MB
Mary Bond — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Jefferson-County, Illinois
Our Model Tree links this Mary Bond across the 1930 and 1940 US Censuses in Jefferson-County, Illinois (XGBoost, ~Confirmed) — first a daughter (b.~1926), then head of a 8-person household.
Age 14
b. ~1926
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Jefferson-County, Illinois |
| Surname | Bond |
| Given Name | Mary Lou |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Rome Township |
| 1935 Residence (County) | Jefferson |
| Additional Details | |
| Highest Grade | Hs 1 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Rome Township |
| Est. Birth Year | ~1926 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Harry Bond | Son | — | 4 | ~1936 |
| Rena Bond | Daughter | — | 11 | ~1929 |
| Mary Bond | Daughter | — | 14 | ~1926 |
| Arlea Bond | Spouse | — | 37 | ~1903 |
| Rosma Bond | Daughter | — | 7 | ~1933 |
| Eddie Bond | Son | — | 5 | ~1935 |
| Lester Bond | Head | — | 38 | ~1902 |
| James Bond | Son | — | 16 | ~1924 |
Census Appearances
1930
Jefferson, Illinois
Daughter, age 4
Jefferson, Illinois · implied b. ~1926 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Band |
| Given Name | Mary Lou |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Jefferson-County, Illinois
Daughter, age 14
Jefferson-County, Illinois · implied b. ~1926 — 8 household members
| Surname | Bond |
| Given Name | Mary Lou |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Rome Township |
| 1935 Residence (County) | Jefferson |
| Highest Grade | Hs 1 |
| 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 Bond across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Bond
Daughter · 1940 · age 14 · b. ~1926 · Illinois
★ You are viewing this record
Sibling
Eddie Bond
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Bond
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rena Bond
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harry Bond
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rosma Bond
Sibling · 1940 · age 7
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 — Jefferson-County, Illinois
Open full size
1940 US Federal Census — Jefferson-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00816-00854)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Bob Mccarry | 20 | Son | Farmer | Illinois |
| 2 | Joan Mccarry | 16 | Daughter | — | Illinois |
| 3 | A. T. Mccarry | 4 | Son | — | Illinois |
| 4 | W. R. Creel | 51 | Head | Laborer | Illinois |
| 5 | J. B. Ward | 76 | Head | Farmer | Illinois |
| 6 | Hettie Ward | 68 | Wife | — | Illinois |
| 7 | Floyd Brennan | 40 | Son-in-law | Nurse | New York |
| 8 | Carrie Brennan | 30 | Daughter | — | Illinois |
| 9 | Robert Brennan | 4 | Grandson | — | Illinois |
| 10 | Laurence Dobbs | 73 | Head | Watchman | Illinois |
| 11 | Cora Dobbs | 43 | Wife | — | Illinois |
| 12 | John Dobbs | 8 | Son | — | Illinois |
| 13 | Harvey Burns | 54 | Head | Farmer | Illinois |
| 14 | Alice Burns | 51 | Wife | — | Illinois |
| 15 | Lucille Burns | 16 | Daughter | — | Illinois |
| 16 | Bion Burns | 14 | Son | — | Illinois |
| 17 | Evalen May Burns | 9 | Daughter | — | Illinois |
| 18 | Arden Lee Burns | 9 | Daughter | — | Illinois |
| 19 | Troy Bruce | 37 | Head | Farmer | Illinois |
| 20 | Ersla Bruce | 34 | Wife | — | Illinois |
| 21 | Henry J. Hoffman | 66 | Head | Carpenter | Indiana |
| 22 | Lillian Hoffman | 32 | Daughter | Librarian | Illinois |
| 23 | Orvill Telford | 35 | Head | Teamster | Illinois |
| 24 | Maren Telford | 38 | Wife | — | Illinois |
| 25 | Vern Bogg | 47 | Head | Farmer | Kansas |
| 26 | Angeline Bogg | 41 | Wife | — | Illinois |
| 27 | E. G. Maxey | 69 | Head | Farmer | Illinois |
| 28 | Ruby Maxey | 45 | Daughter | — | Illinois |
| 29 | Bertie Maxey | 51 | Head | — | Illinois |
| 30 | Bill Mcclure | 51 | Brother | Farmer | Indiana |
| 31 | Lester Bond | 38 | Head | Farmer | Illinois |
| 32 | Arlea Bond | 37 | Wife | — | Illinois |
| 33 | James Bond | 16 | Son | — | Illinois |
| 34 | Mary Lou Bond THIS PERSON | 14 | Daughter | — | Illinois |
| 35 | Rena Janie Bond | 11 | Daughter | — | Illinois |
| 36 | Rosma Gene Bond | 7 | Daughter | — | Illinois |
| 37 | Eddie Lee Bond | 5 | Son | — | Illinois |
| 38 | Harry Dwight Bond | 4 | Son | — | Illinois |
| 39 | Dwight Lennon | 46 | Head | Laborer | Illinois |
| 40 | Neville Lennon | 44 | Wife | — | Illinois |
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)