MB
Mary Bradley — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Dubuque-County, Iowa
Our Model Tree links this Mary Bradley across the 1920, 1930 and 1940 US Censuses in Dubuque-County, Iowa (XGBoost, ~Confirmed) — first a spouse (b.~1889), then head of a 3-person household.
Age 51
b. ~1889
Female
Spouse
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Dubuque-County, Iowa |
| Surname | Bradley |
| Given Name | Mary |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Table Mound Township |
| 1935 Residence (County) | Dubuque |
| Additional Details | |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Table Mound Township |
| Est. Birth Year | ~1889 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Fred Bradley | Head | — | 48 | ~1892 |
| Wilfred Bradley | Son | — | 21 | ~1919 |
| Mary Bradley | Spouse | — | 51 | ~1889 |
Census Appearances
1920
Dubuque, Iowa
Spouse, age 30
Dubuque, Iowa · implied b. ~1890 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Bradley |
| Given Name | May |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Scotland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Scotch |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Dubuque, Iowa
Other, age 41
Dubuque, Iowa · implied b. ~1889 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Bradley |
| Given Name | Mary |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 26 |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Scotland |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Dubuque-County, Iowa
Spouse, age 51
Dubuque-County, Iowa · implied b. ~1889 — 3 household members
| Surname | Bradley |
| Given Name | Mary |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Table Mound Township |
| 1935 Residence (County) | Dubuque |
| Highest Grade | No 7 |
| 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 Bradley across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Bradley
Spouse · 1940 · age 51 · b. ~1889 · Iowa
★ 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 — Dubuque-County, Iowa
Open full size
1940 US Federal Census — Dubuque-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01159-00638)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Joseph Kasson | 76 | uncle | — | Iowa |
| 2 | Mrs. Rena Kasson | 54 | aunt | — | Iowa |
| 3 | Nick O. Biechler | 51 | Head | Farmer | Iowa |
| 4 | Anna Biechler | 50 | wife | — | Iowa |
| 5 | Richard Magnall | 27 | son-in-law | Bricklayer | Illinois |
| 6 | Gladys Magnall | 27 | daughter | — | Iowa |
| 7 | Bertram Jochum | 44 | Head | Farmer | Iowa |
| 8 | Theresa Jochum | 45 | wife | — | Iowa |
| 9 | Gerald Jochum | 21 | son | Farmer | Iowa |
| 10 | Rosemary Jochum | 9 | daughter | — | Iowa |
| 11 | Susan Schmitt | 73 | mother-in-law | — | Iowa |
| 12 | Sylvester Jochum | 23 | Head | Farmer | Iowa |
| 13 | Alvina Jochum | 23 | wife | — | Iowa |
| 14 | Robert Jochum | 2 | son | — | Iowa |
| 15 | Doris Mae Jochum | 0 | daughter | — | Iowa |
| 16 | Joseph O. Mitchell | 35 | Head | Caretaker | Iowa |
| 17 | Alma Mitchell | 33 | wife | — | Iowa |
| 18 | Marilyn Mitchell | 8 | daughter | — | Iowa |
| 19 | Dorothy Mitchell | 6 | daughter | — | Iowa |
| 20 | Arlene Mitchell | 2 | daughter | — | Iowa |
| 21 | Charles Dwyer | 52 | lodger | Laborer | Iowa |
| 22 | Melvin O. Bradley | 46 | Head | Farmer | Iowa |
| 23 | Mary Bradley | 43 | wife | — | Iowa |
| 24 | Merlin Bradley | 16 | son | Farmer | Iowa |
| 25 | Richard Bradley | 1 | son | — | Iowa |
| 26 | Truman Bennett | 54 | hired hand | Hired Hand | Iowa |
| 27 | Fred O. Bradley | 48 | Head | Farmer | Iowa |
| 28 | Mary Bradley THIS PERSON | 51 | wife | — | Iowa |
| 29 | Wilfred Bradley | 21 | son | Farmer | Iowa |
| 30 | George Fitzpatrick | 56 | Head | — | Iowa |
| 31 | Francis Fitzpatrick | 69 | brother | Farmer | Iowa |
| 32 | Joseph Fitzpatrick | 13 | son | — | Iowa |
| 33 | Clara Hill | 23 | daughter | Housekeeper | Iowa |
| 34 | Nancy Lee Hill | 2 | granddaughter | — | Iowa |
| 35 | Jas O. Fitzpatrick | 28 | Head | Farmer | Iowa |
| 36 | Bernice Fitzpatrick | 23 | wife | — | Iowa |
| 37 | Emil O. Barth | 66 | Head | — | Iowa |
| 38 | Mary Barth | 56 | wife | — | Iowa |
| 39 | Alfred Barth | 17 | son | Helper | Iowa |
| 40 | Edna Barth | 15 | 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)