MR
Mary Ross — 1940 US Census Record
Model Tree available1940 United States Federal Census · Richland-County, South Carolina
Our Model Tree links this Mary Ross across the 1920, 1930 and 1940 US Censuses in Richland-County, South Carolina (XGBoost, ~Confirmed), with identified parents John & J — first a daughter (b.~1917), then head of a 7-person household.
Age 23
b. ~1917
Female
Daughter
Born: South Carolina
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Richland-County, South Carolina |
| Surname | Ross |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | South Carolina |
| 1935 Residence (City) | Columbia City |
| 1935 Residence (County) | Richland |
| Additional Details | |
| Occupation | Checker |
| Industry | Laundry |
| Class of Worker | PW |
| Hours Worked | 32 |
| Income (1939) | 448 |
| Highest Grade | H-1 |
| 1935 Residence | Same place |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
| Occupation | Checker |
| Township / Ward | Columbia City |
| Est. Birth Year | ~1917 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Sara Jones | Daughter | — | 21 | ~1919 |
| Betty Ross | Daughter | — | 15 | ~1925 |
| Mary Ross | Daughter | — | 23 | ~1917 |
| J Ross | Head | — | 57 | ~1883 |
| Julian Jones | Other | — | 23 | ~1917 |
| Charles Ross | Son | — | 12 | ~1928 |
| Maisie Ross | Spouse | — | 45 | ~1895 |
Census Appearances
1920
Richland, South …
Daughter, age 3
Richland, South Carolina · implied b. ~1917 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ross |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | South Carolina |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
1930
Richland, South …
Daughter, age 13
Richland, South Carolina · implied b. ~1917 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ross |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | South Carolina |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Can Read/Write | Yes |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
1940
Richland-County, South …
Daughter, age 23
Richland-County, South Carolina · implied b. ~1917 — 7 household members
| Surname | Ross |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | South Carolina |
| 1935 Residence (City) | Columbia City |
| 1935 Residence (County) | Richland |
| Occupation | Checker |
| Industry | Laundry |
| Class of Worker | PW |
| Hours Worked | 32 |
| Income (1939) | 448 |
| Highest Grade | H-1 |
| 1935 Residence | Same place |
| 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 Ross across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Ross (~0.92 confidence) and father J Ross (~0.92 confidence) and mother Mamie Ross (~0.92 confidence) and mother Maggie Ross (~0.92 confidence) and mother Maisie Ross (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Ross
b. ~1889
Source father
● Household
· direct · ~0.92
Father
J Ross
b. ~1883
Source father
● Household
· direct · ~0.92
Mother
Mamie Ross
b. ~1897
Source mother
● Household
· direct · ~0.92
Mother
Maggie Ross
b. ~1897
Source mother
● Household
· direct · ~0.92
Mother
Maisie Ross
b. ~1895
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Ross
Daughter · 1940 · age 23 · b. ~1917 · South Carolina
★ You are viewing this record
Sibling
Sara Jones
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Betty Ross
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Ross
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Richland-County, South Carolina
Open full size
1940 US Federal Census — Richland-County, South Carolina
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03832-00597)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | D. E. Dillard | 65 | Head | — | South Carolina |
| 42 | Martha Martin | 26 | Lodger | Porter | South Carolina |
| 43 | Elise Martin | 23 | Lodger | Proprietor | South Carolina |
| 44 | Fannie (X) Hudson | 25 | Nurse | — | South Carolina |
| 45 | James Garner | 2 | Nephew | — | South Carolina |
| 46 | James Northern | 39 | Head | Mechanic | South Carolina |
| 47 | Julia (X) Northern | 38 | Wife | — | South Carolina |
| 48 | James Jr. Northern | 18 | Son | — | South Carolina |
| 49 | Doris Northern | 16 | Daughter | — | South Carolina |
| 50 | Henrietta Hammond | 75 | Lodger | — | South Carolina |
| 51 | Lillian (X) Dominick | 25 | Head | Waitress | South Carolina |
| 52 | Barbara Dominick | 5 | Daughter | — | South Carolina |
| 53 | Clyde Hughes | 40 | Head | Mechanic | South Carolina |
| 54 | James Burkett | 22 | Head | Deliveryman | South Carolina |
| 55 | Agnes Mcpherson | 50 | Head | — | South Carolina |
| 56 | Arthur V. (X) Lee | 56 | Head | Foreman | North Carolina |
| 57 | Germania Lee | 53 | Wife | — | North Carolina |
| 58 | David Lee | 19 | Son | Printer Apprentice | South Carolina |
| 59 | Julia Lee | 17 | Daughter | — | North Carolina |
| 60 | Lala (X) Bloom | 48 | Head | Seamstress | North Carolina |
| 61 | Laura Bloom | 14 | Daughter | — | North Carolina |
| 62 | Joe Bloom | 13 | Son | — | North Carolina |
| 63 | Trula Harrelson | 32 | Sister | X-Ray Technician | North Carolina |
| 64 | J. Henry Ross | 57 | Head | Frame Spinner | South Carolina |
| 65 | Maisie (X) Ross | 45 | Wife | — | South Carolina |
| 66 | Mary Ross THIS PERSON | 23 | Daughter | Checker | South Carolina |
| 67 | Betty Ross | 15 | Daughter | — | South Carolina |
| 68 | Charles Ross | 12 | Son | — | South Carolina |
| 69 | Julian Jones | 23 | Son-in-Law | Mechanic | South Carolina |
| 70 | Sara Jones | 21 | Daughter | — | South Carolina |
| 71 | S. M. Hinson | 40 | Head | Carpenter | North Carolina |
| 72 | Mattie Hinson | 42 | Wife | — | South Carolina |
| 73 | Freddie Hinson | 16 | Son | — | South Carolina |
| 74 | Georgia Hinson | 13 | Daughter | — | South Carolina |
| 75 | Steve Hinson | 11 | Son | — | South Carolina |
| 76 | Leonard Hinson | 8 | Son | — | South Carolina |
| 77 | Earle Hair | 25 | Son-in-Law | Soda Jerker | South Carolina |
| 78 | Virginia Hair | 21 | Daughter | — | South Carolina |
| 79 | Harry Bishops | 23 | Nephew | Soda Jerker | South Carolina |
| 80 | Annie Easterling | 48 | Head | Binder | South Carolina |
Pedigree Summary
Mary + 3 siblings
Gen 1 · 5 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)