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Mary Mcelroy — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Sumter-County, Alabama
Our Model Tree links this Mary Mcelroy across the 1920, 1930 and 1940 US Censuses in Sumter-County, Alabama (XGBoost, ~Confirmed) — first a spouse (b.~1872), then head of a 6-person household.
Age 68
b. ~1872
Female
Spouse
Born: Alabama
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Sumter-County, Alabama |
| Surname | McElroy |
| Given Name | Mary A. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 68 |
| Marital Status | Married |
| Birthplace | Alabama |
| 1935 Residence (City) | Cuba Town |
| 1935 Residence (County) | Sumter |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
| Township / Ward | Cuba Town |
| Est. Birth Year | ~1872 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Dorothy Mcelroy | Other | — | 11 | ~1929 |
| Edmon Mcelroy | Head | — | 68 | ~1872 |
| Harold Mcelroy | Other | — | 7 | ~1933 |
| Myrtle Mcelroy | Other | — | 25 | ~1915 |
| Harold Mcelroy | Son | — | 31 | ~1909 |
| Mary Mcelroy | Spouse | — | 68 | ~1872 |
Census Appearances
1920
Sumter, Alabama
Spouse, age 48
Sumter, Alabama · implied b. ~1872 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McElroy |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Alabama |
| Father's Birthplace | Georgia |
| Mother's Birthplace | Georgia |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1930
Sumter, Alabama
Spouse, age 58
Sumter, Alabama · implied b. ~1872 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McElroy |
| Given Name | Mary L |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 58 |
| Marital Status | Married |
| Birthplace | Alabama |
| Age at First Marriage | 22 |
| Father's Birthplace | North Carolina |
| Mother's Birthplace | Alabama |
| Can Read/Write | Yes |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1940
Sumter-County, Alabama
Spouse, age 68
Sumter-County, Alabama · implied b. ~1872 — 6 household members
| Surname | McElroy |
| Given Name | Mary A. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 68 |
| Marital Status | Married |
| Birthplace | Alabama |
| 1935 Residence (City) | Cuba Town |
| 1935 Residence (County) | Sumter |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
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 Mcelroy across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Mcelroy
Spouse · 1940 · age 68 · b. ~1872 · Alabama
★ 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 — Sumter-County, Alabama
Open full size
1940 US Federal Census — Sumter-County, Alabama
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00080-00679)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Marshall Hitt | 54 | Head | Laborer | Alabama |
| 2 | Mary E. Hitt | 44 | Wife | — | Alabama |
| 3 | William H. Stephens | 82 | Head | Farmer | Mississippi |
| 4 | Eliza J. Stephens | 77 | Wife | — | Alabama |
| 5 | R. E. Trulove | 30 | Head | Truck Driver | Alabama |
| 6 | Gladys L. Trulove | 27 | Wife | — | Alabama |
| 7 | Mary E. Trulove | 7 | Daughter | — | Alabama |
| 8 | Bobby J. Trulove | 4 | Son | — | Alabama |
| 9 | Robert L. Stephens | 49 | Head | Foreman | Alabama |
| 10 | Allie H. Stephens | 48 | Wife | — | Alabama |
| 11 | Ava G. Stephens | 20 | Daughter | — | Alabama |
| 12 | Eunice F. Stephens | 18 | Daughter | — | Alabama |
| 13 | Melvin G. Stephens | 13 | Son | — | Alabama |
| 14 | Evie J. Stephens | 10 | Daughter | — | Alabama |
| 15 | Elsie J. Stephens | 5 | Daughter | — | Alabama |
| 16 | Edmon A. Mcelroy | 68 | Head | Farmer Manager | Alabama |
| 17 | Mary A. Mcelroy THIS PERSON | 68 | Wife | — | Alabama |
| 18 | Harold D. Mcelroy | 31 | Son | Truck Driver | Alabama |
| 19 | Myrtle M. Mcelroy | 25 | Daughter-in-law | — | Mississippi |
| 20 | Dorothy M. Mcelroy | 11 | Granddaughter | — | Alabama |
| 21 | Harold D. Mcelroy | 7 | Grandson | — | Mississippi |
| 22 | Henrietta Silmon | 37 | Head | Cook | Mississippi |
| 23 | Frank J. Silmon | 6 | Son | — | Mississippi |
| 24 | J. C. Rush | 17 | Son | Farm Laborer | Mississippi |
| 25 | Susan M. Rush | 15 | Daughter | — | Mississippi |
| 26 | James Rush | 12 | Son | — | Mississippi |
| 27 | D. C. Rush | 8 | Son | — | Mississippi |
| 28 | Emmaline Jones | 58 | Mother | — | Mississippi |
| 29 | Willie C. Jones | 27 | Brother | Laborer | Mississippi |
| 30 | Mary L. Jones | 20 | Sister | — | Mississippi |
| 31 | Lillie M. Jones | 16 | Sister | — | Mississippi |
| 32 | Bertha R. Jones | 12 | Sister | — | Mississippi |
| 33 | Robert J. Nelson | 12 | Nephew | — | Alabama |
| 34 | Sallie M. Larkin | 12 | Niece | — | Alabama |
| 35 | Alfred S. Van Hoose | 64 | Head | Farmer | Alabama |
| 36 | Flora M. Van Hoose | 54 | Wife | Teacher | Alabama |
| 37 | Alfred S. Van Hoose | 19 | Son | Road Maintenance | Alabama |
| 38 | James Van Hoose | 17 | Son | Salesman | Alabama |
| 39 | Paul Powell | 65 | Head | — | Alabama |
| 40 | Annie Powell | 45 | Wife | — | Alabama |
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)