HJ
Hilda Johnson — 1920 US Census Record
Model Tree available1920 United States Federal Census · Mendocino, California
Our Model Tree links this Hilda Johnson across the 1900, 1910 and 1920 US Censuses in Mendocino, California (XGBoost, ~Confirmed), with identified parents Isaac & Hans — first a daughter (b.~1901), then head of a 6-person household.
Age 19
b. ~1901
Female
Daughter
Born: California
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Mendocino, California |
| Surname | Johnson |
| Given Name | Hilda |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Norway |
| Mother's Birthplace | Finland |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Finnish |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Township / Ward | Comptche Precinct |
| Est. Birth Year | ~1901 |
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.
6 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Hilda | Age | Birth yr |
|---|---|---|---|---|
| Helen Johnson | Daughter | — | 21 | ~1899 |
| Hilda Johnson | Daughter | — | 19 | ~1901 |
| Isaac Johnson | Head | — | 63 | ~1857 |
| Isaac Johnson | Son | — | 16 | ~1904 |
| Oscar Johnson | Son | — | 17 | ~1903 |
| Maria Johnson | Spouse | — | 59 | ~1861 |
Census Appearances
Daughter, age
Mendocino, California · implied b. ~1900 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Hulda A. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | California |
| Birth Month | Feb |
| Birth Year | 1900 |
| Father's Birthplace | Finland |
| Mother's Birthplace | Finland |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1910
Mendocino, California
Daughter, age 9
Mendocino, California · implied b. ~1901 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Helda |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Finland |
| Mother's Birthplace | Finland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1920
Mendocino, California
Daughter, age 19
Mendocino, California · implied b. ~1901 — 6 household members
| Surname | Johnson |
| Given Name | Hilda |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Norway |
| Mother's Birthplace | Finland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Finnish |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
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 Hilda Johnson across 3 US Census years (1900, 1910 and 1920) in Mendocino, California, using XGBoost record linkage. Identified parents: father Isaac Johnson (~0.92 confidence) and father Hans Johnson (~0.92 confidence) and father John Johnson (~0.92 confidence) and mother Maria Johnson (~0.92 confidence) and mother Beata Johnson (~0.92 confidence) and mother Annie Johnson (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Isaac Johnson
b. ~1857
Source father
● Household
· direct · ~0.92
Father
Hans Johnson
b. ~1858
Source father
● Household
· direct · ~0.92
Father
John Johnson
b. ~1858
Source father
● Household
· direct · ~0.92
Mother
Maria Johnson
b. ~1861
Source mother
● Household
· direct · ~0.92
Mother
Beata Johnson
b. ~1862
Source mother
● Household
· direct · ~0.92
Mother
Annie Johnson
b. ~1867
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Hilda Johnson
Daughter · 1920 · age 19 · b. ~1901 · California
★ You are viewing this record
Sibling
Isaac Johnson
Sibling · 1920 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Oscar Johnson
Sibling · 1920 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Johnson
Sibling · 1920 · age 21
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 — Mendocino, California
Open full size
1920 US Federal Census — Mendocino, California
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu121unit:0119)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Gustave Nocentelli | 60 | Head | Farmer | Italy |
| 52 | Amalia A. Nocentelli | 59 | Wife | — | Italy |
| 53 | Leo Nocentelli | 33 | Son | Laborer | Louisiana |
| 54 | Angeline Nocentelli | 31 | Daughter-in-law | — | Illinois |
| 55 | Leo G. Nocentelli | 9 | Grandson | — | California |
| 56 | Arthur Nocentelli | 7 | Grandson | — | California |
| 57 | Gustave M. Nocentelli | 5 | Grandson | — | California |
| 58 | Ernesto Rossi | 27 | Boarder | Laborer | Italy |
| 59 | John Pandani | 23 | Boarder | Laborer | Italy |
| 60 | Joseph Liggi | 32 | Boarder | Laborer | America |
| 61 | Carlo Simpichio | 24 | Boarder | Laborer | Italy |
| 62 | John W. Gustavson | 31 | Head | Tie Maker | Finland |
| 63 | Arne Kemppainen | 25 | Friend | Tie Maker | Finland |
| 64 | Alice S. Allen | 65 | Head | Operator | California |
| 65 | Marion E. Allen | 31 | Daughter | — | Washington |
| 66 | Henry G. Allen | 22 | Son | Manager | California |
| 67 | Oscar N. Johnson | 35 | Head | Farm Hand | California |
| 68 | Hazel P. Johnson | 22 | Wife | — | California |
| 69 | Keith W. Johnson | 4 | Son | — | California |
| 70 | Clifton C. Johnson | 3 | Son | — | California |
| 71 | Verna L. Johnson | 2 | Daughter | — | California |
| 72 | George W. Hallman | 25 | Boarder | — | California |
| 73 | Frederick D. Russell | 42 | Head | Farmer | California |
| 74 | Elizabeth M. Russell | 37 | Wife | — | California |
| 75 | Archie D. Russell | 10 | Son | — | California |
| 76 | Ruth Anne Russell | 8 | Daughter | — | California |
| 77 | Angus W. Russell | 4 | Son | — | California |
| 78 | John P. Strauss | 42 | Head | Farmer | California |
| 79 | Jessie Strauss | 42 | Wife | — | California |
| 80 | Elmer Strauss | 14 | Son | — | California |
| 81 | John Yrjölä | 64 | Head | Crosscutter | Finland |
| 82 | Jesse L. O'Nason | 58 | Head | Farmer | Denmark |
| 83 | Hannah M. O'Nason | 49 | Wife | — | California |
| 84 | Lena Munkholm | 26 | Daughter | — | California |
| 85 | Peter P. Munkholm | 33 | Son-in-law | Farmer | Minnesota |
| 86 | John O'Nason | 25 | Son | Farmer | California |
| 87 | Blanche O'Nason | 22 | Daughter | — | California |
| 88 | John W. Lyons | 52 | Head | Farmer | Canada |
| 89 | Mrs. Maria Larsen | 75 | Head | Operator | Norway |
| 90 | Charles H. Holm | 45 | Head | Farmer | Finland |
| 91 | Sophia Holm | 52 | Wife | — | Finland |
| 92 | Isaac Johnson | 63 | Head | Farmer | Norway |
| 93 | Maria E. Johnson | 59 | Wife | — | Finland |
| 94 | Helen E. Johnson | 21 | Daughter | — | California |
| 95 | Hilda Johnson THIS PERSON | 19 | Daughter | — | California |
| 96 | Oscar Jr. Johnson | 17 | Son | Farm Hand | California |
| 97 | Isaac Jr. Johnson | 16 | Son | Farm Hand | California |
| 98 | Charles Helman | 60 | Head | Tie Maker | Finland |
| 99 | Andrew O. Morgan | 40 | Head | Tie Maker | Indiana |
| 100 | Dora Morgan | 41 | Wife | — | California |
Related Census Records
Pedigree Summary
Hilda + 3 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)