RC
Ruth Campbell — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Humboldt, California
Our Model Tree links this Ruth Campbell across the 1930 and 1940 US Censuses in Humboldt, California (XGBoost, ~Confirmed) — first a daughter (b.~1922), then head of a 10-person household.
Age 8
b. ~1922
Female
Daughter
Born: California
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Humboldt, California |
| Surname | Campbell |
| Given Name | Ruth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Canada English |
| Mother's Birthplace | Canada English |
| Additional Details | |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Township / Ward | Eureka City |
| Est. Birth Year | ~1922 |
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.
10 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Ruth | Age | Birth yr |
|---|---|---|---|---|
| Bernice Campbell | Daughter | — | 16 | ~1914 |
| Mary Campbell | Daughter | — | 24 | ~1906 |
| Ruth Campbell | Daughter | — | 8 | ~1922 |
| Nellie Campbell | Daughter | — | 18 | ~1912 |
| Ignatius Campbell | Head | — | 52 | ~1878 |
| Isabelle Campbell | Other | — | 45 | ~1885 |
| John Campbell | Son | — | 22 | ~1908 |
| Robert Campbell | Son | — | 13 | ~1917 |
| Joseph Campbell | Son | — | 20 | ~1910 |
| Charles Campbell | Son | — | 15 | ~1915 |
Census Appearances
1930
Humboldt, California
Daughter, age 8
Humboldt, California · implied b. ~1922 — 10 household members
| Surname | Campbell |
| Given Name | Ruth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Canada English |
| Mother's Birthplace | Canada English |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
Humboldt-County, California
Daughter, age 18
Humboldt-County, California · implied b. ~1922 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | Rita |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Eureka City |
| 1935 Residence (County) | Humboldt |
| Highest Grade | Hs 3 |
| 1935 Residence | Same place |
| 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 Ruth Campbell across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Ruth Campbell
Daughter · 1930 · age 8 · b. ~1922 · California
★ You are viewing this record
Sibling
Nellie Campbell
Sibling · 1930 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Campbell
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Campbell
Sibling · 1930 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Campbell
Sibling · 1930 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Campbell
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bernice Campbell
Sibling · 1930 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Campbell
Sibling · 1930 · age 20
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 — Humboldt, California
Open full size
1930 US Federal Census — Humboldt, California
Page Contents
50 people indexed on this census page (ia:1930:californiacensus00reel120:0374)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Rosella M. Pomroy | 73 | Wife-H | — | Oregon |
| 52 | Shepard C. Pomroy | 72 | Head | — | Maine |
| 53 | Patrick F. Luce | 51 | Head | Gardner | Norway |
| 54 | Ignatius Campbell | 52 | Head | Oiler | Canada English |
| 55 | Isabelle Campbell | 45 | Wife-H | — | Canada English |
| 56 | Mary Campbell | 24 | Daughter | Stenographer | Canada English |
| 57 | John Campbell | 22 | Son | Salesman | Canada English |
| 58 | Joseph Campbell | 20 | Son | — | California |
| 59 | Nellie Campbell | 18 | Daughter | — | California |
| 60 | Bernice Campbell | 16 | Daughter | Carrier | California |
| 61 | Charles Campbell | 15 | Son | Carrier | California |
| 62 | Robert Campbell | 13 | Son | Carrier | California |
| 63 | Ruth Campbell THIS PERSON | 8 | Daughter | — | California |
| 64 | William J. Mcmillan | 41 | Head | Collector | California |
| 65 | Hilda Mcmillan | 32 | Wife-H | — | Oregon |
| 66 | Hilda J. Mcmillan | 1 | Daughter | — | California |
| 67 | Frances Mcmillan | 80 | Head-H | — | Nova Scotia |
| 68 | Lola Vanderhoof | 39 | Daughter | Graduate Nurse | California |
| 69 | William Vanderhoof | 38 | Son-in-law | Auto Mechanic | Ohio |
| 70 | Peter Mcpherson | 54 | Head | — | Canada English |
| 71 | Margaret Mcpherson | 53 | Wife-H | — | Scotland |
| 72 | Peter Mcpherson | 27 | Son | Tallyman | California |
| 73 | Mary Mcpherson | 22 | Daughter | Teacher | California |
| 74 | John O'Neill | 77 | Head | — | Northern Ireland |
| 75 | Catherine O'Neill | 80 | Sister | — | Northern Ireland |
| 76 | Harry L. Clark | 47 | Head | Farmer | Massachusetts |
| 77 | Sewell J. Merrill | 74 | Head | — | New Hampshire |
| 78 | Nancy J. Merrill | 72 | Wife-H | — | California |
| 79 | Jerry L. Matthews | 52 | Head | Laborer | Missouri |
| 80 | Ruth Matthews | 40 | Wife-H | Teacher | California |
| 81 | Ruth E. Matthews | 12 | Daughter | — | California |
| 82 | Lois Matthews | 6 | Daughter | — | California |
| 83 | Walter B. Reed | 49 | Head | Engineer | New York |
| 84 | Lizzie Emma Reed | 31 | Wife-H | Clerk | Michigan |
| 85 | Robert Lawton | 53 | Head | — | California |
| 86 | J. Willis Luce | 57 | Head | Laborer | Finland |
| 87 | Ida J. Luce | 51 | Wife-H | — | Finland |
| 88 | Edith V. Luce | 20 | Daughter | — | California |
| 89 | Isaac Erickson | 42 | Head | Laborer | Finland |
| 90 | Mary Erickson | 42 | Wife-H | — | California |
| 91 | Robert Lawter | 60 | Head | Laborer | Illinois |
| 92 | Alice Lawter | 43 | Wife-H | — | Illinois |
| 93 | Gene Lawter | 20 | Son | Grader | California |
| 94 | Earl Lawter | 17 | Son | Trimmer | California |
| 95 | Clifford Lawter | 14 | Son | — | California |
| 96 | George Lawter | 13 | Son | — | Illinois |
| 97 | Alice Lawter | 10 | Daughter | — | Idaho |
| 98 | Don Lawter | 7 | Son | — | Oregon |
| 99 | Alfred Mcnulty | 22 | Lodger | Weaver | North Dakota |
| 100 | Niklos Williams | 50 | Head | Laborer | Finland |
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)