HC
Helen Campbell — 1930 US Census Record
Model Tree available1930 United States Federal Census · Whatcom, Washington
Our Model Tree links this Helen Campbell across the 1910, 1920 and 1930 US Censuses in Whatcom, Washington (XGBoost, ~Confirmed), with identified parents Thomas & Thomas — first a daughter (b.~1908), then head of a 5-person household.
Age 22
b. ~1908
Female
Daughter
Born: Washington
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Whatcom, Washington |
| Surname | Campbell |
| Given Name | Helen M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Denmark |
| Additional Details | |
| Occupation | Teacher |
| Industry | Public School |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
| Occupation | Teacher |
| Township / Ward | Ferndale Township Pt Of |
| Est. Birth Year | ~1908 |
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 1930 census.
| Name | Relation to head | Relative to Helen | Age | Birth yr |
|---|---|---|---|---|
| Helen Campbell | Daughter | — | 22 | ~1908 |
| Mary Campbell | Daughter | — | 19 | ~1911 |
| Thomas Campbell | Head | — | 56 | ~1874 |
| Charles Campbell | Son | — | 15 | ~1915 |
| Carrie Campbell | Spouse | — | 54 | ~1876 |
Census Appearances
1910
Whatcom, Washington
Daughter, age 2
Whatcom, Washington · implied b. ~1908 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Den Danish |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1920
Whatcom, Washington
Daughter, age 12
Whatcom, Washington · implied b. ~1908 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | Helen |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Denmark |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Danish |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1930
Whatcom, Washington
Daughter, age 22
Whatcom, Washington · implied b. ~1908 — 5 household members
| Surname | Campbell |
| Given Name | Helen M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Denmark |
| Occupation | Teacher |
| Industry | Public School |
| Class of Worker | W |
| Can Read/Write | 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 Helen Campbell across 3 US Census years (1910, 1920 and 1930) in Whatcom, Washington, using XGBoost record linkage. Identified parents: father Thomas Campbell (~0.92 confidence) and father Thomas Campbell (~0.92 confidence) and father J Campbell (~0.92 confidence) and mother Caroline Campbell (~0.92 confidence) and mother Carrie Campbell (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Thomas Campbell
b. ~1874
Source father
● Household
· direct · ~0.92
Father
Thomas Campbell
b. ~1874
Source father
● Household
· direct · ~0.92
Father
J Campbell
b. ~1875
Source father
● Household
· direct · ~0.92
Mother
Caroline Campbell
b. ~1876
Source mother
● Household
· direct · ~0.92
Mother
Carrie Campbell
b. ~1877
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Helen Campbell
Daughter · 1930 · age 22 · b. ~1908 · Washington
★ You are viewing this record
Sibling
Charles Campbell
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Campbell
Sibling · 1930 · age 19
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
1930 US Federal Census — Whatcom, Washington
Open full size
1930 US Federal Census — Whatcom, Washington
Page Contents
50 people indexed on this census page (ia:1930:15thcensus2522unit:0603)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Orren C. Barnard | 63 | Head | Farmer | Pennsylvania |
| 52 | Maggie Barnard | 62 | Wife | — | Pennsylvania |
| 53 | Philip B. Gillespie | 17 | Boarder | — | Washington |
| 54 | Hugh | 19 | Boarder | Laborer | Washington |
| 55 | Charles A. Pederson | 42 | Head | Farmer | Minnesota |
| 56 | Ruth R. Pederson | 37 | Wife | — | Wisconsin |
| 57 | Earl A. Pederson | 12 | Son | — | Washington |
| 58 | Doris A. Pederson | 2 | Daughter | — | Washington |
| 59 | Noah M. Davenport | 49 | Head | Farmer | Virginia |
| 60 | Della L. Davenport | 52 | Wife | — | Iowa |
| 61 | Virginia L. Davenport | 15 | Daughter | — | Washington |
| 62 | Bellye L. Floyd | 45 | Sister in law | — | West Virginia |
| 63 | Blanche E. Belcher | 45 | Sister in law | — | Washington |
| 64 | Jesse Stafford | 21 | Boarder | Teacher | Washington |
| 65 | John C. Davenport | 34 | Head | Truck Driver | Virginia |
| 66 | Naomi Davenport | 37 | Wife | — | Virginia |
| 67 | Edwin Davenport | 8 | Son | — | Washington |
| 68 | Emma Frost | 52 | Aunt | — | Virginia |
| 69 | Albert Mugard | 52 | Head | Farmer | Norway |
| 70 | Anna Mugard | 50 | Wife | — | Norway |
| 71 | Alvin B. Mugard | 25 | Son | Truck Driver | Washington |
| 72 | Bernice Mugard | 15 | Daughter | — | Washington |
| 73 | Lewis M. Mugard | 13 | Son | — | Washington |
| 74 | George H. Moon | 60 | Head | Contractor | Canada English |
| 75 | Mary A. Moon | 54 | Wife | — | Germany |
| 76 | John G. Owens | 23 | Servant | Laborer | Colorado |
| 77 | Noah C. Davenport | 75 | Head | Farmer | Virginia |
| 78 | Ida F. Davenport | 72 | Wife | — | Virginia |
| 79 | Henry F. Davenport | 37 | Son | Laborer | Virginia |
| 80 | William Hoxworth | 31 | Head | Substation Operator | Washington |
| 81 | Angelia Hoxworth | 26 | Wife | — | California |
| 82 | Thomas H. Campbell | 56 | Head | Farmer | Iowa |
| 83 | Carrie F. Campbell | 54 | Wife | — | Denmark |
| 84 | Helen M. Campbell THIS PERSON | 22 | Daughter | Teacher | Washington |
| 85 | Mary K. Campbell | 19 | Daughter | Stenographer | Washington |
| 86 | Charles T. Campbell | 15 | Son | — | Washington |
| 87 | Palma C. Knight | 62 | Head | Janitor | Indiana |
| 88 | Dora J. Knight | 59 | Wife | — | New York |
| 89 | Max E. Knight | 24 | Son | Meat Cutter | Washington |
| 90 | David N. Lusk | 63 | Head | Farmer | Canada English |
| 91 | Ragle Harrison | 59 | Head | Farmer | Norway |
| 92 | Nels Harrison | 23 | Son | Laborer | Norway |
| 93 | Ralph H. Harrison | 21 | Son | Longshoreman | Norway |
| 94 | Lewis Harrison | 19 | Son | Laborer | Washington |
| 95 | Jessie S. Harrison | 17 | Daughter | — | Washington |
| 96 | Ruth Harrison | 14 | Daughter | — | Washington |
| 97 | John Hansen | 47 | Head | Piler | Norway |
| 98 | Sophia Hansen | 45 | Wife | — | Norway |
| 99 | Nels Hansen | 21 | Son | Laborer | Norway |
| 100 | Sigurd Hansen | 16 | Son | — | Norway |
Pedigree Summary
Helen + 2 siblings
Gen 1 · 5 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)