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Robert Griffith — 1920 US Census Record
Model Tree available1920 United States Federal Census · King, Washington
Our Model Tree links this Robert Griffith across the 1920, 1930 and 1940 US Censuses in King, Washington (XGBoost, ~Confirmed), with identified parents Thomas & Katherine — first a son (b.~1914), then head of a 4-person household.
Age 6
b. ~1914
Male
Son
Born: Washington
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | King, Washington |
| Surname | Griffith |
| Given Name | Robert H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Washington |
| Mother's Birthplace | Honolulu |
| Additional Details | |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
| Township / Ward | Seattle City |
| Est. Birth Year | ~1914 |
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 Robert | Age | Birth yr |
|---|---|---|---|---|
| Richard Griffith | Son | — | 3 | ~1917 |
| Katherine Griffith | Spouse | — | 36 | ~1884 |
| Thomas Griffith | Head | — | 40 | ~1880 |
| Robert Griffith | Son | — | 6 | ~1914 |
Census Appearances
1920
King, Washington
Son, age 6
King, Washington · implied b. ~1914 — 4 household members
| Surname | Griffith |
| Given Name | Robert H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Washington |
| Mother's Birthplace | Honolulu |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1930
King, Washington
Son, age 17
King, Washington · implied b. ~1913 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Griffiths |
| Given Name | Robert M. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Washington |
| Mother's Birthplace | California |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1940
King-County, Washington
Head, age 27
King-County, Washington · implied b. ~1913 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Griffiths |
| Given Name | Robt M |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Washington |
| 1935 Residence (City) | Seattle City |
| 1935 Residence (County) | King |
| Occupation | Inspector |
| Industry | Railroad |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1300 |
| Highest Grade | C 4 |
| 1935 Residence | Same place |
| 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 Robert Griffith across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Thomas Griffith (~0.92 confidence) and mother Katherine Griffith (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Thomas Griffith
b. ~1880
Source father
● Household
· direct · ~0.92
Mother
Katherine Griffith
b. ~1884
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Griffith
Son · 1920 · age 6 · b. ~1914 · Washington
★ You are viewing this record
Sibling
Richard Griffith
Sibling · 1920 · age 3
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 — King, Washington
Open full size
1920 US Federal Census — King, Washington
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu1927unit:0295)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Annie E White | 48 | Head | Bookkeeper | Iowa |
| 52 | Peter F Kiernan | 55 | Head | Druggist | Ohio |
| 53 | Frances R Kiernan | 40 | Wife | — | New York |
| 54 | Peter F Kiernan | 34 | Son | Steward | Ohio |
| 55 | George H Kiernan | 23 | Son | Checker | Washington |
| 56 | Marie Kiernan | 9 | Daughter | — | Washington |
| 57 | Albert B Ellis | 36 | Head | Machinist | Nebraska |
| 58 | Nellie M Ellis | 36 | Wife | — | Washington |
| 59 | Alice R Ellis | 13 | Daughter | — | Washington |
| 60 | Thomas Griffith | 40 | Head | Agent | Washington |
| 61 | Katherine M Griffith | 36 | Wife | — | Honolulu |
| 62 | Robert H Griffith THIS PERSON | 6 | Son | — | Washington |
| 63 | Richard H Griffith | 3 | Son | — | Washington |
| 64 | Elizabeth S Dofilis | 79 | Head | — | Scotland |
| 65 | Elizabeth Dofilis | 50 | Daughter | — | New York |
| 66 | Edward Dene | 25 | Roomer | Stenographer | West Virginia |
| 67 | Margaret Brennan | 46 | Roomer | Chief Clerk | Canada |
| 68 | Fred M Kincaid | 26 | Head | Bookkeeper | Idaho |
| 69 | Blanch D Kincaid | 22 | Wife | Minister | Washington |
| 70 | Marshall R Kincaid | 3 | Son | Operator | Washington |
| 71 | Harriett E Kincaid | 2 | Daughter | — | Washington |
| 72 | John H Means | 60 | Head | Agent | Mississippi |
| 73 | Mary M Means | 55 | Wife | — | California |
| 74 | Mary B Frank | 62 | Head | — | New York |
| 75 | Rosa Frank | 60 | Sister | — | New York |
| 76 | Rosa Frank | 34 | Niece | Stenographer | New York |
| 77 | Harry L Beck | 34 | Head | Manager | Illinois |
| 78 | Mary E Beck | 33 | Wife | — | Illinois |
| 79 | Bettie A Beck | 6 | Daughter | — | Washington |
| 80 | Edna Chafous | 39 | Sister-in-law | Bookkeeper | Illinois |
| 81 | Dean F Dudley | 17 | Nephew | — | Montana |
| 82 | Charles A Bugbee | 60 | Head | Bookkeeper | Maine |
| 83 | Mary H Bugbee | 55 | Wife | — | Rhode Island |
| 84 | Edwin C Fellows | 35 | Head | Engineer | Pennsylvania |
| 85 | Ila Fellows | 29 | Wife | — | Pennsylvania |
| 86 | John Reilly | 52 | Head | Steam Fitter | Massachusetts |
| 87 | Ila Reilly | 50 | Wife | — | Illinois |
| 88 | Margaret M Hunter | 34 | Step-daughter | Bookbinder | Colorado |
| 89 | Jessie Fairgrieve | 45 | Boarder | — | Oregon |
| 90 | Herbert S Chandler | 34 | Head | Clerk | Michigan |
| 91 | Margaret Chandler | 32 | Wife | — | North Dakota |
| 92 | Shelton S Chandler | 7 | Son | — | Washington |
| 93 | Robert H Chandler | 5 | Son | — | Washington |
| 94 | Harold R Warner | 30 | Head | Assistant Manager | Massachusetts |
| 95 | Frances Warner | 30 | Wife | — | Minnesota |
| 96 | Harold R Jr Warner | 4 | Son | — | Washington |
| 97 | Daylene Warner | 2 | Daughter | — | Washington |
| 98 | William Bonham | 35 | Boarder | Clerk | Kansas |
| 99 | Natalie A Bonham | 8 | Boarder | — | Idaho |
| 100 | John A Knots | 37 | Head | Clerk | Illinois |
Pedigree Summary
Robert + 1 sibling
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)