JH
James Harmon — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Island, Washington
Our Model Tree links this James Harmon across the 1910 and 1920 US Censuses in Island, Washington (XGBoost, ~Confirmed) — first a son (b.~1906), then head of a 7-person household.
Age 14
b. ~1906
Male
Son
Born: Washington
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Island, Washington |
| Surname | Harmon |
| Given Name | James W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | West Virginia |
| Mother's Birthplace | Missouri |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
| Township / Ward | Langley Precinct |
| Est. Birth Year | ~1906 |
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 James | Age | Birth yr |
|---|---|---|---|---|
| William Harmon | Head | — | 49 | ~1871 |
| Avis Harmon | Son | — | 16 | ~1904 |
| Nancy Harmon | Spouse | — | 50 | ~1870 |
| James Harmon | Son | — | 14 | ~1906 |
| Mary Harmon | Daughter | — | 15 | ~1905 |
| May Harmon | Daughter | — | 8 | ~1912 |
| Sibyl Harmon | Daughter | — | 7 | ~1913 |
Census Appearances
1910
Island, Washington
Son, age 4
Island, Washington · implied b. ~1906 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harmon |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | West Virginia |
| Mother's Birthplace | Minnesota |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1920
Island, Washington
Son, age 14
Island, Washington · implied b. ~1906 — 7 household members
| Surname | Harmon |
| Given Name | James W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | West Virginia |
| Mother's Birthplace | Missouri |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| 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 James Harmon across 2 US Census years (1910 and 1920) in Island, Washington, using XGBoost record linkage.
Show:
This person
Anchor record
James Harmon
Son · 1920 · age 14 · b. ~1906 · Washington
★ You are viewing this record
Sibling
Mary Harmon
Sibling · 1920 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
May Harmon
Sibling · 1920 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Avis Harmon
Sibling · 1920 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Sibyl Harmon
Sibling · 1920 · age 7
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 — Island, Washington
Open full size
1920 US Federal Census — Island, Washington
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu1923unit:1103)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Otto H. Thrall | 59 | Head | Steward | Wisconsin |
| 52 | Nellie A. Thrall | 44 | Wife | — | Wisconsin |
| 53 | William H. Teeple | 54 | Head | Woodsman | Canada |
| 54 | Jessie F. Teeple | 46 | Wife | — | Connecticut |
| 55 | Ralph S. Teeple | 19 | Son | Timber Worker | Washington |
| 56 | William H. Teeple | 15 | Son | Woodsman | Washington |
| 57 | Samuel B. Teeple | 12 | Son | — | Washington |
| 58 | John A. Teeple | 10 | Son | — | Washington |
| 59 | George H. Dahms | 41 | Head | Poultryman | New York |
| 60 | Christine A. Dahms | 37 | Wife | — | Indiana |
| 61 | Walter G. Dahms | 6 | Son | — | Washington |
| 62 | Mary M. Dahms | 2 | Daughter | — | Washington |
| 63 | Frank C. Ackerman | 38 | Head | Yard Man | Illinois |
| 64 | August Ratzloff | 57 | Head | General Farmer | West Prussia |
| 65 | Amelia A. Ratzloff | 39 | Wife | — | West Prussia |
| 66 | Carl A. Ratzloff | 13 | Son | — | Washington |
| 67 | Katie Ratzloff | 11 | Daughter | — | Washington |
| 68 | Elizabeth Ratzloff | 9 | Daughter | — | Washington |
| 69 | John Camenisch | 51 | Head | Laborer | Switzerland |
| 70 | Carl J. Carlson | 31 | Head | Laborer | Sweden |
| 71 | Henry Akins | 50 | Head | Laborer | Rheinish Prussia |
| 72 | Joseph Fink | 51 | Head | Laborer | Rheinish Prussia |
| 73 | John Jacobson | 74 | Head | Watchman | Sweden |
| 74 | W. W. Macdonald | 65 | Head | Carpenter | Scotland |
| 75 | Mary S. Macdonald | 51 | Wife | — | Scotland |
| 76 | Robert W. Macdonald | 41 | Son | Laborer | Scotland |
| 77 | Alexander W. Macdonald | 30 | Son | Teamster | Washington |
| 78 | William S. Macdonald | 27 | Son | Truck Driver | Washington |
| 79 | Flora J. Macdonald | 25 | Daughter | — | Washington |
| 80 | Jessie S. Prier | 34 | Head | Laborer | Kansas |
| 81 | Elizabeth H. Prier | 43 | Wife | — | Washington |
| 82 | James E. Prier | 29 | Brother | Laborer | Kansas |
| 83 | Florence L. Prier | 10 | Daughter | — | Washington |
| 84 | Helen G. Prier | 9 | Daughter | — | Washington |
| 85 | James E. Prier | 3 | Son | — | Washington |
| 86 | Eugene Sestrais | 53 | Head | Laborer | Belgium |
| 87 | Mary L. Sestrais | 55 | Wife | — | New York |
| 88 | William T. Harmon | 49 | Head | Farmer | West Virginia |
| 89 | Nancy M. Harmon | 50 | Wife | — | Missouri |
| 90 | Avis S. Harmon | 16 | Son | Laborer | Washington |
| 91 | Mary E. Harmon | 15 | Daughter | — | Washington |
| 92 | James W. Harmon THIS PERSON | 14 | Son | — | Washington |
| 93 | May Harmon | 8 | Daughter | — | Washington |
| 94 | Sibyl D. Harmon | 7 | Daughter | — | Washington |
| 95 | Ernest H. Ridgeway | 44 | Head | Carpenter | Minnesota |
| 96 | Mary Ridgeway | 41 | Wife | — | Washington |
| 97 | Isabella Ridgeway | 8 | Daughter | — | Washington |
| 98 | Joseph F. Brown | 88 | Head | Land Owner | Portugal |
| 99 | Mary Brown | 65 | Wife | — | Washington |
| 100 | Arthur J. Brown | 23 | Son | Laborer | Washington |
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)