EA
Earl Anderson — 1920 US Census Record
Model Tree available1920 United States Federal Census · Black Hawk, Iowa
Our Model Tree links this Earl Anderson across the 1920, 1930 and 1940 US Censuses in Black Hawk, Iowa (XGBoost, ~Confirmed), with identified parents Christ & Lena — first a son (b.~1913), then head of a 8-person household.
Age 7
b. ~1913
Male
Son
Born: Iowa
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Black Hawk, Iowa |
| Surname | Anderson |
| Given Name | Earl |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Additional Details | |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Cedar Falls City |
| 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.
8 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Earl | Age | Birth yr |
|---|---|---|---|---|
| Ida Anderson | Daughter | — | 6 | ~1914 |
| Olga Anderson | Daughter | — | 14 | ~1906 |
| Christ Anderson | Head | — | 50 | ~1870 |
| Herbert Anderson | Son | — | 20 | ~1900 |
| Earl Anderson | Son | — | 7 | ~1913 |
| Peter Anderson | Son | — | 10 | ~1910 |
| Honore Anderson | Son | — | 21 | ~1899 |
| Lena Anderson | Spouse | — | 46 | ~1874 |
Census Appearances
1920
Black Hawk, …
Son, age 7
Black Hawk, Iowa · implied b. ~1913 — 8 household members
| Surname | Anderson |
| Given Name | Earl |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Black Hawk, …
Son, age 18
Black Hawk, Iowa · implied b. ~1912 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Andersen |
| Given Name | Earl E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Occupation | Machinist |
| Industry | Pump factory |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Black-Hawk-County, Iowa
Head, age 29
Black-Hawk-County, Iowa · implied b. ~1911 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Andersen |
| Given Name | Earl E. |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Cedar Falls City |
| 1935 Residence (County) | Black Hawk |
| Occupation | Machinist |
| Industry | Tractor factory |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1600 |
| Highest Grade | Hs 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 Earl Anderson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Christ Anderson (~0.92 confidence) and mother Lena Anderson (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Christ Anderson
b. ~1870
Source father
● Household
· direct · ~0.92
Mother
Lena Anderson
b. ~1874
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Earl Anderson
Son · 1920 · age 7 · b. ~1913 · Iowa
★ You are viewing this record
Sibling
Herbert Anderson
Sibling · 1920 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Honore Anderson
Sibling · 1920 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Olga Anderson
Sibling · 1920 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ida Anderson
Sibling · 1920 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Peter Anderson
Sibling · 1920 · age 10
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
1920 US Federal Census — Black Hawk, Iowa
Open full size
1920 US Federal Census — Black Hawk, Iowa
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu478unit:0161)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Nina Kingsbury | 19 | — | — | Iowa |
| 52 | John C Peterson | 71 | Head | — | Denmark |
| 53 | Sofia B Peterson | 60 | Wife | — | Denmark |
| 54 | Arthur S Peterson | 31 | Son | Agent | Iowa |
| 55 | Maude Bozarth | 56 | Head | — | Missouri |
| 56 | Marion Bozarth | 17 | Daughter | — | Iowa |
| 57 | Roger A Bozarth | 22 | Son | — | Iowa |
| 58 | John H Arnold | 34 | Head | — | Iowa |
| 59 | Rella Arnold | 32 | Wife | Manager | Iowa |
| 60 | J. Asa Arnold | 8 | Son | — | Iowa |
| 61 | John H Arnold | 2 | Son | — | Iowa |
| 62 | Florence Arnold | 0 | Daughter | — | Iowa |
| 63 | Hans Jensen | 55 | Head | Laborer | Denmark |
| 64 | Sofie Jensen | 60 | Wife | — | Denmark |
| 65 | A. Alf Brown | 48 | Head | Vulcanizer | Minnesota |
| 66 | Delina Brown | 35 | Wife | — | Wisconsin |
| 67 | Harry Brown | 16 | Son | — | Minnesota |
| 68 | Florence Brown | 13 | Daughter | — | Minnesota |
| 69 | Helen Brown | 3 | Daughter | — | Wisconsin |
| 70 | Christ Anderson | 50 | Head | Harness Maker | Denmark |
| 71 | Lena Anderson | 46 | Wife | — | Denmark |
| 72 | Honore Anderson | 21 | Son | Baggage Man | Iowa |
| 73 | Herbert Anderson | 20 | Son | Machinist | Iowa |
| 74 | Olga Anderson | 14 | Daughter | — | Iowa |
| 75 | Peter Anderson | 10 | Son | — | Iowa |
| 76 | Earl Anderson THIS PERSON | 7 | Son | — | Iowa |
| 77 | Ida Anderson | 6 | Daughter | — | Iowa |
| 78 | Gilbert Wright | 69 | Head | — | New York |
| 79 | Mary Wright | 64 | Wife | — | Illinois |
| 80 | Ward Pierce | 42 | Head | Electric Engineer | Iowa |
| 81 | Grace Pierce | 42 | Wife | — | Iowa |
| 82 | Robert Pierce | 12 | Son | — | Iowa |
| 83 | William Pierce | 10 | Son | — | Iowa |
| 84 | Mary Anne Walters | 79 | Head | — | Switzerland |
| 85 | Jens C Hansen | 60 | Head | Farmer | Denmark |
| 86 | Hannah Hansen | 49 | Sister | — | Denmark |
| 87 | Cecelia Hansen | 71 | Head | — | Denmark |
| 88 | Frank Wilcox | 57 | Head | Proprietor | Iowa |
| 89 | Della Wilcox | 52 | Wife | — | Iowa |
| 90 | Theodore Paul | 43 | Head | — | Illinois |
| 91 | Bertha Paul | 34 | Wife | — | Iowa |
| 92 | Maurice Paul | 7 | Son | — | Iowa |
| 93 | Verna Paul | 5 | Daughter | — | Iowa |
| 94 | Mildred Paul | 3 | Daughter | — | Iowa |
| 95 | Donald Paul | 1 | Son | — | Iowa |
| 96 | Nathan Enlow | 60 | Head | Marshal | Maryland |
| 97 | Lillian Enlow | 54 | Wife | — | West Virginia |
| 98 | Grace Enlow | 32 | Daughter | Principal | Iowa |
| 99 | Lillian Enlow | 16 | Daughter | — | Iowa |
| 100 | Leroy D Money | 38 | Head | Manager | Iowa |
Pedigree Summary
Earl + 5 siblings
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 1920 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)