WM
William Montgomery — 1940 US Census Record
Model Tree available1940 United States Federal Census · King-County, Washington
Our Model Tree links this William Montgomery across the 1920, 1930 and 1940 US Censuses in King-County, Washington (XGBoost, ~Confirmed), with identified parents William & Grace — first a head (b.~1912), then head of a 3-person household.
Age 28
b. ~1912
Male
Head
Born: Washington
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | King-County, Washington |
| Surname | Montgomery |
| Given Name | William W. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Washington |
| 1935 Residence (City) | Seattle City |
| 1935 Residence (County) | King |
| Additional Details | |
| Occupation | Lawyer |
| Industry | Private office |
| Class of Worker | OA |
| Hours Worked | 44 |
| Income (1939) | 1600 |
| Highest Grade | C-5 |
| 1935 Residence | Same place |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
| Occupation | Lawyer |
| Township / Ward | Seattle City |
| Est. Birth Year | ~1912 |
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 William | Age | Birth yr |
|---|---|---|---|---|
| William Montgomery | Head | — | 28 | ~1912 |
| William Montgomery | Son | — | ~1940 | |
| Alice Montgomery | Spouse | — | 25 | ~1915 |
Census Appearances
1920
King, Washington
Son, age 7
King, Washington · implied b. ~1913 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Montgomery |
| Given Name | William E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | New York |
| Mother's Birthplace | North Dakota |
| Occupation | none |
| Can Read | Yes |
| Speaks English | Yes |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1930
King, Washington
Son, age 17
King, Washington · implied b. ~1913 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Montgomery |
| Given Name | William S. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | New York |
| Mother's Birthplace | North Dakota |
| Can Read/Write | Yes |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1940
King-County, Washington
Head, age 28
King-County, Washington · implied b. ~1912 — 3 household members
| Surname | Montgomery |
| Given Name | William W. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Washington |
| 1935 Residence (City) | Seattle City |
| 1935 Residence (County) | King |
| Occupation | Lawyer |
| Industry | Private office |
| Class of Worker | OA |
| Hours Worked | 44 |
| Income (1939) | 1600 |
| Highest Grade | C-5 |
| 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 William Montgomery across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father William Montgomery (~0.92 confidence) and mother Grace Montgomery (~0.92 confidence) and father William Montgomery (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Montgomery
b. ~1888
Source father
● Household
· direct · ~0.92
Mother
Grace Montgomery
b. ~1889
Source mother
● Household
· direct · ~0.92
Father
William Montgomery
b. ~1889
Source father
● Household
· direct · ~0.92
This person
Anchor record
William Montgomery
Head · 1940 · age 28 · b. ~1912 · Washington
★ You are viewing this record
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-t0627-04375-00407)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Edward Lewis Lieser | 29 | Head | Salesman | Washington |
| 2 | Ruth Carol Lieser | 25 | Wife | — | Wisconsin |
| 3 | Stuart C. Lieser | 3 | Son | — | Washington |
| 4 | Gwendolyn Hutten | 39 | Head | — | Nebraska |
| 5 | Robert C. Hutten | 15 | Son | Paper Carrier | Nebraska |
| 6 | C. Charles Hutten | 7 | Son | — | Washington |
| 7 | Folly H. Henkley | 41 | Head | Wringerman | Illinois |
| 8 | Marion Henkley | 41 | Wife | — | North Dakota |
| 9 | Donald R. Henkley | 11 | Son | — | Washington |
| 10 | Archibald J. Kent | 54 | Head | Manager | England |
| 11 | Martha M. Kent | 59 | Wife | — | England |
| 12 | Martha M. Kent | 24 | Daughter | Stenographer | Montana |
| 13 | Sanford Mcbride | 42 | Head | Automobile Mechanic | Iowa |
| 14 | Florence Mcbride | 44 | Wife | Seamstress | Washington |
| 15 | Hans Bruksner | 44 | Head | Clerk | Switzerland |
| 16 | Lillian Bruksner | 37 | Wife | — | Washington |
| 17 | Janice Bruksner | 5 | Daughter | — | Washington |
| 18 | Winifred Herbert | 55 | Head | — | Minnesota |
| 19 | Hans C. Olson | 56 | Head | Office Manager | Wisconsin |
| 20 | Augusta Olson | 87 | Mother | — | Norway |
| 21 | Anna Nanami | 61 | Sister | — | Wisconsin |
| 22 | Bruce Fallwell | 33 | Head | Manager | New Mexico |
| 23 | Marie R. Fallwell | 32 | Wife | — | Washington |
| 24 | Jeanette Fallwell | 13 | Daughter | — | Utah |
| 25 | William W. Montgomery THIS PERSON | 28 | Head | Lawyer | Washington |
| 26 | Alice L. Montgomery | 25 | Wife | — | Washington |
| 27 | William W. Jr. Montgomery | 0 | Son | — | Washington |
| 28 | Walter Kirkam | 42 | Head | Shop Superintendent | Iowa |
| 29 | Ethel Kirkam | 38 | Wife | — | Missouri |
| 30 | Virginia Kirkam | 16 | Daughter | — | Washington |
| 31 | Albert G. Gustafson | 73 | Head | — | Sweden |
| 32 | Catherine Gustafson | 66 | Wife | — | Sweden |
| 33 | E. W. Lysene | 52 | Head | Furnace Man | Ohio |
| 34 | Signe Lysene | 49 | Wife | — | Kansas |
| 35 | Carl C. Neuhart | 46 | Head | Truck Driver | Nebraska |
| 36 | Alice M. Neuhart | 41 | Wife | — | So. Dakota |
| 37 | Robert L. Neuhart | 14 | Son | — | Washington |
| 38 | Donald L. Neuhart | 9 | Son | — | Washington |
| 39 | Gerald L. Neuhart | 2 | Son | — | Washington |
| 40 | H. B. Lallee | 45 | Head | Engineer | Washington |
Pedigree Summary
William
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)