JK
John Kern — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Coos, Oregon
Our Model Tree links this John Kern across the 1930 and 1940 US Censuses in Coos, Oregon (XGBoost, ~Confirmed) — first a son (b.~1925), then head of a 8-person household.
Age 5
b. ~1925
Male
Son
Born: Montana
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Coos, Oregon |
| Surname | Kern |
| Given Name | John C. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Montana |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Canada-English |
| Additional Details | |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
| Township / Ward | North Bend City Pt |
| Est. Birth Year | ~1925 |
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.
8 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Richard Kern | Son | — | 3 | ~1927 |
| John Kern | Son | — | 5 | ~1925 |
| Ray Kern | Head | — | 37 | ~1893 |
| Margaret Kern | Daughter | — | 11 | ~1919 |
| Ray Kern | Son | — | 13 | ~1917 |
| Nellie Kern | Daughter | — | 8 | ~1922 |
| Alice Kern | Other | — | 33 | ~1897 |
| William Kern | Son | — | 14 | ~1916 |
Census Appearances
1930
Coos, Oregon
Son, age 5
Coos, Oregon · implied b. ~1925 — 8 household members
| Surname | Kern |
| Given Name | John C. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Montana |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Canada-English |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
1940
Coos-County, Oregon
Son, age 15
Coos-County, Oregon · implied b. ~1925 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kerns |
| Given Name | John E |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Montana |
| 1935 Residence (City) | North Bend City |
| 1935 Residence (County) | Coos |
| Income (1939) | 0 |
| Highest Grade | H-2 |
| 1935 Residence | Same House |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
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 Kern across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Kern
Son · 1930 · age 5 · b. ~1925 · Oregon
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Sibling
Margaret Kern
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ray Kern
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Kern
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Kern
Sibling · 1930 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Nellie Kern
Sibling · 1930 · age 8
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 — Coos, Oregon
Open full size
1930 US Federal Census — Coos, Oregon
Page Contents
28 people indexed on this census page (ia:1930:15thcensus1942unit:0057)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | George T. Clements | 46 | Head | Watchman | England |
| 52 | Emily R. Clements | 57 | Wife-H | — | New York |
| 53 | Hazel W. Clements | 18 | Son | — | Montana |
| 54 | George F. Humbert | 27 | Head | Logger | Oregon |
| 55 | Ruby D. Humbert | 23 | Wife-H | Solderer Girl | Oregon |
| 56 | Pearl Heller | 21 | Sister-in-law | Laborer | Oregon |
| 57 | Betty J. Humbert | 5 | Niece | — | Oregon |
| 58 | Leland Humbert | 3 | Son | — | Oregon |
| 59 | Ray L. Kern | 37 | Head | Longshoreman | Minnesota |
| 60 | Alice E. Kern | 33 | Wife-H | — | Canada-English |
| 61 | William W. Kern | 14 | Son | — | Minnesota |
| 62 | Ray L. Kern | 13 | Son | — | Minnesota |
| 63 | Margaret L. Kern | 11 | Daughter | — | Minnesota |
| 64 | Nellie M. Kern | 8 | Daughter | — | Minnesota |
| 65 | John C. Kern THIS PERSON | 5 | Son | — | Montana |
| 66 | Richard H. Kern | 3 | Son | — | Oregon |
| 67 | Ralph G. Johnson | 24 | Head | Mechanic | Pennsylvania |
| 68 | Ray L. Scovill | 35 | Head | Chiropractor | South Dakota |
| 69 | Eva K. Scovill | 28 | Wife-H | — | Oregon |
| 70 | Arnell H. Stanford | 40 | Head | Logger | Washington |
| 71 | Dorothy A. Stanford | 28 | Wife-H | — | Washington |
| 72 | Glenn H. Stanford | 9 | Son | — | Oregon |
| 73 | Gordon E. Stanford | 7 | Son | — | Oregon |
| 74 | Frank Wharton | 60 | Head | Machinist | Illinois |
| 75 | Hattie Wharton | 59 | Wife-H | — | Illinois |
| 98 | W. H. Hardenburg | 71 | Partner | Laborer | Pennsylvania |
| 99 | Rufus H. Cake | 47 | Partner | Floor Worker | Kansas |
| 100 | Wilfred C. Mcwane | 5 | Son | — | Oregon |
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)