MH
Mary Hammond — 1940 US Census Record
Model Tree available1940 United States Federal Census · Lee-County, Illinois
Our Model Tree links this Mary Hammond across the 1920, 1930 and 1940 US Censuses in Lee-County, Illinois (XGBoost, ~Confirmed), with identified parents Charles & Goel — first a daughter (b.~1911), then head of a 3-person household.
Age 29
b. ~1911
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Lee-County, Illinois |
| Surname | Hammond |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Wyoming Township |
| Additional Details | |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | C-1 |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Wyoming Township |
| Est. Birth Year | ~1911 |
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 |
|---|---|---|---|---|
| Mary Hammond | Daughter | — | 29 | ~1911 |
| Goel Hammond | Head | — | 60 | ~1880 |
| Chester Hammond | Son | — | 32 | ~1908 |
Census Appearances
1920
Lee, Illinois
Daughter, age 9
Lee, Illinois · implied b. ~1911 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hammond |
| Given Name | Mary L. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Lee, Illinois
Daughter, age 19
Lee, Illinois · implied b. ~1911 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hammond |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Lee-County, Illinois
Daughter, age 29
Lee-County, Illinois · implied b. ~1911 — 3 household members
| Surname | Hammond |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Wyoming Township |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | C-1 |
| 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 Hammond across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Charles Hammond (~0.92 confidence) and mother Goel Hammond (~0.92 confidence) and mother Rose Hammond (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Charles Hammond
b. ~1876
Source father
● Household
· direct · ~0.92
Mother
Goel Hammond
b. ~1880
Source mother
● Household
· direct · ~0.92
Mother
Rose Hammond
b. ~1881
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Hammond
Daughter · 1940 · age 29 · b. ~1911 · Illinois
★ You are viewing this record
Sibling
Chester Hammond
Sibling · 1940 · age 32
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 — Lee-County, Illinois
Open full size
1940 US Federal Census — Lee-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00836-00974)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Herbert Blatt | 35 | Head | Farming | Illinois |
| 2 | Frances Blatt | 35 | Wife | Farming | Illinois |
| 3 | Richard Blatt | 6 | Son | — | Illinois |
| 4 | Robert Blatt | 4 | Son | — | Illinois |
| 5 | Thomas Blatt | 2 | Son | — | Illinois |
| 6 | Otto Cruse | 25 | Hired Man | Laborer | Kentucky |
| 7 | Goel Hammond | 60 | Head | — | Illinois |
| 8 | Chester Hammond | 32 | Son | Farming | Illinois |
| 9 | Mary Hammond THIS PERSON | 29 | Daughter | — | Illinois |
| 10 | Henry Faber | 39 | Head | Farming | Illinois |
| 11 | Sarah Faber | 38 | Wife | — | Illinois |
| 12 | Helen Faber | 2 | Daughter | — | Illinois |
| 13 | Albert Carnahan | 70 | Father-in-law | — | Illinois |
| 14 | Mary Carnahan | 68 | Mother-in-law | — | Pennsylvania |
| 15 | Loyd Ray-Woods | 55 | Head | Farming | Illinois |
| 16 | Mary Ray-Woods | 50 | Wife | — | Illinois |
| 17 | Arthur Ray-Woods | 21 | Son | Electrician | Illinois |
| 18 | Billy Ray-Woods | 11 | Son | — | Illinois |
| 19 | Logan Ray-Woods | 8 | Grand-son | — | Ohio |
| 20 | John Politsch | 65 | Head | Farming | Illinois |
| 21 | Mary Politsch | 65 | Wife | — | Illinois |
| 22 | Wayne Neibergall | 48 | Head | Farming | Illinois |
| 23 | Marie Neibergall | 48 | Wife | — | Illinois |
| 24 | Guy Walters | 36 | Head | Farming | Illinois |
| 25 | Helen Walters | 34 | Wife | — | Illinois |
| 26 | Elmer Walters | 16 | Son | — | Illinois |
| 27 | Andrew Zuber | 57 | Head | Farming | Illinois |
| 28 | Bertha Zuber | 52 | Wife | — | Illinois |
| 29 | Howard Carrith | 40 | Head | Farming | Illinois |
| 30 | Josie Carrith | 68 | Mother | — | Illinois |
| 31 | Ellsworth Hood | 24 | Hired Man | Laborer | Illinois |
| 32 | Albert Taylor | 65 | Head | Farming | Pennsylvania |
| 33 | Anna Taylor | 63 | Wife | — | Pennsylvania |
| 34 | Earle Taylor | 39 | Son | Laborer | Pennsylvania |
| 35 | Fern Taylor | 32 | Daughter | — | Illinois |
| 36 | Albert Taylor | 29 | Son | Laborer | Illinois |
| 37 | Edward Phiefer | 25 | Head | Farming | Illinois |
| 38 | Henrietta Phiefer | 22 | Wife | — | Illinois |
| 39 | Marvin Phiefer | 5 | Son | — | Illinois |
| 40 | Wilbur Phiefer | 26 | Head | Farming | Illinois |
Pedigree Summary
Mary + 1 sibling
Gen 1 · 3 parents
~0.92
Max depth 4 (1900–1950 window)
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)