MC
Martha Campbell — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Otero-County, Colorado
Our Model Tree links this Martha Campbell across the 1930 and 1940 US Censuses in Otero-County, Colorado (XGBoost, ~Confirmed) — first a spouse (b.~1903), then head of a 8-person household.
Age 37
b. ~1903
Female
Spouse
Born: Oklahoma
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Otero-County, Colorado |
| Surname | Campbell |
| Given Name | Martha |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Oklahoma |
| 1935 Residence (City) | North La Junta |
| 1935 Residence (County) | Otero |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same Place |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
| Township / Ward | North La Junta |
| Est. Birth Year | ~1903 |
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 |
|---|---|---|---|---|
| D Campbell | Daughter | — | 9 | ~1931 |
| E Campbell | Head | — | 40 | ~1900 |
| G Campbell | Son | — | 12 | ~1928 |
| L Campbell | Son | — | 14 | ~1926 |
| Martha Campbell | Spouse | — | 37 | ~1903 |
| L Campbell | Son | — | 2 | ~1938 |
| E Campbell | Son | — | 16 | ~1924 |
| R Campbell | Daughter | — | 6 | ~1934 |
Census Appearances
1930
Otero, Colorado
Spouse, age 27
Otero, Colorado · implied b. ~1903 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | Martha A. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Oklahoma |
| Age at First Marriage | 19 |
| Father's Birthplace | Texas |
| Mother's Birthplace | Iowa |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
1940
Otero-County, Colorado
Spouse, age 37
Otero-County, Colorado · implied b. ~1903 — 8 household members
| Surname | Campbell |
| Given Name | Martha |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Oklahoma |
| 1935 Residence (City) | North La Junta |
| 1935 Residence (County) | Otero |
| Class of Worker | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same Place |
| 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.
Show:
This person
Anchor record
Martha Campbell
Spouse · 1940 · age 37 · b. ~1903 · Colorado
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Otero-County, Colorado
Open full size
1940 US Federal Census — Otero-County, Colorado
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00473-00098)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Fred Brant | 18 | Son | Laborer | Colorado |
| 42 | Gilbert Brant | 13 | Son | — | Colorado |
| 43 | Norma Brant | 9 | Daughter | — | Colorado |
| 44 | George Casebolt | 24 | Head | Machinist Apprentice | Missouri |
| 45 | Johnie Casebolt | 24 | Wife | — | Texas |
| 46 | John Casebolt | 3 | Son | — | Colorado |
| 47 | Betty Casebolt | 1 | Daughter | — | Colorado |
| 48 | P. Fred Payne | 43 | Head | Laborer | Missouri |
| 49 | Elizabeth Payne | 38 | Wife | — | Oklahoma |
| 50 | Cecil Payne | 19 | Son | — | Oklahoma |
| 51 | August Reinhardt | 68 | Head | — | Illinois |
| 52 | Katherine Reinhardt | 62 | Wife | — | Illinois |
| 53 | F. William Parrish | 64 | Head | Laborer | Illinois |
| 54 | May Parrish | 64 | Wife | — | Texas |
| 55 | Edda Andrews | 62 | Head | — | Virginia |
| 56 | Susan Andrews | 85 | Mother | — | Virginia |
| 57 | Ernest Rigdon | 28 | Head | Laborer | Kansas |
| 58 | Juanita Rigdon | 29 | Wife | — | Kansas |
| 59 | Herbert Fletcher | 44 | Head | Buttermaker | Tennessee |
| 60 | Lora Fletcher | 42 | Wife | — | Tennessee |
| 61 | Shirley Hopkins | 24 | Cousin | Laborer | Tennessee |
| 62 | E. Miles Campbell | 40 | Head | Machinist Helper | Missouri |
| 63 | Martha Campbell THIS PERSON | 37 | Wife | — | Oklahoma |
| 64 | E. John Campbell | 16 | Son | — | Colorado |
| 65 | L. Charles Campbell | 14 | Son | — | Missouri |
| 66 | G. Donald Campbell | 12 | Son | — | Kansas |
| 67 | D. Martha Campbell | 9 | Daughter | — | Colorado |
| 68 | R. Helen Campbell | 6 | Daughter | — | Colorado |
| 69 | L. Curtis Campbell | 2 | Son | — | Colorado |
| 70 | F. David Hollar | 70 | Head | — | Indiana |
| 71 | Mary Hollar | 67 | Wife | — | Missouri |
| 72 | J. Newton Henson | 32 | Head | Foreman | Oklahoma |
| 73 | Iruel Henson | 29 | Wife | — | Colorado |
| 74 | Geraldine Henson | 6 | Daughter | — | Colorado |
| 75 | Donald Henson | 3 | Son | — | Colorado |
| 76 | George Zellers | 67 | Head | — | Pennsylvania |
| 77 | Lula Zellers | 66 | Wife | — | Nebraska |
| 78 | Earl Sale | 48 | Hired Hand | Laborer | Missouri |
| 79 | J. Sherman Strauch | 67 | Head | Farmer | Ohio |
| 80 | Pearl Strauch | 50 | Wife | — | North Carolina |
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)