JP
John Power — 1940 US Census Record
Model Tree available1940 United States Federal Census · King-County, Washington
Our Model Tree links this John Power across the 1920, 1930 and 1940 US Censuses in King-County, Washington (XGBoost, ~Confirmed), with identified parents Thomas & William — first a son (b.~1918), then head of a 3-person household.
Age 22
b. ~1918
Male
Son
Born: Washington
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | King-County, Washington |
| Surname | Power |
| Given Name | John F. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Washington |
| 1935 Residence (City) | Seattle City |
| 1935 Residence (County) | King |
| Additional Details | |
| Highest Grade | C 4 |
| 1935 Residence | Same Place |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
| Township / Ward | Seattle City |
| Est. Birth Year | ~1918 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Caroline Power | Daughter | — | 24 | ~1916 |
| John Power | Son | — | 22 | ~1918 |
| Thomas Power | Head | — | 58 | ~1882 |
Census Appearances
1920
King, Washington
Son, age 2
King, Washington · implied b. ~1918 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Power |
| Given Name | John |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Canada |
| Mother's Birthplace | Canada |
| Occupation | none |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1930
King, Washington
Other, age 12
King, Washington · implied b. ~1918 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Power |
| Given Name | John L. |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Canada |
| Mother's Birthplace | Canada |
| Can Read/Write | Yes |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1940
King-County, Washington
Son, age 22
King-County, Washington · implied b. ~1918 — 3 household members
| Surname | Power |
| Given Name | John F. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Washington |
| 1935 Residence (City) | Seattle City |
| 1935 Residence (County) | King |
| Highest Grade | C 4 |
| 1935 Residence | Same Place |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
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 Power across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Thomas Power (~0.92 confidence) and father William Power (~0.92 confidence) and mother Irene Power (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Thomas Power
b. ~1882
Source father
● Household
· direct · ~0.92
Father
William Power
b. ~1883
Source father
● Household
· direct · ~0.92
Mother
Irene Power
b. ~1888
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Power
Son · 1940 · age 22 · b. ~1918 · Washington
★ You are viewing this record
Sibling
Caroline Power
Sibling · 1940 · age 24
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 — King-County, Washington
Open full size
1940 US Federal Census — King-County, Washington
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04378-00557)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Agnes Beyerle | 58 | Head | Housekeeper | Germany |
| 42 | Francis Hardyck | 44 | Head | Printer | California |
| 43 | Alice Hardyck | 45 | Wife | — | California |
| 44 | Irene Hardyck | 17 | Daughter | Janitor | California |
| 45 | Theodore Hardyck | 15 | Son | — | California |
| 46 | Margie Hardyck | 12 | Daughter | — | California |
| 47 | David Hardyck | 9 | Son | — | California |
| 48 | Clifford Birkel | 43 | Head | Electrician | Minnesota |
| 49 | Emma Birkel | 42 | Wife | Book-Keeper | Washington |
| 50 | James O. Nelson | 77 | Roomer | — | California |
| 51 | Alfred B. Anderson | 53 | Head | Manager | Kansas |
| 52 | Helen C. Anderson | 50 | Wife | — | Iowa |
| 53 | Paul S. Anderson | 22 | Son | — | Washington |
| 54 | Thomas Power | 58 | Head | — | Canada English |
| 55 | Caroline Power | 24 | Daughter | Assistant Buyer | Washington |
| 56 | John F. Power THIS PERSON | 22 | Son | — | Washington |
| 57 | James F. Hewitt | 59 | Head | Manager | New York |
| 58 | J. Katie Hewitt | 53 | Wife | — | Texas |
| 59 | Lee Hewitt | 18 | Son | Clerk | Washington |
| 60 | Kathleen Hewitt | 15 | Daughter | Bookkeeper | Washington |
| 61 | Oleson Jacobs | 52 | Head | Dairyman | Michigan |
| 62 | Leah Jacobs | 17 | Daughter | — | Washington |
| 63 | Grace Clark | 56 | Head | — | Nebraska |
| 64 | Phyllis Clark | 22 | Daughter | — | Washington |
| 65 | Andrew Olasson | 75 | Head | — | Norway |
| 66 | Olive Olasson | 75 | Wife | — | Norway |
| 67 | Wallace Olasson | 45 | Daughter | Music Clerk | Washington |
| 68 | Grace Olasson | 38 | Daughter | Manager | Washington |
| 69 | Charles Morrison | 66 | Head | Retail Paint | Canada |
| 70 | Alice P. Morrison | 59 | Wife | Saleslady | Arkansas |
| 71 | Morris N. Graham | 82 | Head | — | New York |
| 72 | Walter R. Graham | 51 | Son | Truck Driver | Minnesota |
| 73 | Dorothy F. Graham | 42 | Wife | — | Illinois |
| 74 | William Yamato | 50 | Head | Mechanic | Missouri |
| 75 | Ethel Yamato | 49 | Wife | — | Missouri |
| 76 | Grace Hossmann | 42 | Head | Reader | Minnesota |
| 77 | Frederick Gellam | 38 | Head | Draughtsman | Minnesota |
| 78 | Eleene Gellam | 38 | Wife | — | Michigan |
| 79 | Patrick Gellam | 5 | Son | — | Washington |
| 80 | Dale Currie | 7 | Ward | — | Washington |
Pedigree Summary
John + 1 sibling
Gen 1 · 3 parents
~0.92
Max depth 4 (1900–1950 window)
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)