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John Mcelroy — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Madison-County, Georgia
Our Model Tree links this John Mcelroy across the 1930 and 1940 US Censuses in Madison-County, Georgia (XGBoost, ~Confirmed) — first a head (b.~1889), then head of a 17-person household.
Age 51
b. ~1889
Male
Head
Born: Georgia
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Madison-County, Georgia |
| Surname | McElroy |
| Given Name | John R. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Georgia |
| 1935 Residence (City) | G. M. D. 382 Grove Hill |
| 1935 Residence (County) | Madison |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 48 |
| Highest Grade | No 4 |
| 1935 Residence | Same House |
| Birth State | Georgia |
| Birth Country | United States |
| Birthplace (normalized) | georgia |
| Occupation | Farmer |
| Township / Ward | G M D 382 Grove Hill |
| Est. Birth Year | ~1889 |
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.
17 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Loran Mcelroy | Son | — | 7 | ~1933 |
| Frances Mcelroy | Daughter | — | 4 | ~1936 |
| Willie Griffith | Son | — | 15 | ~1925 |
| Bertha Griffith | Daughter | — | 13 | ~1927 |
| Cornelia Mcelroy | Daughter | — | 17 | ~1923 |
| Janet Davis | Other | — | 1 | ~1939 |
| Lona Griffith | Daughter | — | 31 | ~1909 |
| Buster Davis | Other | — | 23 | ~1917 |
| Frances Colbert | Spouse | — | 65 | ~1875 |
| Rufus Mcelroy | Son | — | 10 | ~1930 |
| Gloria Mcelroy | Daughter | — | 7 | ~1933 |
| Sam Mcelroy | Son | — | 15 | ~1925 |
| Cathrine Davis | Daughter | — | 19 | ~1921 |
| Ellie Mcelroy | Spouse | — | 44 | ~1896 |
| Rosa Mcelroy | Daughter | — | 21 | ~1919 |
| John Mcelroy | Head | — | 51 | ~1889 |
| Ruth Mcelroy | Daughter | — | 10 | ~1930 |
Census Appearances
1930
Madison, Georgia
Head, age 41
Madison, Georgia · implied b. ~1889 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McElroy |
| Given Name | John R |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Georgia |
| Age at First Marriage | 21 |
| Father's Birthplace | Georgia |
| Mother's Birthplace | Georgia |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | VVVV |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 2.42 |
| Veteran | No |
| Birth State | Georgia |
| Birth Country | United States |
| Birthplace (normalized) | georgia |
1940
Madison-County, Georgia
Head, age 51
Madison-County, Georgia · implied b. ~1889 — 17 household members
| Surname | McElroy |
| Given Name | John R. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Georgia |
| 1935 Residence (City) | G. M. D. 382 Grove Hill |
| 1935 Residence (County) | Madison |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 48 |
| Highest Grade | No 4 |
| 1935 Residence | Same House |
| Birth State | Georgia |
| Birth Country | United States |
| Birthplace (normalized) | georgia |
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 John Mcelroy across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Mcelroy
Head · 1940 · age 51 · b. ~1889 · Georgia
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Madison-County, Georgia
Open full size
1940 US Federal Census — Madison-County, Georgia
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00693-00218)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Louise Griffeth | 28 | Wife | — | Georgia |
| 2 | Lucile Griffeth | 6 | Daughter | — | Georgia |
| 3 | Juanita Griffeth | 4 | Daughter | — | Georgia |
| 4 | Clinton Griffeth | 2 | Son | — | Georgia |
| 5 | Cliff Willie Griffeth | 18 | Son in law | Farmer | Georgia |
| 6 | Thomas J. Mcelroy | 25 | Head | Truck Driver | Georgia |
| 7 | Jennie D. Mcelroy | 21 | Wife | — | Georgia |
| 8 | Douglas Mcelroy | 2 | Son | — | Georgia |
| 9 | John R. Mcelroy THIS PERSON | 51 | Head | Farmer | Georgia |
| 10 | Ellie Mcelroy | 44 | Wife | — | Georgia |
| 11 | Rosa L. Mcelroy | 21 | Daughter | — | Georgia |
| 12 | Cornelia Mcelroy | 17 | Daughter | — | Georgia |
| 13 | Sam Mcelroy | 15 | Son | — | Georgia |
| 14 | Ruth Mcelroy | 10 | Daughter | — | Georgia |
| 15 | Rufus Mcelroy | 10 | Son | — | Georgia |
| 16 | Gloria Mcelroy | 7 | Daughter | — | Georgia |
| 17 | Loran Mcelroy | 7 | Son | — | Georgia |
| 18 | Frances Mcelroy | 4 | Daughter | — | Georgia |
| 19 | Buster B. Davis | 23 | Son in law | Farmer | Georgia |
| 20 | Cathrine Davis | 19 | Daughter | — | Georgia |
| 21 | Janet Davis | 1 | Grand daughter | — | Georgia |
| 22 | Frances Colbert | 65 | Wife | Farmer | Georgia |
| 23 | Lona Griffith | 31 | Daughter | — | Georgia |
| 24 | Willie Griffith | 15 | Son | — | Georgia |
| 25 | Bertha Griffith | 13 | Daughter | — | Georgia |
| 26 | Alphen Thompson | 34 | Head | Laborer | Georgia |
| 27 | Huldia Thompson | 30 | Wife | — | Georgia |
| 28 | Reba Thompson | 15 | Daughter | — | Georgia |
| 29 | Herman Thompson | 13 | Son | — | Georgia |
| 30 | Ruby M. Thompson | 10 | Daughter | — | Georgia |
| 31 | Ella R. Thompson | 8 | Daughter | — | Georgia |
| 32 | A. B. Jr. Thompson | 5 | Son | — | Georgia |
| 33 | James L. Thompson | 3 | Son | — | Georgia |
| 34 | Homer D. Johnson | 48 | Head | Farmer | Georgia |
| 35 | Cassie Johnson | 46 | Wife | — | Georgia |
| 36 | Odell Johnson | 22 | Son | Farmer | Georgia |
| 37 | Hattie M. Johnson | 20 | Daughter | — | Georgia |
| 38 | Ed. Johnson | 18 | Son | Farmer | Georgia |
| 39 | Mary Johnson | 16 | Daughter | — | Georgia |
| 40 | Lucy Johnson | 14 | Daughter | — | Georgia |
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)