MJ
Mamie Johnson — 1920 US Census Record
Model Tree available1920 United States Federal Census · Yakima, Washington
Our Model Tree links this Mamie Johnson across the 1900, 1910 and 1920 US Censuses in Yakima, Washington (XGBoost, ~Confirmed), with identified parents Grant & Josie — first a daughter (b.~1899), then head of a 4-person household.
Age 21
b. ~1899
Female
Daughter
Born: Washington
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Yakima, Washington |
| Surname | Johnson |
| Given Name | Mamie |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Washington |
| Mother's Birthplace | Denmark |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Danish |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
| Township / Ward | White Swan Post Office Fort Simcoe Pet |
| 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.
4 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Mamie | Age | Birth yr |
|---|---|---|---|---|
| Mamie Johnson | Daughter | — | 21 | ~1899 |
| Grant Johnson | Head | — | 54 | ~1866 |
| Armand Grinpen | Other | — | 24 | ~1896 |
| Josie Johnson | Spouse | — | 49 | ~1871 |
Census Appearances
1900
Yakima, Washington
Other, age 2
Yakima, Washington · implied b. ~1898 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Mamie |
| Relationship to Head | Niece |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Washington |
| Birth Month | June |
| Birth Year | 1898 |
| Father's Birthplace | Unknown |
| Mother's Birthplace | Denmark |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1910
Yakima, Washington
Daughter, age 11
Yakima, Washington · implied b. ~1899 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Mamie |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Washington |
| Mother's Birthplace | Denmark |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1920
Yakima, Washington
Daughter, age 21
Yakima, Washington · implied b. ~1899 — 4 household members
| Surname | Johnson |
| Given Name | Mamie |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Washington |
| Mother's Birthplace | Denmark |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Danish |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
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 Mamie Johnson across 3 US Census years (1900, 1910 and 1920) in Yakima, Washington, using XGBoost record linkage. Identified parents: father Grant Johnson (~0.92 confidence) and mother Josie Johnson (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Grant Johnson
b. ~1865
Source father
● Household
· direct · ~0.92
Mother
Josie Johnson
b. ~1871
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mamie Johnson
Daughter · 1920 · age 21 · b. ~1899 · Washington
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1920 US Federal Census — Yakima, Washington
Open full size
1920 US Federal Census — Yakima, Washington
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu1945unit:0647)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Cecil Williams | 2 | Son | — | Washington |
| 52 | Ben Edward | 40 | Boarder | Laborer | Wisconsin |
| 53 | Chris M. Johnson | 55 | Head | Carpenter | Minnesota |
| 54 | Adolph M. Schapertat | 47 | Head | Farm Laborer | Germany |
| 55 | Josie Schapertat | 51 | Wife | — | Poland |
| 56 | Stella Schapertat | 19 | Daughter | — | Illinois |
| 57 | Adolph Schapertat | 16 | Son | — | Washington |
| 58 | John D. Schapertat | 13 | Son | — | Washington |
| 59 | Alexander M. Schapertat | 8 | Son | — | Washington |
| 60 | Evelyn J. Lucas | 2 | Granddaughter | — | Washington |
| 61 | Mary Lucas | 1 | Granddaughter | — | Washington |
| 62 | Mary J. Hessle | 16 | Daughter | — | Illinois |
| 63 | George Hessle | 23 | Son-in-law | Laborer | South Dakota |
| 64 | Cecil C. Loney | 25 | Head | Cook | California |
| 65 | Carrie L. Loney | 24 | Wife | — | Massachusetts |
| 66 | John S. Espey | 51 | Head | Teacher | Iowa |
| 67 | Mary E. Espey | 49 | Wife | — | Iowa |
| 68 | Mildred Espey | 20 | Daughter | — | Iowa |
| 69 | Margaret Espey | 16 | Daughter | — | Iowa |
| 70 | Charles Chamberlain | 30 | Boarder | Laborer | Iowa |
| 71 | Viola V. Chamberlain | 21 | Boarder | — | Iowa |
| 72 | Grant Johnson | 54 | Head | Farmer | Washington |
| 73 | Josie A. Johnson | 49 | Wife | — | Denmark |
| 74 | Mamie Johnson THIS PERSON | 21 | Daughter | — | Washington |
| 75 | Armand J. Grinpen | 24 | Employee | Farm Laborer | Sweden |
| 76 | Harry H. Camp | 33 | Head | Stockman | Minnesota |
| 77 | Mabel Camp | 32 | Wife | — | Minnesota |
| 78 | Beverly Camp | 12 | Daughter | — | Washington |
| 79 | Lois Camp | 11 | Daughter | — | Washington |
| 80 | Harry Camp | 8 | Son | — | Washington |
| 81 | Eleanor Camp | 4 | Daughter | — | Washington |
| 82 | Frank Lewis | 40 | Head | Not Employed | Illinois |
| 83 | Mary Lewis | 55 | Wife | — | Illinois |
| 84 | Joseph Strangard | 29 | Head | Not Employed | Minnesota |
| 85 | Beatrice Strangard | 24 | Wife | — | Minnesota |
| 86 | Leroy Strangard | 6 | Son | — | Minnesota |
| 87 | Beverly Strangard | 4 | Son | — | Minnesota |
| 88 | Louisa Cook | 36 | Head | — | Washington |
| 89 | Benjamin Jarvis | 20 | Boarder | Electrician | Washington |
| 90 | Elias Healey | 32 | Head | Meat Butcher | Washington |
| 91 | Ella Healey | 32 | Wife | — | Washington |
| 92 | John A. Johnson | 70 | Head | — | Denmark |
| 93 | Ernest Hober | 31 | Employee | Meat Cutter | Washington |
| 94 | George H. Conklin | 40 | Head | Carpenter | Washington |
| 95 | Ada Conklin | 32 | Wife | — | England |
| 96 | Barbara Conklin | 8 | Daughter | — | Washington |
| 97 | George H. Conklin | 5 | Son | — | Washington |
| 98 | Robert Conklin | 4 | Son | — | Washington |
| 99 | Adaline Conklin | 2 | Daughter | — | Washington |
| 100 | Arthur Baker | 40 | Head | Laborer | Oregon |
Pedigree Summary
Mamie
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)