JD
John Dillon — 1940 US Census Record
Model Tree available1940 United States Federal Census · Multnomah-County, Oregon
Our Model Tree links this John Dillon across the 1920, 1930 and 1940 US Censuses in Multnomah-County, Oregon (XGBoost, ~Confirmed), with identified parents Michael & Nellie — first a head (b.~1901), then head of a 4-person household.
Age 39
b. ~1901
Male
Head
Born: South Dakota
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Multnomah-County, Oregon |
| Surname | Dillon |
| Given Name | John P. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | South Dakota |
| 1935 Residence (City) | Portland city |
| 1935 Residence (County) | Multnomah |
| Additional Details | |
| Occupation | Machinist |
| Industry | Oil Refinery |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1500 |
| Highest Grade | H-2 |
| 1935 Residence | Same place |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
| Occupation | Machinist |
| Township / Ward | Portland City |
| Est. Birth Year | ~1901 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Anne Dillon | Daughter | — | 1 | ~1939 |
| John Dillon | Head | — | 39 | ~1901 |
| Patrick Dillon | Son | — | ~1940 | |
| Mona Dillon | Spouse | — | 32 | ~1908 |
Census Appearances
1920
Multnomah, Oregon
Son, age 19
Multnomah, Oregon · implied b. ~1901 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dillon |
| Given Name | John P. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | South Dakota |
| Father's Birthplace | Texas |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
1930
Multnomah, Oregon
Son, age 29
Multnomah, Oregon · implied b. ~1901 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dillon |
| Given Name | John C. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | South Dakota |
| Father's Birthplace | Texas |
| Mother's Birthplace | Irish Free State |
| Occupation | Laborer |
| Industry | Oil station |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
1940
Multnomah-County, Oregon
Head, age 39
Multnomah-County, Oregon · implied b. ~1901 — 4 household members
| Surname | Dillon |
| Given Name | John P. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | South Dakota |
| 1935 Residence (City) | Portland city |
| 1935 Residence (County) | Multnomah |
| Occupation | Machinist |
| Industry | Oil Refinery |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1500 |
| Highest Grade | H-2 |
| 1935 Residence | Same place |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
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 Dillon across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Michael Dillon (~0.92 confidence) and mother Nellie Dillon (~0.92 confidence) and mother Nellie Dillon (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Michael Dillon
b. ~1875
Source father
● Household
· direct · ~0.92
Mother
Nellie Dillon
b. ~1875
Source mother
● Household
· direct · ~0.92
Mother
Nellie Dillon
b. ~1876
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Dillon
Head · 1940 · age 39 · b. ~1901 · Oregon
★ 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 — Multnomah-County, Oregon
Open full size
1940 US Federal Census — Multnomah-County, Oregon
Page Contents
37 people indexed on this census page (nara:1940:m-t0627-03393-00144)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Frank E. Pearson | 47 | Head | Foreman | Washington |
| 42 | Mabel Q. Pearson | 42 | Wife | — | South Dakota |
| 43 | Jeanne Pearson | 17 | Daughter | — | Washington |
| 44 | Howard M. Jones | 24 | Head | Salesman | Oregon |
| 45 | Floe Q. Jones | 24 | Wife | — | Idaho |
| 46 | Douglas Jones | 1 | Son | — | Oregon |
| 47 | Robert Phillips | 31 | Head | Machinist | Iowa |
| 48 | Yannina J. Phillips | 28 | Wife | — | Minnesota |
| 49 | John P. Dillon THIS PERSON | 39 | Head | Machinist | South Dakota |
| 50 | Mona R. Dillon | 32 | Wife | — | Canada-French |
| 51 | Anne M. Dillon | 1 | Daughter | — | Oregon |
| 52 | Patrick J. Dillon | 0 | Son | — | Oregon |
| 53 | Robert Simmons | 42 | Head | Motorman | England |
| 54 | Lucy Simmons | 46 | Wife | — | Russia |
| 55 | Maurice Hooff | 39 | Head | Manager | Holland |
| 56 | Esther A. Hooff | 37 | Wife | — | Kansas |
| 57 | Merawford|Mcrawford Hooff | 17 | Son | — | Canada |
| 58 | Robert J. Hooff | 13 | Son | — | Oregon |
| 59 | Ben J. Bechtel | 54 | Head | Pharmacist | Iowa |
| 60 | Fannie P. Bechtel | 52 | Wife | — | Colorado |
| 61 | Henry J. Van Loo | 47 | Head | Motorman | Oregon |
| 62 | May M. Van Loo | 55 | Wife | — | Iowa |
| 63 | Frank H. Kelly | 72 | Head | Stevedore | Illinois |
| 64 | Sadie Kelly | 66 | Wife | — | Illinois |
| 66 | Robert Desiata | 38 | Head | Yard Man | Oregon |
| 67 | Ruth Desiata | 41 | Wife | — | Minnesota |
| 68 | Lucille Stadig | 21 | Daughter | Saleslady | Montana |
| 69 | Lorin A. Walker | 31 | Head | Saleslady|Saleslady | Oregon |
| 70 | Margaret M. Walker | 29 | Wife | — | Oregon |
| 71 | June M. Walker | 6 | Daughter | — | Oregon |
| 72 | Arnold Walker | 1 | Son | — | Oregon |
| 73 | James B. Burman | 51 | Head | Clerk | Michigan |
| 74 | Myrtle B. Burman | 43 | Wife | — | Washington |
| 75 | James B. Jr. Burman | 22 | Son | — | Oregon |
| 76 | Anton Neils | 35 | Head | Salesmanager | South Dakota |
| 77 | Valeda Neils | 26 | Wife | — | Oregon |
| 78 | William Hadley | 23 | Brother-in-law | — | Oregon |
Pedigree Summary
John
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)