CJ
Clarence Johnson — 1920 US Census Record
Model Tree available1920 United States Federal Census · Marshall, Iowa
Our Model Tree links this Clarence Johnson across the 1900, 1910 and 1920 US Censuses in Marshall, Iowa (XGBoost, ~Confirmed), with identified parents Charles & Charles — first a son (b.~1900), then head of a 5-person household.
Age 20
b. ~1900
Male
Son
Born: Iowa
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Marshall, Iowa |
| Surname | Johnson |
| Given Name | Clarence |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Iowa |
| Additional Details | |
| Occupation | Laborer |
| Industry | Common |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Laborer |
| Township / Ward | Marshalltown City |
| Est. Birth Year | ~1900 |
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.
5 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Clarence | Age | Birth yr |
|---|---|---|---|---|
| Bertha Johnson | Daughter | — | 22 | ~1898 |
| Charles Johnson | Head | — | 54 | ~1866 |
| Clarence Johnson | Son | — | 20 | ~1900 |
| Mark Johnson | Son | — | 11 | ~1909 |
| Anna Johnson | Spouse | — | 45 | ~1875 |
Census Appearances
1900
Marshall, Iowa
Son, age 1
Marshall, Iowa · implied b. ~1899 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Clarence |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Marital Status | Single |
| Birthplace | Iowa |
| Birth Month | Dec |
| Birth Year | 1899 |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Iowa |
| Can Read | No |
| Can Write | No |
| Speaks English | No |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1910
Marshall, Iowa
Son, age 11
Marshall, Iowa · implied b. ~1899 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Clarence |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1920
Marshall, Iowa
Son, age 20
Marshall, Iowa · implied b. ~1900 — 5 household members
| Surname | Johnson |
| Given Name | Clarence |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Iowa |
| Occupation | Laborer |
| Industry | Common |
| 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 Clarence Johnson across 3 US Census years (1900, 1910 and 1920) in Marshall, Iowa, using XGBoost record linkage. Identified parents: father Charles Johnson (~0.92 confidence) and father Charles Johnson (~0.92 confidence) and father Charles Johnson (~0.92 confidence) and mother Anna Johnson (~0.92 confidence) and mother Anna Johnson (~0.92 confidence) and mother Ambie Johnson (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Charles Johnson
b. ~1865
Source father
● Household
· direct · ~0.92
Father
Charles Johnson
b. ~1866
Source father
● Household
· direct · ~0.92
Father
Charles Johnson
b. ~1865
Source father
● Household
· direct · ~0.92
Mother
Anna Johnson
b. ~1875
Source mother
● Household
· direct · ~0.92
Mother
Anna Johnson
b. ~1875
Source mother
● Household
· direct · ~0.92
Mother
Ambie Johnson
b. ~1875
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Clarence Johnson
Son · 1920 · age 20 · b. ~1900 · Iowa
★ You are viewing this record
Sibling
Bertha Johnson
Sibling · 1920 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mark Johnson
Sibling · 1920 · age 11
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 — Marshall, Iowa
Open full size
1920 US Federal Census — Marshall, Iowa
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu502unit:0392)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Fred M Thompson | 53 | Head | Commercial | New York |
| 2 | Margaret E Thompson | 34 | Wife | — | Missouri |
| 3 | Frances Dunn | 81 | Head | — | Pennsylvania |
| 4 | Marie Almquist | 21 | Maid | Maid | Denmark |
| 5 | Charles L Simonds | 57 | Head | — | New York |
| 6 | Lizzie Simonds | 54 | Wife | — | Pennsylvania |
| 7 | Ada J La Plant | 53 | Head | — | Iowa |
| 8 | Minnie Simonds | 59 | Sister | — | Iowa |
| 9 | Edward S Simonds | 22 | Son | — | Wisconsin |
| 10 | Charles P North | 45 | Head | Merchant | Iowa |
| 11 | Maud Lou North | 36 | Wife | — | Iowa |
| 12 | Emma Schrock | 62 | Head | — | Pennsylvania |
| 13 | Bonnie Schrock | 25 | Daughter | Teacher | Iowa |
| 14 | Charles R Pettibone | 69 | Head | Collector | Connecticut |
| 15 | Annette R Pettibone | 66 | Wife | — | New York |
| 16 | Elmer J Anderson | 35 | Roomer | — | Iowa |
| 17 | W S Ignorance | 35 | Roomer | Salesman | Iowa |
| 18 | M J Ames | 47 | Head | Proprietor | Illinois |
| 19 | Grace M Ames | 45 | Wife | — | Illinois |
| 20 | Chauncey Ames | 18 | Son | — | Iowa |
| 21 | Harry H Roberts | 45 | Roomer | — | Iowa |
| 22 | Charles B Johnson | 54 | Head | Merchant | Illinois |
| 23 | Anna Johnson | 45 | Wife | — | Iowa |
| 24 | Bertha Johnson | 22 | Daughter | Bookkeeper | Iowa |
| 25 | Clarence Johnson THIS PERSON | 20 | Son | Laborer | Iowa |
| 26 | Mark Johnson | 11 | Son | — | Iowa |
| 27 | Rush Parsons | 51 | Head | Fireman | Indiana |
| 28 | Ella Parsons | 33 | Wife | Stenographer | Iowa |
| 29 | Joe Parsons | 14 | Son | — | Iowa |
| 30 | Claude Wortham | 27 | Head | Laborer | Iowa |
| 31 | Aimee Wortham | 27 | Wife | — | Iowa |
| 32 | Emma Centenacal | 40 | Head | Dressmaker | Iowa |
| 33 | James Centenacal | 12 | Son | — | Iowa |
| 34 | George H Centenacal | 12 | Son | — | Iowa |
| 35 | Leon Allen | 20 | Roomer | Mechanic | Illinois |
| 36 | Jacob Weaver | 57 | Head | — | New York |
| 37 | Laura Weaver | 48 | Wife | — | Iowa |
| 38 | Bessie Bettis | 3 | Roomer | — | Iowa |
| 39 | William B Wyatt | 42 | Head | Janitor | New York |
| 40 | Elizabeth Wyatt | 47 | Wife | — | Ireland |
| 41 | Henry S Proff | 57 | Head | Farmer | Illinois |
| 42 | Martha Proff | 51 | Wife | — | Wisconsin |
| 43 | Marjorie Proff | 14 | Daughter | — | Iowa |
| 44 | Phyllis Proff | 11 | Daughter | — | Iowa |
| 45 | Helen Proff | 9 | Daughter | — | Iowa |
| 46 | Martha Proff | 5 | Daughter | — | Iowa |
| 47 | Danny Finkle | 60 | Head | — | Illinois |
| 48 | Della Finkle | 60 | Wife | — | Iowa |
| 49 | Emil Bowman | 38 | Head | Asst Cashier | Iowa |
| 50 | Rose Bowman | 34 | Sister | — | Iowa |
Pedigree Summary
Clarence + 2 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)