger | — | South Dakota |
| 32 | Walter Russell | 23 | Lodger | Clerk | Wyoming |
| 33 | Peter Bautis | 36 | Lodger | Labourer | South Dakota |
| 34 | Leroy Truman | 52 | Head | Manager | Iowa |
| 35 | Mary Truman | 50 | Wife | — | Nebraska |
| 36 | Max Truman | 22 | Son | — | Iowa |
| 37 | Wilber Mcvecher | 48 | Head | Truck Driver | Ohio |
| 38 | Lena Mcvecher | 48 | Wife | — | Nebraska |
| 39 | Dale Adams | 45 | Head | Assistant Post Master | Wyoming |
| 40 | Helen Adams | 42 | Wife | — | Nebraska |
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)