FA
Fred Adams — 1940 US Census Record
Model Tree available1940 United States Federal Census · Boone-County, Iowa
Our Model Tree links this Fred Adams across the 1920, 1930 and 1940 US Censuses in Boone-County, Iowa (XGBoost, ~Confirmed), with identified parents Nick & Otto — first a son (b.~1913), then head of a 4-person household.
Age 27
b. ~1913
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Boone-County, Iowa |
| Surname | Adams |
| Given Name | Fred |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Marcy Twp |
| 1935 Residence (County) | Boone |
| Additional Details | |
| Occupation | laborer |
| Industry | farm |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 524 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Laborer |
| Township / Ward | Marcy Twp |
| 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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Fred | Age | Birth yr |
|---|---|---|---|---|
| Fred Adams | Son | — | 27 | ~1913 |
| Carl Adams | Son | — | 38 | ~1902 |
| Otto Adams | Head | — | 67 | ~1873 |
| Emma Adams | Daughter | — | 22 | ~1918 |
Census Appearances
1920
Boone, Iowa
Son, age 8
Boone, Iowa · implied b. ~1912 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Adam |
| Given Name | Freda |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Occupation | none |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Boone, Iowa
Son, age 18
Boone, Iowa · implied b. ~1912 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Adams |
| Given Name | Fred J |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Occupation | Farm labor |
| Industry | Home farm |
| Class of Worker | VVVV W |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Boone-County, Iowa
Son, age 27
Boone-County, Iowa · implied b. ~1913 — 4 household members
| Surname | Adams |
| Given Name | Fred |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Marcy Twp |
| 1935 Residence (County) | Boone |
| Occupation | laborer |
| Industry | farm |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 524 |
| Highest Grade | 8 |
| 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 Fred Adams across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Nick Adams (~0.92 confidence) and father Otto Adams (~0.92 confidence) and mother Rebeka Adam (~0.92 confidence) and mother Miesche Adams (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Nick Adams
b. ~1873
Source father
● Household
· direct · ~0.92
Father
Otto Adams
b. ~1873
Source father
● Household
· direct · ~0.92
Mother
Rebeka Adam
b. ~1873
Source mother
● Household
· direct · ~0.92
Mother
Miesche Adams
b. ~1876
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Fred Adams
Son · 1940 · age 27 · b. ~1913 · Iowa
★ You are viewing this record
Sibling
Emma Adams
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Carl Adams
Sibling · 1940 · age 38
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 — Boone-County, Iowa
Open full size
1940 US Federal Census — Boone-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01141-00747)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ida Bork | 63 | Wife | — | Iowa |
| 2 | Mabel Bork | 39 | Daughter | — | Iowa |
| 3 | Raymond Bork | 27 | Son | Farm Laborer | Iowa |
| 4 | Joseph D. Saunders | 45 | Head | Farmer | Iowa |
| 5 | Florence Saunders | 41 | Wife | — | Iowa |
| 6 | Kathryn Saunders | 17 | Daughter | Maid | Iowa |
| 7 | Marjorie Saunders | 14 | Daughter | — | Iowa |
| 8 | Nila Saunders | 11 | Daughter | — | Iowa |
| 9 | Harley Saunders | 6 | Son | — | Iowa |
| 10 | Royals R. Gunkel | 32 | Head | Farmer | Iowa |
| 11 | Lois Gunkel | 26 | Wife | — | Iowa |
| 12 | Otto Adams | 67 | Head | Farmer | Germany |
| 13 | Carl Adams | 38 | Son | Laborer | Iowa |
| 14 | Fred Adams THIS PERSON | 27 | Son | Laborer | Iowa |
| 15 | Emma Adams | 22 | Daughter | — | Iowa |
| 16 | Clarence Cadman | 49 | Head | Farmer | Missouri |
| 17 | Pearl Cadman | 47 | Wife | — | Iowa |
| 18 | Kenneth Cadman | 17 | Son | — | Iowa |
| 19 | Robert Cadman | 16 | Son | — | Iowa |
| 20 | Ronald Cadman | 5 | Son | — | Iowa |
| 21 | Fred W. Charlet | 57 | Head | Farmer | Illinois |
| 22 | Gertrude Charlet | 52 | Wife | — | Ohio |
| 23 | Rosalyn Charlet | 18 | Daughter | — | Iowa |
| 24 | Andrew Blakley | 40 | Head | Farmer | Iowa |
| 25 | Ruby Blakley | 34 | Wife | — | Iowa |
| 26 | Donald Blakley | 13 | Son | — | Iowa |
| 27 | Edward Blakley | 11 | Son | — | Iowa |
| 28 | Harold Blakley | 4 | Son | — | Iowa |
| 29 | Charles Clausen | 43 | Head | Farmer | Iowa |
| 30 | Margaret Clausen | 39 | Wife | — | Iowa |
| 31 | Doris Clausen | 17 | Daughter | — | Iowa |
| 32 | Paul Clausen | 15 | Son | — | Iowa |
| 33 | Roland R. Gunkel | 39 | Head | Farmer | Iowa |
| 34 | Beulah Gunkel | 28 | Wife | — | Iowa |
| 35 | Kathryn Gunkel | 11 | Daughter | — | Iowa |
| 36 | Virgil Lee Gunkel | 8 | Son | — | Iowa |
| 37 | Earl Kuhnke | 21 | Hired man | Laborer | Nebraska |
| 38 | Charles E. Martin | 39 | Head | Farmer | Iowa |
| 39 | Nellie E. Martin | 37 | Wife | — | Iowa |
| 40 | Walter F. Hubby | 55 | Head | Farmer | Iowa |
Pedigree Summary
Fred + 2 siblings
Gen 1 · 4 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)