HC
Harry Cooper — 1940 US Census Record
Model Tree available1940 United States Federal Census · Henry-County, Iowa
Our Model Tree links this Harry Cooper across the 1910, 1920, 1930 and 1940 US Censuses in Henry-County, Iowa (XGBoost, ~Confirmed), with identified parents Charles & Henrietta — first a head (b.~1888), then head of a 4-person household.
Age 52
b. ~1888
Male
Head
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Henry-County, Iowa |
| Surname | Cooper |
| Given Name | Harry |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | S house |
| 1935 Residence (County) | S house |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farmer |
| Class of Worker | OA |
| Hours Worked | 52 |
| Income (1939) | 0 |
| Highest Grade | H-2 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Farmer |
| Township / Ward | Salem |
| Est. Birth Year | ~1888 |
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 Harry | Age | Birth yr |
|---|---|---|---|---|
| Minnie Cooper | Spouse | — | 48 | ~1892 |
| Marcellus Cooper | Son | — | 24 | ~1916 |
| Harry Cooper | Head | — | 52 | ~1888 |
| Wilbur Cooper | Son | — | 17 | ~1923 |
Census Appearances
1910
Henry, Iowa
Son, age 22
Henry, Iowa · implied b. ~1888 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cooper |
| Given Name | Harry T |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | Farmer |
| Industry | Home Farm |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1920
Henry, Iowa
Head, age 31
Henry, Iowa · implied b. ~1889 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cooper |
| Given Name | Harry |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | F |
| Birth State | Iowa |
| Birth Country | United States |
| Year of Naturalization | O |
| Birthplace (normalized) | iowa |
1930
Henry, Iowa
Head, age 42
Henry, Iowa · implied b. ~1888 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cooper |
| Given Name | Harry T. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 21 |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | Farmer |
| Industry | Gen. Farm |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Radio Set | R |
| Veteran | No |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Henry-County, Iowa
Head, age 52
Henry-County, Iowa · implied b. ~1888 — 4 household members
| Surname | Cooper |
| Given Name | Harry |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | S house |
| 1935 Residence (County) | S house |
| Occupation | Farmer |
| Industry | Farmer |
| Class of Worker | OA |
| Hours Worked | 52 |
| Income (1939) | 0 |
| Highest Grade | H-2 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 Harry Cooper across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Charles Cooper (~0.92 confidence) and mother Henrietta Cooper (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Charles Cooper
b. ~1862
Source father
● Household
· direct · ~0.92
Mother
Henrietta Cooper
b. ~1870
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Harry Cooper
Head · 1940 · age 52 · b. ~1888 · Iowa
★ 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 — Henry-County, Iowa
Open full size
1940 US Federal Census — Henry-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01166-01114)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Della Glendenning | 54 | Wife | — | Iowa |
| 42 | David Fisher | 20 | Nephew | Farmer | Iowa |
| 43 | Vivian Fisher | 11 | Niece | — | Iowa |
| 44 | Ruth Nyberg | 45 | Head | Housework | Iowa |
| 45 | John Pidgeon | 69 | Head | Farmer | Iowa |
| 46 | Eva Pidgeon | 67 | Wife | — | Iowa |
| 47 | Winifred Pidgeon | 33 | Daughter | Housework | Iowa |
| 48 | William Pidgeon | 33 | Head | Farmer | Iowa |
| 49 | Cophine Pidgeon | 32 | Wife | — | Iowa |
| 50 | Warren Pidgeon | 10 | Son | — | Iowa |
| 51 | Charles Shaffner | 20 | Servant | Farmer | Iowa |
| 52 | Bert Mcdowell | 62 | Head | Farmer | Iowa |
| 53 | Florence Mcdowell | 59 | Wife | — | Iowa |
| 54 | Leo Mcdowell | 30 | Son | Farmer | Iowa |
| 55 | Orville Mcdowell | 18 | Son | Farmer | Iowa |
| 56 | Harry Cooper THIS PERSON | 52 | Head | Farmer | Iowa |
| 57 | Minnie Cooper | 48 | Wife | — | Iowa |
| 58 | Marcellus Cooper | 24 | Son | Farmer | Iowa |
| 59 | Wilbur Cooper | 17 | Son | Farmer | Iowa |
| 60 | Geo Triska | 35 | Head | Farmer | Iowa |
| 61 | Clara Triska | 26 | Wife | — | Iowa |
| 62 | Robert Triska | 11 | Son | — | Iowa |
| 63 | William Triska | 10 | Son | — | Iowa |
| 64 | Richard Triska | 8 | Son | — | Iowa |
| 65 | Milo Thompson | 47 | Head | Farmer | Iowa |
| 66 | Pauline Thompson | 47 | Wife | Housewife | Iowa |
| 67 | Richard Thompson | 16 | Son | School | Iowa |
| 68 | Eleanor Thompson | 14 | Daughter | School | Iowa |
| 69 | John Thompson | 12 | Son | School | Iowa |
| 70 | William Moeller | 68 | Head | Farmer | Iowa |
| 71 | Christina Moeller | 64 | Wife | Housewife | Iowa |
| 72 | Leonard Moeller | 24 | Son | Farmer | Iowa |
| 73 | Bernard Wallingford | 24 | Head | Farmer | Iowa |
| 74 | Viola Wallingford | 22 | Wife | Housewife | Iowa |
| 75 | Robert Wallingford | 2 | Son | — | Iowa |
| 76 | Edward Wallingford | 1 | Son | — | Iowa |
| 77 | Claude Byers | 62 | Head | Farmer | Iowa |
| 78 | Laura Byers | 56 | Wife | — | Iowa |
| 79 | Earl Clawson | 56 | Head | Farmer | Iowa |
| 80 | Julia Clawson | 50 | Wife | — | Illinois |
Pedigree Summary
Harry
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)