JL
John Logan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Humboldt-County, California
Our Model Tree links this John Logan across the 1930 and 1940 US Censuses in Humboldt-County, California (XGBoost, ~Confirmed) — first a son (b.~1931), then head of a 10-person household.
Age 9
b. ~1931
Male
Son
Born: California
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Humboldt-County, California |
| Surname | Logan |
| Given Name | John David |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Garberville |
| 1935 Residence (County) | Humboldt |
| Additional Details | |
| Highest Grade | No 2 |
| 1935 Residence | Same place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Township / Ward | Garberville |
| Est. Birth Year | ~1931 |
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 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Edna Logan | Daughter | — | 1 | ~1939 |
| Sona Logan | Daughter | — | 3 | ~1937 |
| Phyllis Logan | Daughter | — | 11 | ~1929 |
| Estelan Logan | Daughter | — | 12 | ~1928 |
| Wanda Logan | Daughter | — | 4 | ~1936 |
| Ruby Logan | Daughter | — | 8 | ~1932 |
| Leslie Logan | Head | — | 48 | ~1892 |
| John Logan | Son | — | 9 | ~1931 |
| Jordan Logan | Son | — | 6 | ~1934 |
| Floy Logan | Spouse | — | 34 | ~1906 |
Census Appearances
1930
Humboldt, California
Son, age 1
Humboldt, California · implied b. ~1929 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Logan |
| Given Name | John P. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Kansas |
| Mother's Birthplace | Rhode Island |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
Humboldt-County, California
Son, age 9
Humboldt-County, California · implied b. ~1931 — 10 household members
| Surname | Logan |
| Given Name | John David |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Garberville |
| 1935 Residence (County) | Humboldt |
| Highest Grade | No 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 John Logan across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Logan
Son · 1940 · age 9 · b. ~1931 · California
★ You are viewing this record
Sibling
Ruby Logan
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jordan Logan
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Wanda Logan
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Sona Logan
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edna Logan
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Phyllis Logan
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Estelan Logan
Sibling · 1940 · age 12
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
1940 US Federal Census — Humboldt-County, California
Open full size
1940 US Federal Census — Humboldt-County, California
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00208-00022)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Nova Jaques | 7 | Step daughter | — | California |
| 42 | Margaret E Holcomb | 84 | Head | — | Illinois |
| 43 | Sheryl Beacher | 21 | Grandson | Farmer | California |
| 44 | Leonidas Zachary | 74 | Head | Carpenter | Montana |
| 45 | Beulah S Zachary | 30 | Wife | — | Oregon |
| 46 | Delores Nichols | 18 | Lodger | — | California |
| 47 | Arthur Snyder | 12 | Lodger | — | California |
| 48 | May Mcreynolds | 50 | Head | — | California |
| 49 | Sike Mcreynolds | 20 | Son | — | California |
| 50 | Corliss Nunnamaker | 64 | Head | Carpenter | Minnesota |
| 51 | Wynnie V Nunnamaker | 63 | Wife | — | Iowa |
| 52 | Henry H Thacker | 64 | Head | Leaser | Indiana |
| 53 | Ruth R Thacker | 49 | Wife | Leaser | California |
| 54 | Harry Weems | 59 | Head | Owner | Virginia |
| 55 | Blanche R Weems | 57 | Wife | Owner | Missouri |
| 56 | Lester Murray | 42 | Lodger | Labor | California |
| 57 | Ralph Wilson | 31 | Lodger | Labor | Oregon |
| 58 | Robert L Baker | 36 | Head | Contractor | California |
| 59 | Marguerite E Baker | 33 | Wife | — | Illinois |
| 60 | Robert L Baker | 7 | Son | — | California |
| 61 | John R Baker | 4 | Son | — | California |
| 62 | Marguerite J Baker | 2 | Daughter | — | California |
| 63 | Leslie D Logan | 48 | Head | Farmer | California |
| 64 | Floy E Logan | 34 | Wife | — | California |
| 65 | Estelan M Logan | 12 | Daughter | — | California |
| 66 | Phyllis M Logan | 11 | Daughter | — | California |
| 67 | John David Logan THIS PERSON | 9 | Son | — | California |
| 68 | Ruby Alice Logan | 8 | Daughter | — | California |
| 69 | Jordan S Logan | 6 | Son | — | California |
| 70 | Wanda L Logan | 4 | Daughter | — | California |
| 71 | Sona Del Logan | 3 | Daughter | — | California |
| 72 | Edna Dee Logan | 1 | Daughter | — | California |
| 73 | Chester D Logan | 88 | Head | — | Illinois |
| 74 | Cora Logan | 69 | Wife | — | Illinois |
| 75 | Elmer H Logan | 46 | Son | — | California |
| 76 | Oscar W Lindley | 47 | Head | Contractor | California |
| 77 | Gladys B Lindley | 35 | Wife | — | California |
| 78 | Lorna Mae Lindley | 15 | Step daughter | — | California |
| 79 | Zora Hyden | 34 | Head | — | California |
| 80 | Darlene Hyden | 6 | Daughter | — | California |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 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)