MC
Mary Campbell — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Lincoln-County, Nevada
Our Model Tree links this Mary Campbell across the 1920, 1930 and 1940 US Censuses in Lincoln-County, Nevada (XGBoost, ~Confirmed) — first a head (b.~1886), then head of a 4-person household.
Age 54
b. ~1886
Female
Head
Born: Nevada
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Lincoln-County, Nevada |
| Surname | Campbell |
| Given Name | Mary E. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 54 |
| Marital Status | Widowed |
| Birthplace | Nevada |
| 1935 Residence (City) | Pioche town |
| 1935 Residence (County) | Lincoln |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Nevada |
| Birth Country | United States |
| Birthplace (normalized) | nevada |
| Township / Ward | Pioche Town |
| Est. Birth Year | ~1886 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Campbell | Head | — | 54 | ~1886 |
| Stanley Campbell | Son | — | 16 | ~1924 |
| Harwood Campbell | Son | — | 25 | ~1915 |
| Jess Campbell | Son | — | 21 | ~1919 |
Census Appearances
1920
Lincoln, Nevada
Spouse, age 33
Lincoln, Nevada · implied b. ~1887 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | Mary E |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Nevada |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | Nevada |
| Birth Country | United States |
| Birthplace (normalized) | nevada |
1930
Lincoln, Nevada
Head, age 44
Lincoln, Nevada · implied b. ~1886 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | Mary E. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 44 |
| Marital Status | Widowed |
| Birthplace | Nevada |
| Age at First Marriage | 20 |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Occupation | Engineer |
| Industry | Mining |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 1000 |
| Birth State | Nevada |
| Birth Country | United States |
| Birthplace (normalized) | nevada |
1940
Lincoln-County, Nevada
Head, age 54
Lincoln-County, Nevada · implied b. ~1886 — 4 household members
| Surname | Campbell |
| Given Name | Mary E. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 54 |
| Marital Status | Widowed |
| Birthplace | Nevada |
| 1935 Residence (City) | Pioche town |
| 1935 Residence (County) | Lincoln |
| Class of Worker | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Nevada |
| Birth Country | United States |
| Birthplace (normalized) | nevada |
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 Mary Campbell across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Campbell
Head · 1940 · age 54 · b. ~1886 · Nevada
★ 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 — Lincoln-County, Nevada
Open full size
1940 US Federal Census — Lincoln-County, Nevada
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02278-00317)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Eldon Mace | 4 | Head | — | Nevada |
| 2 | Lawrence Mace | 3 | Grandson | — | Nevada |
| 3 | Frankie Mace | 1 | Grandson | — | Nevada |
| 4 | William Cheeness|Cheeress | 33 | Roomer | Interior Painter | Colorado |
| 5 | Elwin Price | 48 | Head | — | Nevada |
| 6 | Ora Price | 37 | Wife | — | Oregon |
| 7 | Francis E. Price | 13 | Son | — | Utah |
| 8 | Kenneth L. Price | 11 | Son | — | Utah |
| 9 | James R. Price | 4 | Son | — | California |
| 10 | Alva M. Ewing | 37 | Head | Carpenter | Nevada |
| 11 | Frances M. Ewing | 31 | Wife | Cashier | Utah |
| 12 | Tony Natoli | 69 | Head | Leasing | Italy |
| 13 | William Ronnow | 35 | Head | Warden Sheriff | Nevada |
| 14 | Ellen M. Ronnow | 23 | Wife | — | Nevada |
| 15 | Gary Ronnow | 3 | Son | — | Utah |
| 16 | John W. Christian | 46 | Head | Treasurer | Utah |
| 17 | Louise Christian | 47 | Wife | — | Nevada |
| 18 | John W. Christian | 16 | Son | — | Nevada |
| 19 | Joan Christian | 7 | Daughter | — | Utah |
| 20 | Henry R. Shelley | 30 | Head | Miner | Utah |
| 21 | Christie C. Shelley | 28 | Wife | — | Utah |
| 22 | Marianna Shelley | 3 | Daughter | — | Utah |
| 23 | Sylvia Shelley | 1 | Daughter | — | Utah |
| 24 | John Ellis | 77 | Head | — | Oklahoma |
| 25 | Arthur L. Castagna | 43 | Head | Maintenance | Italy |
| 26 | John P. Bond | 60 | Head | — | Texas |
| 27 | Florence Bond | 45 | Wife | — | Canada-Eng |
| 28 | John P. Jr. Bond | 13 | Son | — | California |
| 29 | Alex Orr | 38 | Head | Heavy Driver | Nevada |
| 30 | Velda Orr | 32 | Wife | — | Nevada |
| 31 | Marilyn E. Orr | 9 | Daughter | — | Nevada |
| 32 | Betty A. Orr | 5 | Daughter | — | Nevada |
| 33 | Rosalie Orr | 2 | Daughter | — | Nevada |
| 34 | Mary E. Campbell THIS PERSON | 54 | Head | — | Nevada |
| 35 | Harwood W. Campbell | 25 | Son | Postmaster | Nevada |
| 36 | Jess O. Campbell | 21 | Son | Gravel Checker | Nevada |
| 37 | Stanley D. Campbell | 16 | Son | — | Nevada |
| 38 | Cecil M. Hartman | 39 | Head | Miner | Utah |
| 39 | Nellie H. Hartman | 35 | Wife | — | Utah |
| 40 | Gerald K. Hartman | 3 | Son | — | Utah |
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)