MD
Mary Dillon — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Otero-County, Colorado
Our Model Tree links this Mary Dillon across the 1930 and 1940 US Censuses in Otero-County, Colorado (XGBoost, ~Confirmed) — first a daughter (b.~1925), then head of a 10-person household.
Age 15
b. ~1925
Female
Daughter
Born: Colorado
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Otero-County, Colorado |
| Surname | Dillon |
| Given Name | Mary Jo |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Colorado |
| 1935 Residence (City) | La Junta |
| 1935 Residence (County) | Otero |
| Additional Details | |
| Highest Grade | H-2 |
| 1935 Residence | Same place |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
| Township / Ward | La Junta |
| Est. Birth Year | ~1925 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Florence Dillon | Daughter | — | 31 | ~1909 |
| Mary Dillon | Daughter | — | 15 | ~1925 |
| Clarence Dillon | Head | — | 60 | ~1880 |
| Edward Dillon | Son | — | 33 | ~1907 |
| Hillard Dillon | Son | — | 28 | ~1912 |
| Donald Dillon | Son | — | 17 | ~1923 |
| Thomas Dillon | Son | — | 20 | ~1920 |
| Robert Dillon | Son | — | 10 | ~1930 |
| John Dillon | Son | — | 12 | ~1928 |
| Bertha Dillon | Spouse | — | 56 | ~1884 |
Census Appearances
1930
Otero, Colorado
Daughter, age 5
Otero, Colorado · implied b. ~1925 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dillon |
| Given Name | Mary J. |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Nebraska |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1940
Otero-County, Colorado
Daughter, age 15
Otero-County, Colorado · implied b. ~1925 — 10 household members
| Surname | Dillon |
| Given Name | Mary Jo |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Colorado |
| 1935 Residence (City) | La Junta |
| 1935 Residence (County) | Otero |
| Highest Grade | H-2 |
| 1935 Residence | Same place |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
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
Daughter · 1940 · age 15 · b. ~1925 · Colorado
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Sibling
Florence Dillon
Sibling · 1940 · age 31
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donald Dillon
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Dillon
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Dillon
Sibling · 1940 · age 33
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Hillard Dillon
Sibling · 1940 · age 28
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Dillon
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Dillon
Sibling · 1940 · age 12
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 — Otero-County, Colorado
Open full size
1940 US Federal Census — Otero-County, Colorado
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00473-00147)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Lonnie Necks | 16 | Son | New Worker | Colorado |
| 42 | Buford Barber | 35 | Head | Pipe Fitter | New Mexico |
| 43 | May Barber | 37 | Wife | — | Iowa |
| 44 | Franklin Barber | 1 | Son | — | Colorado |
| 45 | Mont Lawsons | 50 | Head | Laborer | Missouri |
| 46 | Zella Lawsons | 39 | Wife | — | Tennessee |
| 47 | Elmer Kinpee | 18 | Son | New Worker | Tennessee |
| 48 | Alonzo Llewelling | 44 | Head | Painter | Kansas |
| 49 | Eunice Llewelling | 37 | Wife | — | Colorado |
| 50 | Alvin Llewelling | 17 | Son | — | Colorado |
| 51 | Iva May Llewelling | 15 | Daughter | — | Colorado |
| 52 | Walter Burnsey | 47 | Head | Truck Driver | Missouri |
| 53 | Lollie Burnsey | 53 | Wife | — | Washington |
| 54 | James Burnsey | 17 | Son | — | Colorado |
| 55 | Marian Burnsey | 13 | Daughter | — | Colorado |
| 56 | Marjorie Burnsey | 11 | Daughter | — | Colorado |
| 57 | Tillis Magee | 75 | Head | — | Alabama |
| 58 | Clarence Dillon | 60 | Head | Mail Clerk | Indiana |
| 59 | Bertha Dillon | 56 | Wife | — | Nebraska |
| 60 | Florence Dillon | 31 | Daughter | Nurse | Nebraska |
| 61 | Edward Dillon | 33 | Son | Farmer | Wyoming |
| 62 | Hillard Dillon | 28 | Son | Farmer | Iowa |
| 63 | Thomas Dillon | 20 | Son | — | Colorado |
| 64 | Donald Dillon | 17 | Son | — | Colorado |
| 65 | Mary Jo Dillon THIS PERSON | 15 | Daughter | — | Colorado |
| 66 | John Dillon | 12 | Son | — | Colorado |
| 67 | Robert Dillon | 10 | Son | — | Colorado |
| 68 | Irene Ray | 29 | Head | Housekeeper | Colorado |
| 69 | Ruby Ray | 10 | Daughter | — | Colorado |
| 70 | Gertrude Ray | 10 | Daughter | — | Colorado |
| 71 | Hazel Ray | 8 | Daughter | — | Colorado |
| 72 | Richard Ray | 7 | Son | — | Colorado |
| 73 | Thomas Ray | 2 | Son | — | Colorado |
| 74 | Ulysses Carter | 35 | Head | Laborer | Kansas |
| 75 | Margaret Carter | 28 | Wife | — | Kansas |
| 76 | Larry Carter | 10 | Son | — | Colorado |
| 77 | Lois Carter | 8 | Daughter | — | Colorado |
| 78 | Lee Carter | 3 | Son | — | Colorado |
| 79 | Louise Carter | 5 | Daughter | — | Colorado |
| 80 | Pete Goffa | 64 | Head | — | Austria |
Related Census Records
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)