MS
Mary Summers — 1940 US Census Record
Model Tree available1940 United States Federal Census · Lexington-County, South Carolina
Our Model Tree links this Mary Summers across the 1920, 1930 and 1940 US Censuses in Lexington-County, South Carolina (XGBoost, ~Confirmed), with identified parents M & Mattie — first a spouse (b.~1912), then head of a 3-person household.
Age 28
b. ~1912
Female
Spouse
Born: South Carolina
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Lexington-County, South Carolina |
| Surname | Summers |
| Given Name | Mary Lou |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | South Carolina |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Lexington |
| Additional Details | |
| Highest Grade | H 2 |
| 1935 Residence | South Carolina |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
| Township / Ward | Chapin Town |
| Est. Birth Year | ~1912 |
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 Summers | Daughter | — | 6 | ~1934 |
| Charles Summers | Head | — | 34 | ~1906 |
| Mary Summers | Spouse | — | 28 | ~1912 |
Census Appearances
1920
Lexington, South …
Daughter, age 7
Lexington, South Carolina · implied b. ~1913 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Summers |
| Given Name | Mary I. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 7 |
| Marital Status | Single |
| Birthplace | South Carolina |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Speaks English | Yes |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
1930
Lexington, South …
Daughter, age 17
Lexington, South Carolina · implied b. ~1913 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Summers |
| Given Name | Margurite |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | South Carolina |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
1940
Lexington-County, South …
Spouse, age 28
Lexington-County, South Carolina · implied b. ~1912 — 3 household members
| Surname | Summers |
| Given Name | Mary Lou |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | South Carolina |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Lexington |
| Highest Grade | H 2 |
| 1935 Residence | South Carolina |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
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 Summers across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father M Summers (~0.92 confidence) and mother Mattie Summers (~0.92 confidence) and father Willie Summers (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
M Summers
b. ~1880
Source father
● Household
· direct · ~0.92
Mother
Mattie Summers
b. ~1882
Source mother
● Household
· direct · ~0.92
Father
Willie Summers
b. ~1884
Source father
● Household
· direct · ~0.92
This person
Anchor record
Mary Summers
Spouse · 1940 · age 28 · b. ~1912 · South Carolina
★ 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 — Lexington-County, South Carolina
Open full size
1940 US Federal Census — Lexington-County, South Carolina
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03823-00102)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | J. E. Hagan | 31 | Head | Teacher | South Carolina |
| 2 | Jennie Hagan | 31 | Wife | Teacher | South Carolina |
| 3 | Mattie Bruce | 60 | Head | Postmistress | South Carolina |
| 4 | Sara Bruce | 18 | Daughter | — | South Carolina |
| 5 | C. O. Cumalander | 32 | Head | Merchant | South Carolina |
| 6 | Lila Mae Cumalander | 28 | Wife | — | South Carolina |
| 7 | Gene Cumalander | 9 | Son | — | South Carolina |
| 8 | Douglas Cumalander | 5 | Son | — | South Carolina |
| 9 | Delores Cumalander | 2 | Daughter | — | South Carolina |
| 10 | J. M. Dillard | 35 | Head | Superintendent | South Car. |
| 11 | Irene Dillard | 38 | Wife | — | South Carolina |
| 12 | Nancy Dillard | 7 | Daughter | — | South Carolina |
| 13 | Ollie Summers | 41 | Head | Carpenter | South Carolina |
| 14 | Katie Summers | 36 | Wife | — | South Carolina |
| 15 | O'Brian Summers | 15 | Son | — | South Carolina |
| 16 | Barbara Summers | 8 | Daughter | — | South Carolina |
| 17 | Sybil Summers | 7 | Daughter | — | South Carolina |
| 18 | Bettie Summers | 4 | Daughter | — | South Carolina |
| 19 | Harriett Summers | 1 | Daughter | — | South Carolina |
| 20 | Addison R. Bostain | 57 | Head | Merchant | Georgia |
| 21 | Bertha Bostain | 48 | Wife | — | Tennessee |
| 22 | Addison Jr. Bostain | 26 | Son | Principal | Tennessee |
| 23 | Herbert Bostain | 15 | Son | Clerk | Alabama |
| 24 | Norman Bostain | 10 | Son | — | Tennessee |
| 25 | Leon Cumalander | 26 | Head | News Dealer | South Carolina |
| 26 | Sarah Cumalander | 24 | Wife | — | South Carolina |
| 27 | Shirley Cumalander | 5 | Daughter | — | South Carolina |
| 28 | Patsy Cumalander | 1 | Daughter | — | South Carolina |
| 29 | Hollie Cumalander | 59 | Father | — | South Carolina |
| 30 | Charles Summers | 34 | Head | Sawyer | South Carolina |
| 31 | Mary Lou Summers THIS PERSON | 28 | Wife | — | South Carolina |
| 32 | Mary E. Summers | 6 | Daughter | — | South Carolina |
| 33 | Albie Farr | 35 | Head | Teacher | South Carolina |
| 34 | Mary Bruce | 24 | Sister | — | South Carolina |
| 35 | Wendell Bruce | 23 | Brother | Attendant | South Carolina |
| 36 | Agnes Dreher | 61 | Head | — | South Carolina |
| 37 | A. H. Kessler | 33 | Head | Laborer | Georgia |
| 38 | Helen Kessler | 30 | Wife | — | South Carolina |
| 39 | Winnie Kessler | 9 | Daughter | — | South Carolina |
| 40 | Alvia Jr. Kessler | 7 | Son | — | South Carolina |
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)