MC
Mary Chapman — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Union-County, Louisiana
Our Model Tree links this Mary Chapman across the 1920, 1930 and 1940 US Censuses in Union-County, Louisiana (XGBoost, ~Confirmed) — first a spouse (b.~1888), then head of a 5-person household.
Age 52
b. ~1888
Female
Spouse
Born: Louisiana
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Union-County, Louisiana |
| Surname | Chapman |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Louisiana |
| 1935 Residence (City) | Ward 7 |
| 1935 Residence (County) | Union |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | Hs 5 |
| 1935 Residence | Same place |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
| Township / Ward | Ward 7 |
| Est. Birth Year | ~1888 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Alma Chapman | Daughter | — | 20 | ~1920 |
| Letha Chapman | Daughter | — | 17 | ~1923 |
| W Chapman | Head | — | 71 | ~1869 |
| Joy Chapman | Son | — | 22 | ~1918 |
| Mary Chapman | Spouse | — | 52 | ~1888 |
Census Appearances
1920
Union, Louisiana
Spouse, age 31
Union, Louisiana · implied b. ~1889 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Chapman |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Louisiana |
| Father's Birthplace | Louisiana |
| Mother's Birthplace | Louisiana |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
1930
Union, Louisiana
Spouse, age 40
Union, Louisiana · implied b. ~1890 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Chapman |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Louisiana |
| Age at First Marriage | 17 |
| Father's Birthplace | Louisiana |
| Mother's Birthplace | Louisiana |
| Can Read/Write | Yes |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
1940
Union-County, Louisiana
Spouse, age 52
Union-County, Louisiana · implied b. ~1888 — 5 household members
| Surname | Chapman |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Louisiana |
| 1935 Residence (City) | Ward 7 |
| 1935 Residence (County) | Union |
| Income (1939) | 0 |
| Highest Grade | Hs 5 |
| 1935 Residence | Same place |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
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 Chapman across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Chapman
Spouse · 1940 · age 52 · b. ~1888 · Louisiana
★ 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 — Union-County, Louisiana
Open full size
1940 US Federal Census — Union-County, Louisiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01460-00467)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Alvin Sawyer | 17 | Son | Labor | Louisiana |
| 2 | Frank Wheeler | 86 | Lodger | — | Arkansas |
| 3 | Eva Armstrong | 32 | Head | Farmer | Louisiana |
| 4 | Ola Armstrong | 29 | Wife | — | Louisiana |
| 5 | Ezra Jr Armstrong | 7 | Son | — | Louisiana |
| 6 | Ray Armstrong | 3 | Son | — | Louisiana |
| 7 | Buna Sawyer | 24 | Head | Labor | Louisiana |
| 8 | Myrcil Sawyer | 18 | Wife | — | Louisiana |
| 9 | Charles Dean | 64 | Head | Farmer | Louisiana |
| 10 | Hattie Dean | 54 | Wife | — | Louisiana |
| 11 | Cathilene Dean | 18 | Daughter | Helper | Louisiana |
| 12 | Sonny Dean | 15 | Son | Student | Louisiana |
| 13 | Eltham Dodd | 34 | Head | — | Louisiana |
| 14 | Celia Dodd | 32 | Wife | — | Louisiana |
| 15 | Norman Dodd | 13 | Son | — | Louisiana |
| 16 | Elva Dodd | 2 | Daughter | — | Louisiana |
| 17 | George Dodd | 40 | Brother | Labor | Louisiana |
| 18 | C B Bryant | 62 | Head | Farmer | Louisiana |
| 19 | Ouida Bryant | 27 | Daughter | — | Louisiana |
| 20 | Lizzie Guerry | 25 | Daughter | Helper | Louisiana |
| 21 | Clara Guerry | 20 | Daughter | Helper | Louisiana |
| 22 | Clestia Markham | 19 | Niece | Helper | Louisiana |
| 23 | Carlin Markham | 17 | Niece | Helper | Louisiana |
| 24 | Johnny Markham | 14 | Nephew | Student | Louisiana |
| 25 | Sam Bryant | 35 | Head | Farmer | Louisiana |
| 26 | Georgia Bryant | 35 | Wife | — | Louisiana |
| 27 | Milam Howard | 30 | Cousin | — | Louisiana |
| 28 | Alex Bryant | 39 | Head | Contractor | Louisiana |
| 29 | Jeanie Bryant | 39 | Wife | — | Louisiana |
| 30 | W A Chapman | 71 | Head | Farmer | Louisiana |
| 31 | Mary Chapman THIS PERSON | 52 | Wife | — | Louisiana |
| 32 | Joy Chapman | 22 | Son | Labor | Louisiana |
| 33 | Alma Chapman | 20 | Daughter | Home Ec | Louisiana |
| 34 | Letha Chapman | 17 | Daughter | Student | Louisiana |
| 35 | Embry Chapman | 31 | Head | Labor | Louisiana |
| 36 | Nettie Chapman | 31 | Wife | — | Louisiana |
| 37 | William Chapman | 7 | Son | — | Louisiana |
| 38 | Marley Chapman | 5 | Son | — | Louisiana |
| 39 | Ray Chapman | 3 | Son | — | Louisiana |
| 40 | Dayline Chapman | 2 | Daughter | — | Louisiana |
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)