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Charles Armstrong — 1940 US Census Record
Model Tree available1940 United States Federal Census · Warren-County, Pennsylvania
Our Model Tree links this Charles Armstrong across the 1920, 1930 and 1940 US Censuses in Warren-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Charles & Mary — first a son (b.~1913), then head of a 5-person household.
Age 27
b. ~1913
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Warren-County, Pennsylvania |
| Surname | Armstrong |
| Given Name | Charles P. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Warren |
| 1935 Residence (County) | Warren |
| Additional Details | |
| Occupation | Public Accountant |
| Industry | All firms |
| Class of Worker | PW |
| Hours Worked | 43 |
| Income (1939) | 850 |
| Highest Grade | C 4 |
| 1935 Residence | Same house |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Public Accountant |
| Township / Ward | Warren |
| 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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Charles | Age | Birth yr |
|---|---|---|---|---|
| Charles Armstrong | Son | — | 27 | ~1913 |
| Margaret Donahue | Other | — | 54 | ~1886 |
| Mary Armstrong | Head | — | 58 | ~1882 |
| Anna Donahue | Other | — | 56 | ~1884 |
| Evelyn Armstrong | Daughter | — | 30 | ~1910 |
Census Appearances
1920
Warren, Pennsylvania
Son, age 6
Warren, Pennsylvania · implied b. ~1914 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Armstrong |
| Given Name | Charles P. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Warren, Pennsylvania
Son, age 17
Warren, Pennsylvania · implied b. ~1913 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Armstrong |
| Given Name | Charles P |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Warren-County, Pennsylvania
Son, age 27
Warren-County, Pennsylvania · implied b. ~1913 — 5 household members
| Surname | Armstrong |
| Given Name | Charles P. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Warren |
| 1935 Residence (County) | Warren |
| Occupation | Public Accountant |
| Industry | All firms |
| Class of Worker | PW |
| Hours Worked | 43 |
| Income (1939) | 850 |
| Highest Grade | C 4 |
| 1935 Residence | Same house |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 Charles Armstrong across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Charles Armstrong (~0.92 confidence) and mother Mary Armstrong (~0.92 confidence) and mother Mary Armstrong (~0.92 confidence) and mother Mary Armstrong (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Charles Armstrong
b. ~1848
Source father
● Household
· direct · ~0.92
Mother
Mary Armstrong
b. ~1849
Source mother
● Household
· direct · ~0.92
Mother
Mary Armstrong
b. ~1882
Source mother
● Household
· direct · ~0.92
Mother
Mary Armstrong
b. ~1881
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Charles Armstrong
Son · 1940 · age 27 · b. ~1913 · Pennsylvania
★ You are viewing this record
Sibling
Evelyn Armstrong
Sibling · 1940 · age 30
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 — Warren-County, Pennsylvania
Open full size
1940 US Federal Census — Warren-County, Pennsylvania
Page Contents
22 people indexed on this census page (nara:1940:m-t0627-03619-00361)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Marion B. Hagerman | 28 | Wife | — | Pennsylvania |
| 42 | Mary J. Hagerman | 2 | Daughter | — | Pennsylvania |
| 43 | Mary H. Armstrong | 58 | Head | — | Pennsylvania |
| 44 | Evelyn Armstrong | 30 | Daughter | Bookkeeper | Pennsylvania |
| 45 | Charles P. Armstrong THIS PERSON | 27 | Son | Public Accountant | Pennsylvania |
| 46 | Anna E. Donahue | 56 | Sister | Bookkeeper | Pennsylvania |
| 47 | Margaret J. Donahue | 54 | Sister | Stenographer | Pennsylvania |
| 48 | Warren R. Schuler | 46 | Head | Handy Man | Pennsylvania |
| 49 | Minnie D. Schuler | 45 | Wife | — | Pennsylvania |
| 50 | Gail R. Schuler | 14 | Son | — | Pennsylvania |
| 51 | William H. Duncan | 44 | Head | Painter | Pennsylvania |
| 52 | Agnes E. Duncan | 44 | Wife | — | Pennsylvania |
| 53 | Janet Ann Duncan | 18 | Daughter | Typist | Pennsylvania |
| 54 | Margaret E. Duncan | 13 | Daughter | — | Pennsylvania |
| 55 | Guy C. Johnson | 50 | Head | Accountant | Pennsylvania |
| 56 | Sara Johnson | 51 | Wife | — | Pennsylvania |
| 57 | Margaret E. Johnson | 15 | Daughter | — | Pennsylvania |
| 58 | Litner A. Carlson | 61 | Head | Drayman And Fertilizer | Pennsylvania |
| 59 | Josephine S. Carlson | 57 | Wife | — | Sweden |
| 60 | John E. Johnson | 67 | Head | Janitor | Ohio |
| 61 | E. Myrta Howling | 70 | Head | — | Pennsylvania |
| 62 | Anna Mary Howling | 41 | Daughter | Secretary | Pennsylvania |
Pedigree Summary
Charles + 1 sibling
Gen 1 · 4 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)