MD
Mary Dillon — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Polk-County, Iowa
Our Model Tree links this Mary Dillon across the 1930 and 1940 US Censuses in Polk-County, Iowa (XGBoost, ~Confirmed) — first a spouse (b.~1898), then head of a 8-person household.
Age 42
b. ~1898
Female
Spouse
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Polk-County, Iowa |
| Surname | Dillon |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Des Moines City |
| 1935 Residence (County) | Polk |
| Additional Details | |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Des Moines City |
| Est. Birth Year | ~1898 |
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 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Velma Dillon | Daughter | — | 13 | ~1927 |
| Dora Dillon | Daughter | — | 17 | ~1923 |
| Lenore Dillon | Daughter | — | 15 | ~1925 |
| June Dillon | Daughter | — | 21 | ~1919 |
| Clarence Dillon | Head | — | 42 | ~1898 |
| Donald Dillon | Son | — | 19 | ~1921 |
| Clarence Dillon | Son | — | 21 | ~1919 |
| Mary Dillon | Spouse | — | 42 | ~1898 |
Census Appearances
1930
Polk, Iowa
Spouse, age 31
Polk, Iowa · implied b. ~1899 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dillon |
| Given Name | Mable |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 19 |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Missouri |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Polk-County, Iowa
Spouse, age 42
Polk-County, Iowa · implied b. ~1898 — 8 household members
| Surname | Dillon |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Des Moines City |
| 1935 Residence (County) | Polk |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 Mary Dillon across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Dillon
Spouse · 1940 · age 42 · b. ~1898 · Iowa
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Polk-County, Iowa
Open full size
1940 US Federal Census — Polk-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01194-00033)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Elmer Muslow | 79 | Head | — | Wisconsin |
| 42 | Maria Laughton | 68 | Niece | Housekeeper | Iowa |
| 43 | E. Lyde Hill | 55 | Head | Agent | Kansas |
| 44 | Maggie Hill | 55 | Wife | — | Kansas |
| 45 | Ab Thomas | 22 | Son | — | Iowa |
| 46 | Norman Held | 28 | Head | Salesman | Wisconsin |
| 47 | Helen Held | 26 | Wife | — | Missouri |
| 48 | Mildred Thomas | 34 | Head | Stenographer | Missouri |
| 49 | Miriam Thomas | 59 | Mother | — | Ohio |
| 50 | David Thomas | 60 | Father | — | Missouri |
| 51 | Katherine James | 45 | Lodger | Stenographer | Iowa |
| 52 | Earl Shivers | 50 | Head | Gen. Foreman | Iowa |
| 53 | Adele Shivers | 44 | Wife | — | Iowa |
| 54 | Barbara Shivers | 18 | Daughter | — | Iowa |
| 55 | James Shivers | 12 | Son | — | Iowa |
| 56 | Elizabeth Shivers | 4 | Daughter | — | Iowa |
| 57 | Edward Shultz | 82 | Head | Night-Watchman | Pennsylvania |
| 58 | Alice Shultz | 80 | Wife | — | Illinois |
| 59 | Edna Shultz | 38 | Daughter | School Teacher | Illinois |
| 60 | Robert Sauve | 39 | Head | Operator | Canada |
| 61 | Grace Sauve | 35 | Wife | — | Missouri |
| 62 | Anna Joy Sauve | 12 | Daughter | — | Nebraska |
| 63 | Wiley Huffman | 46 | Head | Fireman | Illinois |
| 64 | Lula Huffman | 45 | Wife | Instructor | Iowa |
| 65 | Edna Nelson | 20 | Lodger | — | Iowa |
| 66 | Allen Dillon | 23 | Head | Laborer | N. Mexico |
| 67 | Dorothy Dillon | 21 | Wife | Secretary | Montana |
| 68 | Clarence Dillon | 42 | Head | Field Executive | Kentucky |
| 69 | Mary Dillon THIS PERSON | 42 | Wife | — | Iowa |
| 70 | Clarence Jr. Dillon | 21 | Son | — | Iowa |
| 71 | June Dillon | 21 | Daughter | — | Iowa |
| 72 | Donald Dillon | 19 | Son | — | Iowa |
| 73 | Dora Dillon | 17 | Daughter | — | Iowa |
| 74 | Lenore Dillon | 15 | Daughter | — | Iowa |
| 75 | Velma Dillon | 13 | Daughter | — | Iowa |
| 76 | Virgil Luce | 29 | Head | W.P.A. Clerk | Iowa |
| 77 | Lucille Luce | 26 | Wife | — | Iowa |
| 78 | Virgil Jr. Luce | 8 | Son | — | Iowa |
| 79 | Bonnie Luce | 7 | Daughter | — | Iowa |
| 80 | Barbara Luce | 3 | Daughter | — | Iowa |
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)