MD
Mary Duncan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Pueblo-County, Colorado
Our Model Tree links this Mary Duncan across the 1920, 1930 and 1940 US Censuses in Pueblo-County, Colorado (XGBoost, ~Confirmed) — first a spouse (b.~1866), then head of a 4-person household.
Age 74
b. ~1866
Female
Spouse
Born: Kansas
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Pueblo-County, Colorado |
| Surname | Duncan |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 74 |
| Marital Status | Married |
| Birthplace | Kansas |
| 1935 Residence (City) | Pueblo City |
| 1935 Residence (County) | Pueblo |
| Additional Details | |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
| Township / Ward | Pueblo City |
| Est. Birth Year | ~1866 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Dorothy Gadlin | Daughter | — | 11 | ~1929 |
| Roy Gadlin | Other | — | 9 | ~1931 |
| Hazel Gadlin | Other | — | 39 | ~1901 |
| Mary Duncan | Spouse | — | 74 | ~1866 |
Census Appearances
1920
Pueblo, Colorado
Spouse, age 49
Pueblo, Colorado · implied b. ~1871 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Duncan |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Kansas |
| Father's Birthplace | Unknown |
| Mother's Birthplace | Unknown |
| Can Read | No |
| Can Write | No |
| Speaks English | Yes |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1930
Pueblo, Colorado
Other, age 61
Pueblo, Colorado · implied b. ~1869 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Duncan |
| Given Name | Mary |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | Black |
| Age | 61 |
| Marital Status | Married |
| Birthplace | Kansas |
| Age at First Marriage | 27 |
| Father's Birthplace | Kansas |
| Mother's Birthplace | Kansas |
| Can Read/Write | Yes |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1940
Pueblo-County, Colorado
Spouse, age 74
Pueblo-County, Colorado · implied b. ~1866 — 4 household members
| Surname | Duncan |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 74 |
| Marital Status | Married |
| Birthplace | Kansas |
| 1935 Residence (City) | Pueblo City |
| 1935 Residence (County) | Pueblo |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
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 Duncan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Duncan
Spouse · 1940 · age 74 · b. ~1866 · Colorado
★ 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 — Pueblo-County, Colorado
Open full size
1940 US Federal Census — Pueblo-County, Colorado
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00476-00483)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mary Duncan THIS PERSON | 74 | Wife | — | Kansas |
| 2 | Hazel D. Gadlin | 39 | Roomer | Maid | New Mexico |
| 3 | Dorothy Gadlin | 11 | Daughter | — | Colorado |
| 4 | Roy Gadlin | 9 | Roomer | — | Colorado |
| 5 | Tillie O. Self | 56 | Head | — | Sweden |
| 6 | Albert Carton | 26 | Son | Attendant | Colorado |
| 7 | Robert Self | 14 | Son | — | Colorado |
| 8 | Laurena Ennis | 72 | Head | Watchman | New York |
| 9 | Nora Ennis | 64 | Wife | — | Irish Free State |
| 10 | Hugh Ennis | 28 | Son | Machinist | Colorado |
| 11 | Frank Strachan | 21 | Boarder | Shipping Clerk | Colorado |
| 12 | Shack Moraque | 57 | Head | Laborer | South Carolina |
| 13 | Maggie Moraque | 57 | Wife | — | Kansas |
| 14 | John Elbeck | 35 | Roomer | Weigher | Colorado |
| 15 | Anthony Toteo | 40 | Head | Mechanic | Louisiana |
| 16 | Helen Toteo | 35 | Wife | — | Colorado |
| 17 | Angela Toteo | 17 | Daughter | — | Colorado |
| 18 | Bertha Toteo | 15 | Daughter | — | Colorado |
| 19 | Lucille Gadlin | 29 | Wife | — | Colorado |
| 20 | Head Roas | None | M | Coke Ovens | — |
| 21 | Lewis Roas | 9 | Son | — | Colorado |
| 22 | George Roas | 8 | Son | — | Colorado |
| 23 | Lillie Williams | 28 | Sister | Maid | Missouri |
| 24 | John Harrell | 48 | Uncle | Laborer | Mississippi |
| 25 | M. F. Hampton | 52 | Head | Postal Clerk | Kentucky |
| 26 | Mary Hampton | 51 | Wife | — | Kentucky |
| 27 | Jack Hampton | 17 | Son | — | Colorado |
| 28 | Burton Alexander | 25 | Nephew | Gardner | Kansas |
| 29 | Morgan Wickman | 31 | Head | Dentist | Pennsylvania |
| 30 | Ellen Wickman | 26 | Wife | — | New Jersey |
| 31 | Arthur Smith | 36 | Head | Laborer | Kansas |
| 32 | Grace Smith | 36 | Wife | — | Oklahoma |
| 33 | J. H. Mcdowell | 37 | Head | Truck Driver | Arkansas |
| 34 | Helen Mcdowell | 32 | Wife | — | New Mexico |
| 35 | Helen Mcdowell | 9 | Daughter | — | Nebraska |
| 36 | Louise Zupan | 67 | Wife | — | Austria |
| 37 | William Tegak | 23 | Head | Packer | Colorado |
| 38 | Angeline Tegak | 22 | Sister | Clerk | Colorado |
| 39 | Joseph Miklavic | 19 | Stepbrother | — | Colorado |
| 40 | Barbara Miklavic | 18 | Stepsister | — | Colorado |
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)