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Harold Miller — 1940 US Census Record
Model Tree available1940 United States Federal Census · Clayton-County, Iowa
Our Model Tree links this Harold Miller across the 1920, 1930 and 1940 US Censuses in Clayton-County, Iowa (XGBoost, ~Confirmed), with identified parents Marion & Martha — first a head (b.~1909), then head of a 4-person household.
Age 31
b. ~1909
Male
Head
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Clayton-County, Iowa |
| Surname | Miller |
| Given Name | Harold W. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Clayton |
| Additional Details | |
| Occupation | farm operator |
| Industry | farm |
| Class of Worker | OA |
| Hours Worked | 72 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Farm Operator |
| Township / Ward | Mallory Twp |
| Est. Birth Year | ~1909 |
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 Harold | Age | Birth yr |
|---|---|---|---|---|
| Karen Miller | Daughter | — | 2 | ~1938 |
| Harold Miller | Head | — | 31 | ~1909 |
| H Miller | Son | — | 4 | ~1936 |
| Jeanne Miller | Spouse | — | 29 | ~1911 |
Census Appearances
1920
Clayton, Iowa
Son, age 11
Clayton, Iowa · implied b. ~1909 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Miller |
| Given Name | Herald W |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Clayton, Iowa
Son, age 21
Clayton, Iowa · implied b. ~1909 — 30 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Miller |
| Given Name | Harold W |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | Laborer |
| Industry | General Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Clayton-County, Iowa
Head, age 31
Clayton-County, Iowa · implied b. ~1909 — 4 household members
| Surname | Miller |
| Given Name | Harold W. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Clayton |
| Occupation | farm operator |
| Industry | farm |
| Class of Worker | OA |
| Hours Worked | 72 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Iowa |
| 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 Harold Miller across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Marion Miller (~0.82 confidence) and mother Martha Miller (~0.82 confidence) and father Donald Miller (~0.92 confidence) and mother Annie Miller (~0.92 confidence) and father Frank Miller (~0.92 confidence). The pedigree spans 2 generations with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.88
Father
Marion Miller
b. ~1853
Source father>father
● Household
· direct · ~0.82
Mother
Martha Miller
b. ~1857
Source father>mother
● Household
· direct · ~0.82
Father
Donald Miller
b. ~1881
Source father
● Household
· direct · ~0.92
Mother
Annie Miller
b. ~1885
Source mother
● Household
· direct · ~0.92
Father
Frank Miller
b. ~1892
Source father
● Household
· direct · ~0.92
This person
Anchor record
Harold Miller
Head · 1940 · age 31 · b. ~1909 · 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 — Clayton-County, Iowa
Open full size
1940 US Federal Census — Clayton-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01149-00443)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Seymour Horsington | 32 | Lodger | Laborer | Iowa |
| 42 | Edgar C. Pensel | 28 | Head | Farm Operator | Iowa |
| 43 | Marie Pensel | 25 | Wife | — | Iowa |
| 44 | Wallace A. Pensel | 4 | Son | — | Iowa |
| 45 | Kenneth Pensel | 2 | Son | — | Iowa |
| 46 | Frank W. Miller | 48 | Head | Farmer | Iowa |
| 47 | Elsie R. Miller | 41 | Wife | — | Iowa |
| 48 | Leland F. Miller | 14 | Son | — | Iowa |
| 49 | James E. Hurd | 53 | Head | Farmer | Iowa |
| 50 | Elsie Hurd | 43 | Wife | — | Iowa |
| 51 | Nadine Hurd | 22 | Daughter | — | Iowa |
| 52 | A. Edward Hurd | 21 | Son | Farmer Helper | Iowa |
| 53 | Royce Hurd | 18 | Son | Farmer Helper | Iowa |
| 54 | Kathleen Hurd | 13 | Daughter | — | Iowa |
| 55 | Marie Hurd | 12 | Daughter | — | Iowa |
| 56 | Hulda Hurd | 10 | Daughter | — | Iowa |
| 57 | John Hurd | 8 | Son | — | Iowa |
| 58 | Jean Hurd | 3 | Daughter | — | Iowa |
| 59 | Kay Hurd | 0 | Granddaughter | — | Iowa |
| 60 | Harley A. Kite | 37 | Head | Farmer | Iowa |
| 61 | Zala G. Kite | 36 | Wife | — | Iowa |
| 62 | Allean Kite | 18 | Daughter | — | Iowa |
| 63 | Harold W. Miller THIS PERSON | 31 | Head | Farm Operator | Iowa |
| 64 | Jeanne M. Miller | 29 | Wife | — | Iowa |
| 65 | H. Kent Miller | 4 | Son | — | Iowa |
| 66 | Karen Lou Miller | 2 | Daughter | — | Iowa |
| 67 | Paul P. Schrunk | 34 | Head | Farm Operator | Iowa |
| 68 | Florence C. Schrunk | 34 | Wife | — | Iowa |
| 69 | James Schrunk | 50 | Hired hand | Farm Laborer | Iowa |
| 70 | James Hyde | 64 | Head | — | Iowa |
| 71 | Nancy J. Hyde | 63 | Wife | — | Iowa |
| 72 | Oscar Hyde | 27 | Son | Farm Operator | Iowa |
| 73 | Harry Pierce | 40 | Head | Saw Mill Operator | Iowa |
| 74 | Gladys Pierce | 33 | Wife | — | Iowa |
| 75 | Robert Pierce | 12 | Son | — | Iowa |
| 76 | Wilmer Pierce | 8 | Son | — | Iowa |
| 77 | Thomas Pierce | 6 | Son | — | Iowa |
| 78 | Myrtle Pierce | 5 | Daughter | — | Wisconsin |
| 79 | Janet Pierce | 1 | Daughter | — | Iowa |
| 80 | Jean Pierce | 1 | Daughter | — | Iowa |
Pedigree Summary
Harold
Gen 1 · 3 parents
~0.92
Gen 2 · 2 grandparents
~0.82
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)