GC
Grace Campbell — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Lake, California
Our Model Tree links this Grace Campbell across the 1930 and 1940 US Censuses in Lake, California (XGBoost, ~Confirmed) — first a daughter (b.~1922), then head of a 9-person household.
Age 8
b. ~1922
Female
Daughter
Born: California
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Lake, California |
| Surname | Campbell |
| Given Name | Grace M |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Colorado |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Township / Ward | Township 5 |
| 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.
9 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Grace | Age | Birth yr |
|---|---|---|---|---|
| Grace Campbell | Daughter | — | 8 | ~1922 |
| Geraldine Campbell | Daughter | — | 12 | ~1918 |
| William Campbell | Son | — | 6 | ~1924 |
| Mary Campbell | Daughter | — | 9 | ~1921 |
| Mary Campbell | Other | — | 42 | ~1888 |
| Margaret Campbell | Daughter | — | 14 | ~1916 |
| John Campbell | Son | — | 1 | ~1929 |
| Chester Campbell | Head | — | 46 | ~1884 |
| Thomas Campbell | Son | — | 17 | ~1913 |
Census Appearances
1930
Lake, California
Daughter, age 8
Lake, California · implied b. ~1922 — 9 household members
| Surname | Campbell |
| Given Name | Grace M |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Colorado |
| Mother's Birthplace | Pennsylvania |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
Lake-County, California
Daughter, age 18
Lake-County, California · implied b. ~1922 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | Gracia M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Judicial Township 4 |
| 1935 Residence (County) | Lake |
| Occupation | pear cutter |
| Industry | pear shed |
| Class of Worker | PW |
| Hours Worked | 0 |
| Income (1939) | 28 |
| Highest Grade | H 2 |
| 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 Grace Campbell across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Grace Campbell
Daughter · 1930 · age 8 · b. ~1922 · California
★ You are viewing this record
Sibling
Thomas Campbell
Sibling · 1930 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Campbell
Sibling · 1930 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Campbell
Sibling · 1930 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Geraldine Campbell
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Campbell
Sibling · 1930 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Campbell
Sibling · 1930 · age 14
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 — Lake, California
Open full size
1930 US Federal Census — Lake, California
Page Contents
50 people indexed on this census page (ia:1930:californiacensus00reel120:1126)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | William J Lamm | 36 | Head | Farmer | California |
| 2 | Sarah Lamm | 33 | Wife-H | — | Northern Ireland |
| 3 | Jack R Lamm | 4 | Son | — | California |
| 4 | Roy T Lamm | 3 | Son | — | California |
| 5 | William H Gallagher | 15 | Stepson | — | California |
| 6 | Alfred G Smith | 49 | Head | Farmer | England |
| 7 | Martha J Smith | 37 | Wife-H | — | Germany-Kiel |
| 8 | Richard A Wagner | 15 | Stepson | — | California |
| 9 | Chester W Campbell | 46 | Head | Truck Driver | Colorado |
| 10 | Mary C Campbell | 42 | Wife-H | — | Pennsylvania |
| 11 | Thomas E Campbell | 17 | Son | Laborer | Colorado |
| 12 | Margaret E Campbell | 14 | Daughter | — | Colorado |
| 13 | Geraldine A Campbell | 12 | Daughter | — | Colorado |
| 14 | Mary J Campbell | 9 | Daughter | — | Colorado |
| 15 | Grace M Campbell THIS PERSON | 8 | Daughter | — | California |
| 16 | William C Campbell | 6 | Son | — | California |
| 17 | John A Campbell | 1 | Son | — | California |
| 18 | Clyde P Stevenson | 38 | Head | Foreman | Nebraska |
| 19 | Ellen V Stevenson | 29 | Wife-H | — | Minnesota |
| 20 | Mary J Stevenson | 12 | Daughter | — | California |
| 21 | Roberta J Stevenson | 2 | Daughter | — | California |
| 22 | John Clements | 48 | Head | Laborer | Missouri |
| 23 | Sadie A Kenny | 40 | Head | — | California |
| 24 | Jackson B Flagg | 19 | Son | Painter | California |
| 25 | Donald P Flagg | 16 | Son | — | California |
| 26 | Louis G Douglas | 46 | Head | Wood Chopper | Canada-English |
| 27 | George E Wilds | 78 | Head | — | Massachusetts |
| 28 | Celestia J Wilds | 70 | Wife-H | — | Iowa |
| 29 | Clyde E Wilds | 35 | Head | Farmer | California |
| 30 | May Wilds | 23 | Wife-H | — | California |
| 31 | Junior C Wilds | 4 | Son | — | California |
| 32 | Glenn L Wilds | 2 | Son | — | California |
| 33 | Laura J Wilds | 0 | Daughter | — | California |
| 34 | Charles L Myers | 51 | Head | Wood Chopper | California |
| 35 | Victor Myers | 12 | Son | — | California |
| 36 | Pershing Myers | 10 | Son | — | California |
| 37 | William J Myers | 50 | Brother | Laborer | California |
| 38 | Francis P Hall | 52 | Head | Farmer | Oregon |
| 39 | Mabel M Hall | 32 | Wife-H | — | Missouri |
| 40 | Francis P Jr Hall | 10 | Son | — | Colorado |
| 41 | Mary Carr | 59 | Head | Farmer | Michigan |
| 42 | Bertha E Carr | 52 | Sister-H | — | Michigan |
| 43 | Oscar M Jr Downing | 19 | Head | Laborer | Washington |
| 44 | Godfrey J Hildebrand | 61 | Head | Farmer | India |
| 45 | Mabel Hildebrand | 61 | Wife-H | — | New Zealand |
| 46 | J Eric F Hildebrand | 33 | Son | Foreman | California |
| 47 | Eunice M Hildebrand | 30 | Daughter | — | California |
| 48 | H Katharine Hildebrand | 23 | Daughter | — | England |
| 49 | Dorothy B Hildebrand | 20 | Daughter | — | California |
| 50 | Murdoch Mcintire | 69 | Head | Farmer | North Carolina |
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)