HA
Harold Anderson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Wapello-County, Iowa
Our Model Tree links this Harold Anderson across the 1920, 1930 and 1940 US Censuses in Wapello-County, Iowa (XGBoost, ~Confirmed), with identified parents Carl & Carl — first a son (b.~1917), then head of a 4-person household.
Age 23
b. ~1917
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Wapello-County, Iowa |
| Surname | Anderson |
| Given Name | Harold |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Ottumwa City |
| 1935 Residence (County) | Wapello |
| Additional Details | |
| Occupation | Clerk |
| Industry | Meat Packing Pl. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1178 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Clerk |
| Township / Ward | Ottumwa City |
| Est. Birth Year | ~1917 |
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 |
|---|---|---|---|---|
| Carl Anderson | Head | — | 50 | ~1890 |
| Donald Anderson | Son | — | 17 | ~1923 |
| Harold Anderson | Son | — | 23 | ~1917 |
| Nellie Anderson | Spouse | — | 44 | ~1896 |
Census Appearances
1920
Wapello, Iowa
Son, age 2
Wapello, Iowa · implied b. ~1918 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Anderson |
| Given Name | Harold M |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Wapello, Iowa
Son, age 12
Wapello, Iowa · implied b. ~1918 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Anderson |
| Given Name | Harold M. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Wapello-County, Iowa
Son, age 23
Wapello-County, Iowa · implied b. ~1917 — 4 household members
| Surname | Anderson |
| Given Name | Harold |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Ottumwa City |
| 1935 Residence (County) | Wapello |
| Occupation | Clerk |
| Industry | Meat Packing Pl. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1178 |
| Highest Grade | H-4 |
| 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 Harold Anderson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Carl Anderson (~0.92 confidence) and father Carl Anderson (~0.92 confidence) and father Carl Anderson (~0.92 confidence) and mother Nellie Anderson (~0.92 confidence) and mother Nellie Anderson (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Carl Anderson
b. ~1884
Source father
● Household
· direct · ~0.92
Father
Carl Anderson
b. ~1890
Source father
● Household
· direct · ~0.92
Father
Carl Anderson
b. ~1890
Source father
● Household
· direct · ~0.92
Mother
Nellie Anderson
b. ~1896
Source mother
● Household
· direct · ~0.92
Mother
Nellie Anderson
b. ~1896
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Harold Anderson
Son · 1940 · age 23 · b. ~1917 · Iowa
★ You are viewing this record
Sibling
Donald Anderson
Sibling · 1940 · age 17
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 — Wapello-County, Iowa
Open full size
1940 US Federal Census — Wapello-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01209-00351)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Shirley Anderson | 9 | Daughter | — | Iowa |
| 42 | Lloyd Anderson | 7 | Son | — | Iowa |
| 43 | John Wirenburgh | 40 | Head | Killer | Iowa |
| 44 | Mellissa Wirenburgh | 83 | Mother | — | Iowa |
| 45 | Hurl Shaub | 19 | Nephew | — | Iowa |
| 46 | Joe Dachkowski | 32 | Head | Pickler | Germany |
| 47 | Hazel Dachkowski | 29 | Wife | — | Iowa |
| 48 | Joseph Jr. Dachkowski | 12 | Son | — | Iowa |
| 49 | James Edward Dachkowski | 10 | Son | — | Iowa |
| 50 | Mary Ellen Dachkowski | 7 | Daughter | — | Iowa |
| 51 | Donald Wayne Dachkowski | 4 | Son | — | Iowa |
| 52 | Patricia Anne Dachkowski | 2 | Daughter | — | Iowa |
| 53 | Johnny Jones | 20 | Brother-in-law | Laborer | Iowa |
| 54 | William Wire | 25 | Head | Stenographer | Iowa |
| 55 | Viola Wire | 25 | Wife | — | Iowa |
| 56 | William Horne | 75 | Head | Machinist | Virginia |
| 57 | Mabel Horne | 44 | Wife | — | Iowa |
| 58 | Patsy Horne | 18 | Daughter | Maid | Iowa |
| 59 | Duane Horne | 14 | Son | — | Iowa |
| 60 | Susan Horne | 11 | Daughter | — | Iowa |
| 61 | Loretta Horne | 6 | Grand-daughter | — | Iowa |
| 62 | Rosie Horne | 78 | Sister | — | Virginia |
| 63 | Carl Anderson | 50 | Head | Export Clerk | Iowa |
| 64 | Nellie Anderson | 44 | Wife | — | Iowa |
| 65 | Harold Anderson THIS PERSON | 23 | Son | Clerk | Iowa |
| 66 | Donald Anderson | 17 | Son | — | Iowa |
| 67 | Rodney Ervin | 30 | Head | Rural Mail Carrier | Iowa |
| 68 | Mary Ervin | 29 | Wife | — | Iowa |
| 69 | Duaine Ervin | 6 | Son | — | Iowa |
| 70 | Joan Ervin | 1 | Daughter | — | Iowa |
| 71 | Gilbert Burnaugh | 31 | Head | Proprietor | Iowa |
| 72 | Louise Burnaugh | 27 | Wife | — | Iowa |
| 73 | Marilyn Burnaugh | 3 | Daughter | — | Iowa |
| 74 | Jerry Burnaugh | 1 | Son | — | Iowa |
| 75 | Russell Zimmer | 26 | Head | Laborer | Iowa |
| 76 | Doris Zimmer | 22 | Wife | — | Iowa |
| 77 | Armant Stuevel | 68 | Head | — | Iowa |
| 78 | Lauretta Stuevel | 43 | Daughter | — | Iowa |
| 79 | Thomas Anderson | 24 | Head | Laborer | Iowa |
| 80 | Ina R. Anderson | 23 | Wife | Laborer | Iowa |
Pedigree Summary
Harold + 1 sibling
Gen 1 · 5 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)