BJ
Blanche Johnson — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Polk, Oregon
Our Model Tree links this Blanche Johnson across the 1920 and 1930 US Censuses in Polk, Oregon (XGBoost, ~Confirmed) — first a daughter (b.~1915), then head of a 9-person household.
Age 15
b. ~1915
Female
Daughter
Born: Oregon
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Polk, Oregon |
| Surname | Johnson |
| Given Name | Blanche L. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Oregon |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
| Township / Ward | Independence City Part Of |
| Est. Birth Year | ~1915 |
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 Blanche | Age | Birth yr |
|---|---|---|---|---|
| Blanche Johnson | Other | — | 49 | ~1881 |
| Joyce Johnson | Daughter | — | 11 | ~1919 |
| Kathleen Johnson | Daughter | — | 8 | ~1922 |
| Ben Johnson | Son | — | 25 | ~1905 |
| Ben Johnson | Head | — | 53 | ~1877 |
| Vincent Johnson | Son | — | 18 | ~1912 |
| Blanche Johnson | Daughter | — | 15 | ~1915 |
| Cyrus Johnson | Son | — | 25 | ~1905 |
| Zora Johnson | Daughter | — | 29 | ~1901 |
Census Appearances
1920
Polk, Oregon
Daughter, age 5
Polk, Oregon · implied b. ~1915 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Blanche |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Oregon |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Speaks English | Yes |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
1930
Polk, Oregon
Daughter, age 15
Polk, Oregon · implied b. ~1915 — 9 household members
| Surname | Johnson |
| Given Name | Blanche L. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Oregon |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Can Read/Write | Yes |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
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 Blanche Johnson across 2 US Census years (1920 and 1930) in Polk, Oregon, using XGBoost record linkage.
Show:
This person
Anchor record
Blanche Johnson
Daughter · 1930 · age 15 · b. ~1915 · Oregon
★ You are viewing this record
Sibling
Kathleen Johnson
Sibling · 1930 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Vincent Johnson
Sibling · 1930 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Cyrus Johnson
Sibling · 1930 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Zora Johnson
Sibling · 1930 · age 29
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ben Johnson
Sibling · 1930 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joyce Johnson
Sibling · 1930 · age 11
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 — Polk, Oregon
Open full size
1930 US Federal Census — Polk, Oregon
Page Contents
50 people indexed on this census page (ia:1930:15thcensus1948unit:0814)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mark Ebbs | 25 | Head | Manager | Wisconsin |
| 2 | Laura V. Ebbs | 25 | Wife-H | — | Oregon |
| 3 | Robert L. Ebbs | 5 | Son | — | Oregon |
| 4 | Albert L. Harding | 46 | Head | Section Foreman | Nebraska |
| 5 | Bertha Harding | 47 | Wife-H | — | Pennsylvania |
| 6 | Madeline D. Harding | 22 | Daughter | Teacher | Nebraska |
| 7 | Edwin D. Harding | 17 | Son | — | Oregon |
| 8 | William H. Beckley | 50 | Head | Proprietor | Illinois |
| 9 | Sophia Beckley | 46 | Wife-H | — | Iowa |
| 10 | John Dickinson | 77 | Head | — | England |
| 11 | Lizzie E. Dickinson | 72 | Wife-H | — | England |
| 12 | Harry M. Dickinson | 54 | Head | — | Iowa |
| 13 | George W. Girard | 58 | Head | Millwright | Michigan |
| 14 | Maude M. Girard | 54 | Wife-H | — | Iowa |
| 15 | Robert D. Girard | 25 | Son | Laborer | Oregon |
| 16 | Arthur R. Holmes | 58 | Head | Proprietor | Oregon |
| 17 | Nellie Holmes | 59 | Wife-H | — | Oregon |
| 18 | Juanita Holmes | 23 | Daughter | — | Oregon |
| 19 | James H. Hart | 32 | Head | Operator | Arkansas |
| 20 | Gladys L. Hart | 33 | Wife-H | — | Oregon |
| 21 | Sadie Cochran | 18 | Lodger | — | Washington |
| 22 | Ben F. Johnson | 53 | Head | Contractor | Iowa |
| 23 | Blanche P. Johnson | 49 | Wife-H | — | Iowa |
| 24 | Zora S. Johnson | 29 | Daughter | Teacher | Iowa |
| 25 | Ben H. Johnson | 25 | Son | Bookkeeper | Oregon |
| 26 | Cyrus B. Johnson | 25 | Son | Laborer | Oregon |
| 27 | Vincent F. Johnson | 18 | Son | — | Oregon |
| 28 | Blanche L. Johnson THIS PERSON | 15 | Daughter | — | Oregon |
| 29 | Joyce K. Johnson | 11 | Daughter | — | Oregon |
| 30 | Kathleen L. Johnson | 8 | Daughter | — | Oregon |
| 31 | Harry R. Clement | 40 | Head | Clerk | Illinois |
| 32 | Grace Clement | 29 | Wife-H | — | Oregon |
| 33 | Irene M. Clement | 3 | Daughter | — | Oregon |
| 34 | Jesse Phelps | 51 | Head | Logger | Oregon |
| 35 | Ruby L. Phelps | 51 | Wife-H | — | Oregon |
| 36 | Ila May Phelps | 16 | Daughter | — | Oregon |
| 37 | Robert H. Baker | 48 | Head | Bookkeeper | Oregon |
| 38 | Nellie L. Baker | 46 | Wife-H | — | Oregon |
| 39 | Robert L. Baker | 19 | Son | — | Oregon |
| 40 | Elizabeth R. Baker | 13 | Daughter | — | Oregon |
| 41 | Oscar H. Fredrickson | 32 | Head | Brakeman | Oregon |
| 42 | Irma V. Fredrickson | 28 | Wife-H | — | Oregon |
| 43 | Lenora J. Fredrickson | 9 | Daughter | — | Oregon |
| 44 | Charles S. Fredrickson | 8 | Son | — | Oregon |
| 45 | Robert L. Fredrickson | 2 | Son | — | Oregon |
| 46 | Helen M. Dumaine | 10 | Boarder | — | Wisconsin |
| 47 | Peter Peterson | 56 | Head | Section Foreman | Denmark |
| 48 | Georgia Peterson | 49 | Wife-H | — | Illinois |
| 49 | Lizzie L. Peterson | 16 | Daughter | — | Oregon |
| 50 | Alice L. O'Connor | 12 | Step-Dr | — | Montana |
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)