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Frank Armstrong — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cochise-County, Arizona
Our Model Tree links this Frank Armstrong across the 1920, 1930 and 1940 US Censuses in Cochise-County, Arizona (XGBoost, ~Confirmed), with identified parents Albert & Mamie — first a son (b.~1913), then head of a 3-person household.
Age 27
b. ~1913
Male
Son
Born: Arizona
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cochise-County, Arizona |
| Surname | Armstrong |
| Given Name | Frank |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Arizona |
| 1935 Residence (City) | Douglas Town |
| 1935 Residence (County) | Cochise |
| Additional Details | |
| Occupation | Converter man |
| Industry | Copper Smelter |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1300 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Arizona |
| Birth Country | United States |
| Birthplace (normalized) | arizona |
| Occupation | Converter Man |
| Township / Ward | Douglas Town |
| Est. Birth Year | ~1913 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Frank | Age | Birth yr |
|---|---|---|---|---|
| Mary Armstrong | Head | — | 45 | ~1895 |
| Frank Armstrong | Son | — | 27 | ~1913 |
| Ruth Armstrong | Daughter | — | 21 | ~1919 |
Census Appearances
1920
Cochise, Arizona
Son, age 8
Cochise, Arizona · implied b. ~1912 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Armstrong |
| Given Name | Frank |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Arizona |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Colorado |
| Birth State | Arizona |
| Birth Country | United States |
| Birthplace (normalized) | arizona |
1930
Cochise, Arizona
Son, age 17
Cochise, Arizona · implied b. ~1913 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Armstrong |
| Given Name | Frank |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Arizona |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Colorado |
| Occupation | Pressman Apprentice |
| Industry | Newspaper |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Arizona |
| Birth Country | United States |
| Birthplace (normalized) | arizona |
1940
Cochise-County, Arizona
Son, age 27
Cochise-County, Arizona · implied b. ~1913 — 3 household members
| Surname | Armstrong |
| Given Name | Frank |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Arizona |
| 1935 Residence (City) | Douglas Town |
| 1935 Residence (County) | Cochise |
| Occupation | Converter man |
| Industry | Copper Smelter |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1300 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Arizona |
| Birth Country | United States |
| Birthplace (normalized) | arizona |
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 Frank Armstrong across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Albert Armstrong (~0.92 confidence) and mother Mamie Armstrong (~0.92 confidence) and mother Mary Armstrong (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Albert Armstrong
b. ~1879
Source father
● Household
· direct · ~0.92
Mother
Mamie Armstrong
b. ~1889
Source mother
● Household
· direct · ~0.92
Mother
Mary Armstrong
b. ~1890
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Frank Armstrong
Son · 1940 · age 27 · b. ~1913 · Arizona
★ You are viewing this record
Sibling
Ruth Armstrong
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Cochise-County, Arizona
Open full size
1940 US Federal Census — Cochise-County, Arizona
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00100-00501)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Frances Cederson | 25 | Wife | — | Texas |
| 42 | Patrick W. Cederson | 1 | Son | — | Arizona |
| 43 | Carl W. Donnelley | 26 | Head | Laborer | Arizona |
| 44 | Lela Donnelley | 20 | Wife | — | Texas |
| 45 | Carl, Jr. Donnelley | 1 | Son | — | Arizona |
| 46 | Charlotte Donnelley | 0 | Daughter | — | Arizona |
| 47 | Wayne Williams | 27 | Head | Laborer | Texas |
| 48 | Inez Williams | 25 | Wife | — | Texas |
| 49 | Donald Wayne Williams | 6 | Son | — | Texas |
| 50 | Bennett Williams | 2 | Son | — | Texas |
| 51 | Thomas Lewis | 26 | Head | Motorman | Texas |
| 52 | Mary Lee Lewis | 24 | Wife | — | Texas |
| 53 | Charles Wayne Lewis | 3 | Son | — | Texas |
| 54 | Clara Jeanette Lewis | 1 | Daughter | — | Arizona |
| 55 | Elmer A. Spaw | 45 | Head | Conductor | Texas |
| 56 | Elmer, Jr. Spaw | 17 | Son | — | Arizona |
| 57 | Henry D. Beecroft | 34 | Head | Chamberman | Mexico |
| 58 | Mallie E. Beecroft | 35 | Wife | Assistant Cashier | Arkansas |
| 59 | Charles L. Corey | 19 | Head | Truck Driver | Arizona |
| 60 | Adely Corey | 18 | Wife | — | Arizona |
| 61 | Ed. A. Charbonneau | 66 | Head | — | French |
| 62 | Gertrude Charbonneau | 43 | Wife | Saleslady | Kentucky |
| 63 | J. P. Akers | 18 | Step-son | Clerk | Kentucky |
| 64 | Elmer Canaler | 55 | Head | — | Kentucky |
| 65 | Roy Leon Canaler | 28 | Son | Assistant Manager | Kentucky |
| 66 | Dorothy Lee Canaler | 15 | Grand-daughter | — | Arizona |
| 67 | Mary Armstrong | 45 | Head | — | Colorado |
| 68 | Frank Armstrong THIS PERSON | 27 | Son | Converter Man | Arizona |
| 69 | Ruth Armstrong | 21 | Daughter | Assistant Cashier | Arizona |
| 70 | John L. Banker | 22 | Head | Miner | Arizona |
| 71 | Ethel Banker | 20 | Wife | — | Kentucky |
| 72 | James Kelley Banker | 3 | Son | — | Arizona |
| 73 | Alvin B. Faris | 30 | Head | Sample Man | Texas |
| 74 | Lorene Faris | 27 | Wife | — | Texas |
| 75 | Marjorie Faris | 8 | Daughter | — | Texas |
| 76 | William Hixon | 23 | Head | Mechanic | Mexico |
| 77 | Transito Ochoa | 68 | Head | Bricklayer | Mexico |
| 78 | Rosa Ochoa | 63 | Wife | — | Mexico |
| 79 | Frank Cota | 30 | Step-son | Janitor | Mexico |
| 80 | Maria Cota | 21 | Step-daughter | — | Mexico |
Pedigree Summary
Frank + 1 sibling
Gen 1 · 3 parents
~0.92
Max depth 4 (1900–1950 window)
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)