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Andrew Johnson — 1920 US Census Record
Model Tree available1920 United States Federal Census · Mahaska, Iowa
Our Model Tree links this Andrew Johnson across the 1900, 1910 and 1920 US Censuses in Mahaska, Iowa (XGBoost, ~Confirmed), with identified parents Albert & Albert — first a son (b.~1899), then head of a 7-person household.
Age 21
b. ~1899
Male
Son
Born: Iowa
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Mahaska, Iowa |
| Surname | Johnson |
| Given Name | Andrew |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Additional Details | |
| Occupation | Farm Laborer |
| Industry | Hired Farm |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Farm Laborer |
| Township / Ward | West Des Moines Township |
| Est. Birth Year | ~1899 |
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.
7 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Andrew | Age | Birth yr |
|---|---|---|---|---|
| Albert Johnson | Head | — | 53 | ~1867 |
| Gerhard Johnson | Son | — | 27 | ~1893 |
| Andrew Johnson | Son | — | 21 | ~1899 |
| Leonard Johnson | Son | — | 14 | ~1906 |
| Wilard Johnson | Son | — | 4 | ~1916 |
| Carl Johnson | Son | — | 18 | ~1902 |
| Manda Johnson | Spouse | — | 52 | ~1868 |
Census Appearances
1900
Mahaska, Iowa
Son, age 2
Mahaska, Iowa · implied b. ~1898 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Andrew E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Iowa |
| Birth Month | Aug |
| Birth Year | 1898 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1910
Mahaska, Iowa
Son, age 11
Mahaska, Iowa · implied b. ~1899 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Andrew |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1920
Mahaska, Iowa
Son, age 21
Mahaska, Iowa · implied b. ~1899 — 7 household members
| Surname | Johnson |
| Given Name | Andrew |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Farm Laborer |
| Industry | Hired Farm |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| 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 Andrew Johnson across 3 US Census years (1900, 1910 and 1920) in Mahaska, Iowa, using XGBoost record linkage. Identified parents: father Albert Johnson (~0.92 confidence) and father Albert Johnson (~0.92 confidence) and father Albert Johnson (~0.92 confidence) and mother Manda Johnson (~0.92 confidence) and mother Amanda Johnson (~0.92 confidence) and mother Amanda Johnson (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Albert Johnson
b. ~1867
Source father
● Household
· direct · ~0.92
Father
Albert Johnson
b. ~1867
Source father
● Household
· direct · ~0.92
Father
Albert Johnson
b. ~1867
Source father
● Household
· direct · ~0.92
Mother
Manda Johnson
b. ~1868
Source mother
● Household
· direct · ~0.92
Mother
Amanda Johnson
b. ~1873
Source mother
● Household
· direct · ~0.92
Mother
Amanda Johnson
b. ~1868
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Andrew Johnson
Son · 1920 · age 21 · b. ~1899 · Iowa
★ You are viewing this record
Sibling
Leonard Johnson
Sibling · 1920 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gerhard Johnson
Sibling · 1920 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Wilard Johnson
Sibling · 1920 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Carl Johnson
Sibling · 1920 · age 18
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 — Mahaska, Iowa
Open full size
1920 US Federal Census — Mahaska, Iowa
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu501unit:0527)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Frank S Conley | 68 | Head | Farmer | Iowa |
| 2 | Catherine Conley | 65 | Wife | — | Ohio |
| 3 | Christina Conley | 32 | Daughter | — | Iowa |
| 4 | Ace White | 36 | Head | Farmer | Iowa |
| 5 | Maggie White | 30 | Wife | — | Iowa |
| 6 | Margaret White | 11 | Daughter | — | Iowa |
| 7 | Robert White | 9 | Son | — | Iowa |
| 8 | Howard White | 3 | Son | — | Iowa |
| 9 | Ben White | 13 | Brother | Farm Laborer | Iowa |
| 10 | James Bruffert | 57 | Head | Farm Laborer | Iowa |
| 11 | Mary Bruffert | 50 | Wife | — | Indiana |
| 12 | Emmet J Stay | 41 | Head | Engine Foreman | Wisconsin |
| 13 | Minnie E Stay | 37 | Wife | — | Iowa |
| 14 | John M Stay | 16 | Son | Section Laborer | Iowa |
| 15 | Thelma E Stay | 15 | Daughter | — | Iowa |
| 16 | Harold A Stay | 11 | Son | — | Iowa |
| 17 | Clara A Stay | 8 | Daughter | — | Iowa |
| 18 | Emmet J Stay | 6 | Son | — | Iowa |
| 19 | Ruby J Stay | 5 | Daughter | — | Iowa |
| 20 | James S Stay | 4 | Son | — | Iowa |
| 21 | Kenneth J Stay | 1 | Son | — | Iowa |
| 22 | Jas Lennox | 37 | Head | Farmer | Italy |
| 23 | Catherine Lennox | 27 | Wife | — | Italy |
| 24 | Emma Lennox | 9 | Daughter | — | Italy |
| 25 | Antonia Lennox | 3 | Daughter | — | Iowa |
| 26 | Albert Johnson | 53 | Head | Farmer | Sweden |
| 27 | Manda Johnson | 52 | Wife | — | Sweden |
| 28 | Gerhard Johnson | 27 | Son | Farm Laborer | Iowa |
| 29 | Andrew Johnson THIS PERSON | 21 | Son | Farm Laborer | Iowa |
| 30 | Carl Johnson | 18 | Son | Farm Laborer | Iowa |
| 31 | Leonard Johnson | 14 | Son | — | Iowa |
| 32 | Wilard Johnson | 4 | Son | — | Iowa |
| 33 | John Raenburger | 70 | Head | — | Ohio |
| 34 | Catherine Raenburger | 73 | Wife | — | Indiana |
| 35 | Fred Hiltabrand | 42 | Head | Farmer | Iowa |
| 36 | Elizabeth Hiltabrand | 44 | Wife | — | Ohio |
| 37 | Geneva G Hiltabrand | 10 | Daughter | — | Iowa |
| 38 | Oscar E Nevins | 43 | Head | Farmer | Iowa |
| 39 | Sadie Nevins | 36 | Wife | — | Virginia |
| 40 | Olive M Nevins | 16 | Daughter | — | Iowa |
| 41 | Etheal B Nevins | 14 | Daughter | — | Iowa |
| 42 | Harold S Nevins | 10 | Son | — | Iowa |
| 43 | Herbert C Nevins | 7 | Son | — | Iowa |
| 44 | Mildred G Nevins | 4 | Daughter | — | Iowa |
| 45 | Helen Nevins | 2 | Daughter | — | Iowa |
| 46 | William P Smith | 62 | Head | Farmer | Indiana |
| 47 | Mary A Smith | 57 | Wife | — | Kentucky |
| 48 | Milo W Smith | 19 | Son | Farmer | Iowa |
| 49 | Rebecca Littlejohn | 75 | Mother-in-law | — | Maryland |
| 50 | William O Berris | 34 | Head | Farmer | United States |
Pedigree Summary
Andrew + 4 siblings
Gen 1 · 6 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)