MS
Mary Spencer — 1940 US Census Record
Model Tree available1940 United States Federal Census · Wabash-County, Illinois
Our Model Tree links this Mary Spencer across the 1920, 1930 and 1940 US Censuses in Wabash-County, Illinois (XGBoost, ~Confirmed), with identified parents C & Elmer — first a daughter (b.~1908), then head of a 3-person household.
Age 32
b. ~1908
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Wabash-County, Illinois |
| Surname | Spencer |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 32 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Mt. Carmel |
| Additional Details | |
| Occupation | Clerk in Dress Shop |
| Industry | Retail |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 624 |
| Highest Grade | H 4 |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Clerk In Dress Shop |
| Township / Ward | Mt Carmel |
| Est. Birth Year | ~1908 |
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 Spencer | Daughter | — | 32 | ~1908 |
| C Spencer | Head | — | 60 | ~1880 |
| Lara Spencer | Spouse | — | 58 | ~1882 |
Census Appearances
1920
Wabash, Illinois
Daughter, age 11
Wabash, Illinois · implied b. ~1909 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Spencer |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| 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
Wabash, Illinois
Daughter, age 21
Wabash, Illinois · implied b. ~1909 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Spencer |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Saleslady |
| Industry | Dry Goods Store |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Wabash-County, Illinois
Daughter, age 32
Wabash-County, Illinois · implied b. ~1908 — 3 household members
| Surname | Spencer |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 32 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Mt. Carmel |
| Occupation | Clerk in Dress Shop |
| Industry | Retail |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 624 |
| Highest Grade | H 4 |
| 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 Spencer across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father C Spencer (~0.92 confidence) and father Elmer Spencer (~0.92 confidence) and mother Lona Spencer (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
C Spencer
b. ~1880
Source father
● Household
· direct · ~0.92
Father
Elmer Spencer
b. ~1880
Source father
● Household
· direct · ~0.92
Mother
Lona Spencer
b. ~1883
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Spencer
Daughter · 1940 · age 32 · b. ~1908 · Illinois
★ 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 — Wabash-County, Illinois
Open full size
1940 US Federal Census — Wabash-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00900-00212)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | W. R. Hays | 4 | Son | — | Illinois |
| 42 | Robert Hays | 2 | Son | — | Illinois |
| 43 | L. D. Lyman | 52 | Head | Confectionery | Pennsylvania |
| 44 | Irene S. Lyman | 48 | Wife | Field Salesman | Pennsylvania |
| 45 | Carl Rasmussen | 12 | Son | — | New York |
| 46 | Raymond Schultheis | 33 | Head | Clerk In Automobile | Illinois |
| 47 | Clara Schultheis | 31 | Wife | — | Illinois |
| 48 | Alice Cooper | 35 | Head | World War Veteran | Missouri |
| 49 | Louise Cooper | 13 | Daughter | — | Indiana |
| 50 | Betty Cooper | 12 | Daughter | — | Indiana |
| 51 | Marilyn Cooper | 7 | Daughter | — | Indiana |
| 52 | Mary Campbell | 70 | Mother | Old Age Pension | Indiana |
| 53 | C. R. Spencer | 60 | Head | — | Illinois |
| 54 | Lara B. Spencer | 58 | Wife | Cook In Restaurant | Illinois |
| 55 | Mary Spencer THIS PERSON | 32 | Daughter | Clerk In Dress Shop | Illinois |
| 56 | Hewitt Keahey | 29 | Head | Bookkeeper | Texas |
| 57 | Nita Keahey | 25 | Wife | — | Texas |
| 58 | Patricia Ann Keahey | 5 | Daughter | — | Texas |
| 59 | O. B. Underwood | 40 | Head | Guard Oil Field Work | W. Virginia |
| 60 | Thelma Underwood | 32 | Wife | — | Oklahoma |
| 61 | Roderick Richman | 67 | Head | President News Paper | England |
| 62 | Margaret W. Richman | 62 | Wife | Co-Owner News Paper | New York |
| 63 | Robert M. Richman | 28 | Son | Asst. Mngr. News Paper | Illinois |
| 64 | Gracie Lity | 73 | Head | — | Indiana |
| 65 | Elizabeth Lity | 28 | Daughter | Music Teacher | Indiana |
| 66 | — | None | — | — | — |
| 67 | Rosalie Keniepp | 66 | Head | — | Illinois |
| 68 | Ethel Keniepp | 59 | Sister | — | Illinois |
| 69 | Wm. J. G. Great House | 76 | Head | Caretaker - Residence | Illinois |
| 70 | Solomon B. Lubblefield | 64 | Head | — | Illinois |
| 71 | May Lubblefield | 64 | Wife | — | Mississippi |
| 72 | Lela Metzger | 63 | Daughter-in-law | Registered Nurse | Illinois |
| 73 | L. J. G. Clark | 25 | Lodger | Drilling & Production | Oklahoma |
| 74 | Muddie Clark | 25 | Lodger | Driller Prod. Oil Field | Oklahoma |
| 75 | Fred B. Lester | 35 | Head | Radio Worker In Factory | Ohio |
| 76 | Beulah Lester | 34 | Wife | School Teacher | Illinois |
| 77 | Charles Lester | 7 | Son | — | Illinois |
| 78 | Lyman Lity | 37 | Head | Yard Clerk N. Y. C. | Illinois |
| 79 | Elva Lity | 38 | Wife | — | Illinois |
| 80 | Irene Kimbrough | 23 | Daughter | Lunch Project W. P. A. | Indiana |
Pedigree Summary
Mary
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)