MC
Martha Campbell — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Wheeler-County, Texas
Our Model Tree links this Martha Campbell across the 1930 and 1940 US Censuses in Wheeler-County, Texas (XGBoost, ~Confirmed) — first a spouse (b.~1893), then head of a 8-person household.
Age 47
b. ~1893
Female
Spouse
Born: Oklahoma
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Wheeler-County, Texas |
| Surname | Campbell |
| Given Name | Martha |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Oklahoma |
| 1935 Residence (City) | Rural |
| 1935 Residence (County) | Wheeler |
| Additional Details | |
| Class of Worker | H |
| Income (1939) | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Texas |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
| Township / Ward | Commissioners Precinct 3 |
| 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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Martha | Age | Birth yr |
|---|---|---|---|---|
| Alice Campbell | Daughter | — | 15 | ~1925 |
| Martha Campbell | Spouse | — | 47 | ~1893 |
| Patty Campbell | Son | — | 7 | ~1933 |
| Ethel Campbell | Daughter | — | 9 | ~1931 |
| M Campbell | Head | — | 51 | ~1889 |
| Elige Campbell | Son | — | 26 | ~1914 |
| Billy Campbell | Son | — | 5 | ~1935 |
| Mary Campbell | Daughter | — | 12 | ~1928 |
Census Appearances
1930
Wheeler, Texas
Other, age 37
Wheeler, Texas · implied b. ~1893 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | Martha E. |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Oklahoma |
| Age at First Marriage | 15 |
| Father's Birthplace | Oklahoma |
| Mother's Birthplace | Oklahoma |
| Can Read/Write | Yes |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
1940
Wheeler-County, Texas
Spouse, age 47
Wheeler-County, Texas · implied b. ~1893 — 8 household members
| Surname | Campbell |
| Given Name | Martha |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Oklahoma |
| 1935 Residence (City) | Rural |
| 1935 Residence (County) | Wheeler |
| Class of Worker | H |
| Income (1939) | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Texas |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
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 Campbell across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Martha Campbell
Spouse · 1940 · age 47 · b. ~1893 · Texas
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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 — Wheeler-County, Texas
Open full size
1940 US Federal Census — Wheeler-County, Texas
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04162-00143)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | L. B. Grum | 25 | Head | Farmer | Kansas |
| 2 | Viola Grum | 28 | Wife | — | Texas |
| 3 | Linnie Grum | 2 | Daughter | — | Texas |
| 4 | Loyce Y. Grum | 1 | Son | — | Texas |
| 5 | L. B. Blocker | 41 | Head | Proprietor | Texas |
| 6 | Othella Blocker | 32 | Wife | — | Texas |
| 7 | Clyde L. Blocker | 17 | Son | Attendant | Texas |
| 8 | Cara May Blocker | 15 | Daughter | — | Wyoming |
| 9 | Idellah Blocker | 4 | Daughter | — | Texas |
| 10 | Claude Ray Blocker | 2 | Daughter | — | Texas |
| 11 | Alan B. Slavis | 38 | Head | Farmer | Texas |
| 12 | Ida E. Slavis | 38 | Wife | — | Texas |
| 13 | Kenneth Slavis | 13 | Son | — | Texas |
| 14 | Dorothy Sue Slavis | 9 | Daughter | — | Texas |
| 15 | Clifton Pugh | 26 | Head | Proprietor | Texas |
| 16 | Bessie Pugh | 21 | Wife | — | Oklahoma |
| 17 | Fay Campbell | 24 | Sister-in-law | Housekeeper | Oklahoma |
| 18 | Jerry Campbell | 19 | Brother-in-law | Attendant | Oklahoma |
| 19 | Jack L. Jones | 71 | Head | Farmer | Texas |
| 20 | Florence Jones | 52 | Wife | — | Arkansas |
| 21 | Alice Jones | 18 | Daughter | Title Clerk | Texas |
| 22 | Annie Jones | 15 | Daughter | — | Texas |
| 23 | Cleo Jones | 13 | Daughter | — | Texas |
| 24 | L. H. Knutson | 26 | Head | Labor | Oklahoma |
| 25 | Eva M. Knutson | 28 | Wife | — | Texas |
| 26 | Donald O. Knutson | 5 | Son | — | Texas |
| 27 | Stanley Knutson | 2 | Son | — | Texas |
| 28 | C. B. Chambers | 59 | Head | Caretaker | Arkansas |
| 29 | M. L. Campbell | 51 | Head | Carpenter | Arkansas |
| 30 | Martha Campbell THIS PERSON | 47 | Wife | — | Oklahoma |
| 31 | Elige Campbell | 26 | Son | Truck Driver | Oklahoma |
| 32 | Alice Campbell | 15 | Daughter | — | Oklahoma |
| 33 | Mary Campbell | 12 | Daughter | — | Texas |
| 34 | Ethel Jane Campbell | 9 | Daughter | — | Texas |
| 35 | Patty Campbell | 7 | Son | — | Texas |
| 36 | Billy L. Campbell | 5 | Son | — | Texas |
| 37 | J. H. Hardin | 54 | Head | Farmer | Texas |
| 38 | Pearl Hardin | 48 | Wife | — | Texas |
| 39 | Omalee Hardin | 16 | Daughter | — | Texas |
| 40 | T. J. Hardin | 90 | Father | — | Tenn. |
Related Census Records
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)