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Margaret Bradley — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Denver-County, Colorado
Our Model Tree links this Margaret Bradley across the 1930 and 1940 US Censuses in Denver-County, Colorado (XGBoost, ~Confirmed) — first a daughter (b.~1927), then head of a 10-person household.
Age 13
b. ~1927
Female
Daughter
Born: Colorado
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Denver-County, Colorado |
| Surname | Bradley |
| Given Name | Margaret M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Colorado |
| 1935 Residence (City) | City & County Denver |
| 1935 Residence (County) | Denver |
| Additional Details | |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
| Township / Ward | City County Denver |
| Est. Birth Year | ~1927 |
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 Margaret | Age | Birth yr |
|---|---|---|---|---|
| Margaret Bradley | Daughter | — | 13 | ~1927 |
| Mary Bell | Other | — | 59 | ~1881 |
| Harold Bradley | Head | — | 41 | ~1899 |
| Harold Bradley | Son | — | 19 | ~1921 |
| Richard Bradley | Son | — | ~1940 | |
| Robert Bradley | Son | — | 15 | ~1925 |
| Helen Bradley | Spouse | — | 40 | ~1900 |
| John Bradley | Son | — | 5 | ~1935 |
| Dorothy Bradley | Daughter | — | 12 | ~1928 |
| Ruth Bradley | Daughter | — | 17 | ~1923 |
Census Appearances
1930
Denver, Colorado
Daughter, age 3
Denver, Colorado · implied b. ~1927 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Bradley |
| Given Name | Mary M. |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Colorado |
| Mother's Birthplace | Missouri |
| Occupation | none |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1940
Denver-County, Colorado
Daughter, age 13
Denver-County, Colorado · implied b. ~1927 — 10 household members
| Surname | Bradley |
| Given Name | Margaret M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Colorado |
| 1935 Residence (City) | City & County Denver |
| 1935 Residence (County) | Denver |
| Highest Grade | 8 |
| 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 Margaret Bradley across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Margaret Bradley
Daughter · 1940 · age 13 · b. ~1927 · Colorado
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Sibling
John Bradley
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Bradley
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Bradley
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harold Bradley
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Bradley
Sibling · 1940 · age
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Bradley
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 — Denver-County, Colorado
Open full size
1940 US Federal Census — Denver-County, Colorado
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-00485-00893)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Harold A. Bradley | 41 | Head | Freight Checker | Colorado |
| 2 | Helen M. Bradley | 40 | Wife | — | Missouri |
| 3 | Harold A. Jr. Bradley | 19 | Son | Baker | Colorado |
| 4 | Ruth E. Bradley | 17 | Daughter | — | Colorado |
| 5 | Robert B. Bradley | 15 | Son | — | Colorado |
| 6 | Margaret M. Bradley THIS PERSON | 13 | Daughter | — | Colorado |
| 7 | Dorothy M. Bradley | 12 | Daughter | — | Colorado |
| 8 | John M. Bradley | 5 | Son | — | Colorado |
| 9 | Richard W. Bradley | 0 | Son | — | Colorado |
| 10 | Mary A. Bell | 59 | Mother-in-law | Sales Lady | Ohio |
| 11 | Marius Nissen | 58 | Head | Truck Driver | Denmark |
| 12 | Theodora J. Nissen | 60 | Wife | — | Denmark |
| 13 | Walter M. Nissen | 24 | Son | Car Man | Colorado |
| 14 | Edward Christenson | 30 | Head | Checker | Colorado |
| 15 | Sarah B. Christenson | 26 | Wife | — | Missouri |
| 16 | Glenn E. Christenson | 4 | Son | — | Colorado |
| 17 | Richard L. Christenson | 2 | Son | — | Colorado |
| 18 | Ruth B. Christenson | 0 | Daughter | — | Colorado |
| 19 | Elif Christenson | 70 | Father | — | Sweden |
| 20 | Ray Lenon | 46 | Head | Shovel Man | Illinois |
| 21 | Olga K. Lenon | 43 | Wife | — | Colorado |
| 22 | Howard C. Lenon | 8 | Son | — | Colorado |
| 23 | Evelyn M. Lenon | 6 | Daughter | — | Colorado |
| 24 | Marie E. Lenon | 2 | Daughter | — | Colorado |
| 25 | Harry M. Silcott | 48 | Head | Plasterer | Missouri |
| 26 | Elsie G. Silcott | 32 | Wife | — | Washington |
| 27 | Robert C. Keiser | 12 | Step-son | — | Colorado |
| 28 | Constance Gamble | 13 | Niece | — | Colorado |
| 29 | Howard P. Herbertson | 47 | Head | Truck Driver | Colorado |
| 30 | Ellen J. Herbertson | 43 | Wife | — | Colorado |
| 31 | Howard W. Herbertson | 19 | Son | Truck Driver | Colorado |
| 32 | Florence E. Herbertson | 16 | Daughter | — | Colorado |
| 33 | Noah Thompson | 41 | Head | Chain & Rodman | Ohio |
| 34 | Stella M. Thompson | 40 | Wife | — | Ohio |
| 35 | Charles A. Thompson | 18 | Son | Kitchen Duty | Ohio |
| 36 | Billie D. Thompson | 15 | Son | — | Ohio |
| 37 | Stewart H. Davisson | 53 | Head | Strong Man | North Ireland |
| 38 | Nellie O. Davisson | 49 | Wife | — | Missouri |
| 39 | Webster T. Davisson | 19 | Son | Shovel Man | Colorado |
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)