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Charles Armstrong — 1940 US Census Record
Model Tree available1940 United States Federal Census · Hamilton-County, Ohio
Our Model Tree links this Charles Armstrong across the 1920, 1930 and 1940 US Censuses in Hamilton-County, Ohio (XGBoost, ~Confirmed), with identified parents Fred & Etta — first a head (b.~1900), then head of a 4-person household.
Age 40
b. ~1900
Male
Head
Born: Ohio
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Hamilton-County, Ohio |
| Surname | Armstrong |
| Given Name | Charles D. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | Norwood |
| 1935 Residence (County) | Hamilton |
| Additional Details | |
| Occupation | Machinist |
| Industry | Mach. Tool Co. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1600 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Machinist |
| Township / Ward | Norwood |
| Est. Birth Year | ~1900 |
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 Charles | Age | Birth yr |
|---|---|---|---|---|
| Eugene Armstrong | Son | — | 16 | ~1924 |
| Charles Armstrong | Head | — | 40 | ~1900 |
| Jack Armstrong | Son | — | 14 | ~1926 |
| May Armstrong | Spouse | — | 35 | ~1905 |
Census Appearances
1920
Hamilton, Ohio
Son, age 19
Hamilton, Ohio · implied b. ~1901 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Armstrong |
| Given Name | Charles L |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | Machinist |
| Industry | Machine Co |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Hamilton, Ohio
Head, age 29
Hamilton, Ohio · implied b. ~1901 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Armstrong |
| Given Name | Charles L. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Ohio |
| Age at First Marriage | 21 |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | Machinist |
| Industry | Baking Machine Co. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 8,000 |
| Radio Set | R |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Hamilton-County, Ohio
Head, age 40
Hamilton-County, Ohio · implied b. ~1900 — 4 household members
| Surname | Armstrong |
| Given Name | Charles D. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | Norwood |
| 1935 Residence (County) | Hamilton |
| Occupation | Machinist |
| Industry | Mach. Tool Co. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1600 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
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 Fred Armstrong (~0.92 confidence) and mother Etta Armstrong (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Fred Armstrong
b. ~1874
Source father
● Household
· direct · ~0.92
Mother
Etta Armstrong
b. ~1874
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Charles Armstrong
Head · 1940 · age 40 · b. ~1900 · Ohio
★ 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 — Hamilton-County, Ohio
Open full size
1940 US Federal Census — Hamilton-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03078-00870)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Joseph R. Shields | 20 | Son | Typist | Ohio |
| 42 | Florence Kuebler | 53 | Head | — | Ohio |
| 43 | Viola Kuebler | 26 | Son | Meat Cutter | Ohio |
| 44 | Betty Kuebler | 23 | Daughter | Steno. | Ohio |
| 45 | George Korb | 66 | Head | Salesman | Ohio |
| 46 | Phila Korb | 64 | Wife | — | Ohio |
| 47 | Fred Plogman | 72 | Head | — | Germany |
| 48 | Alfred G. Keller | 45 | Head | Machinist | Ohio |
| 49 | Marie Keller | 45 | Wife | — | Ohio |
| 50 | Ruth Keller | 20 | Daughter | Assembler | Ohio |
| 51 | Edwin Keller | 17 | Son | Steno. | Ohio |
| 52 | Virginia Keller | 15 | Daughter | — | Ohio |
| 53 | William Keller | 12 | Son | — | Ohio |
| 54 | Martha Keller | 7 | Daughter | — | Ohio |
| 55 | Harry Buchholz | 23 | Head | Retired | Ohio |
| 56 | Elizabeth Buchholz | 60 | Wife | — | Germany |
| 57 | Arthur Evans | 62 | Head | Barber | Ohio |
| 58 | Clara Evans | 62 | Wife | — | Ohio |
| 59 | Charles D. Armstrong THIS PERSON | 40 | Head | Machinist | Ohio |
| 60 | May Armstrong | 35 | Wife | — | Colorado |
| 61 | Eugene Armstrong | 16 | Son | — | Ohio |
| 62 | Jack Armstrong | 14 | Son | — | Ohio |
| 63 | George A. Orth | 68 | Head | Maintainer | Ohio |
| 64 | Early Orth | 67 | Wife | — | Ohio |
| 65 | Robert Draker | 23 | Head | Machinist | Ohio |
| 66 | Virginia Draker | 22 | Wife | Assorter | Ohio |
| 67 | Arnold Wright | 45 | Head | Yard Cond. | Ohio |
| 68 | Sophia Wright | 58 | Wife | — | Ohio |
| 69 | Adolf Cich | 60 | Head | Plant Supt. | Ohio |
| 70 | Elizabeth Cich | 45 | Wife | — | Ohio |
| 71 | Elizabeth Mushaben | 67 | Mother-in-law | — | Ohio |
| 72 | Ralph Dusenberry | 27 | Head | Draftsman | Ohio |
| 73 | Cecilia Dusenberry | 29 | Wife | — | Ohio |
| 74 | Claire Ann Dusenberry | 1 | Daughter | — | Ohio |
| 75 | Sara Miller | 42 | Head | — | Ohio |
| 76 | Frank Jr. Miller | 21 | Son | Truck Driver | Ohio |
| 77 | Margie Miller | 18 | Daughter | House Keeper | Ohio |
| 78 | John Miller | 16 | Son | — | Ohio |
| 79 | Jean Miller | 14 | Daughter | — | Ohio |
| 80 | Robert Miller | 10 | Son | — | Ohio |
Pedigree Summary
Charles
Gen 1 · 2 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)