MB
Mary Bradford — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Knox, Illinois
Our Model Tree links this Mary Bradford across the 1930 and 1940 US Censuses in Knox, Illinois (XGBoost, ~Confirmed) — first a daughter (b.~1918), then head of a 7-person household.
Age 12
b. ~1918
Female
Daughter
Born: Illinois
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Knox, Illinois |
| Surname | Bradford |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Illinois |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Galesburg City |
| Est. Birth Year | ~1918 |
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.
7 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Ambrose Bradford | Son | — | 15 | ~1915 |
| Mary Bradford | Daughter | — | 12 | ~1918 |
| William Bradford | Son | — | 9 | ~1921 |
| Lester Bradford | Head | — | 43 | ~1887 |
| Virginia Bradford | Daughter | — | 5 | ~1925 |
| Eugene Bradford | Son | — | 16 | ~1914 |
| Myrtle Bradford | Other | — | 39 | ~1891 |
Census Appearances
1930
Knox, Illinois
Daughter, age 12
Knox, Illinois · implied b. ~1918 — 7 household members
| Surname | Bradford |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Knox-County, Illinois
Spouse, age 23
Knox-County, Illinois · implied b. ~1917 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Bradford |
| Given Name | Marjorie |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Galesburg City |
| 1935 Residence (County) | Knox |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same Place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 Bradford across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Bradford
Daughter · 1930 · age 12 · b. ~1918 · Illinois
★ You are viewing this record
Sibling
Ambrose Bradford
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Virginia Bradford
Sibling · 1930 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eugene Bradford
Sibling · 1930 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Bradford
Sibling · 1930 · age 9
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
1930 US Federal Census — Knox, Illinois
Open full size
1930 US Federal Census — Knox, Illinois
Page Contents
50 people indexed on this census page (ia:1930:illinoiscensus00reel527:0524)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Mabel Pinkel | 46 | Head | Servant | Illinois |
| 52 | Adrian Pinkel | 17 | Son | Carpenter | Illinois |
| 53 | Matta Drago | 49 | Head | Retail Merchant | Yugoslavia |
| 54 | Trezia Drago | 45 | Wife-H | — | Yugoslavia |
| 55 | Jake Glamoreck | 23 | Son-in-law | Retail Merchant | Yugoslavia |
| 56 | Elizabeth Glamoreck | 19 | Daughter | — | Yugoslavia |
| 57 | Cecilia Glamoreck | 1 | Granddaughter | — | Illinois |
| 58 | Joseph Glamoreck | 0 | Grandson | — | Illinois |
| 59 | Richard Duval | 27 | Head | Pressman | Illinois |
| 60 | Ruby Duval | 28 | Wife-H | — | Illinois |
| 61 | Richard Jr Duval | 6 | Son | — | Illinois |
| 62 | Vernon Marston | 20 | Head | Millwright | Illinois |
| 63 | Ruth Marston | 21 | Wife-H | — | Ohio |
| 64 | Vernon Jr. Marston | 1 | Son | — | Illinois |
| 65 | Arthur Swanson | 35 | Head | Fireman | Illinois |
| 66 | Helen Swanson | 28 | Wife-H | — | Illinois |
| 67 | Lorraine Swanson | 9 | Daughter | — | Illinois |
| 68 | Eugene Swanson | 5 | Son | — | Illinois |
| 69 | Myrna Swanson | 2 | Daughter | — | Illinois |
| 70 | Joseph Johnson | 41 | Lodger | Auctioneer | Kansas |
| 71 | Frank Swanson | 27 | Brother | Pattern Maker | Illinois |
| 72 | John Somberger | 19 | Brother-in-law | Laborer | Illinois |
| 73 | Howard Somberger | 21 | Cousin | Laborer | Illinois |
| 74 | Charles Welch | 39 | Head | Assistant Foreman | Illinois |
| 75 | Nellie Welch | 34 | Wife-H | — | Illinois |
| 76 | Carrie Welch | 63 | Mother | Folder | Michigan |
| 77 | Irene Welch | 16 | Daughter | — | Illinois |
| 78 | John Welch | 8 | Son | — | Illinois |
| 79 | Lester Bradford | 43 | Head | Engineer | Iowa |
| 80 | Myrtle Bradford | 39 | Wife-H | — | Illinois |
| 81 | Eugene Bradford | 16 | Son | — | Illinois |
| 82 | Ambrose Bradford | 15 | Son | — | Illinois |
| 83 | Mary Bradford THIS PERSON | 12 | Daughter | — | Illinois |
| 84 | William Bradford | 9 | Son | — | Illinois |
| 85 | Virginia Bradford | 5 | Daughter | — | Illinois |
| 86 | Cecil Ashby | 22 | Head | Core Maker | Illinois |
| 87 | Fannie Ashby | 28 | Wife-H | — | Tennessee |
| 88 | Otha Oldham | 9 | Step Son | — | Tennessee |
| 89 | William Sandstrom | 41 | Head | Boiler Maker | Michigan |
| 90 | Carl Wrenberg | 35 | Partner | Brick Mason | Sweden |
| 91 | Walter Fackler | 50 | Head | Baker | Ohio |
| 92 | Lulu Fackler | 46 | Wife-H | Teacher | Illinois |
| 93 | Ford Fackler | 25 | Son | Electrician | Illinois |
| 94 | Bernard Fackler | 19 | Son | Stock Keeper | Illinois |
| 95 | Bonnie Fackler | 15 | Son | — | Illinois |
| 96 | Clair Cunningham | 33 | Head | Attendant | Illinois |
| 97 | Dorothy Cunningham | 20 | Wife-H | — | Illinois |
| 98 | Moses Lee | 46 | Father-in-law | Millwright | Illinois |
| 99 | Charles Ogden | 26 | Boarder | Trucker | Illinois |
| 100 | More Howard Mers | 36 | Head | Machinist | Illinois |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)