MJ
Mary Jones — 1940 US Census Record
Model Tree available1940 United States Federal Census · Lancaster-County, South Carolina
Our Model Tree links this Mary Jones across the 1920, 1930 and 1940 US Censuses in Lancaster-County, South Carolina (XGBoost, ~Confirmed), with identified parents M & Ira — first a daughter (b.~1917), then head of a 6-person household.
Age 23
b. ~1917
Female
Daughter
Born: South Carolina
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Lancaster-County, South Carolina |
| Surname | Jones |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | South Carolina |
| 1935 Residence (City) | Lancaster Town |
| 1935 Residence (County) | Lancaster |
| Additional Details | |
| Occupation | Stenographer |
| Industry | Insurance Co. |
| Class of Worker | PW |
| Income (1939) | 236 |
| Highest Grade | C 5 |
| 1935 Residence | Same house |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
| Occupation | Stenographer |
| Township / Ward | Lancaster Town |
| 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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Jones | Daughter | — | 23 | ~1917 |
| Susan Jones | Daughter | — | 18 | ~1922 |
| Ira Jones | Head | — | 46 | ~1894 |
| Catherine Davenport | Other | — | 26 | ~1914 |
| Ira Jones | Son | — | 20 | ~1920 |
| Minnie Jones | Spouse | — | 42 | ~1898 |
Census Appearances
1920
Lancaster, South …
Daughter, age 3
Lancaster, South Carolina · implied b. ~1917 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jones |
| Given Name | Mary |
| 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 |
| Occupation | none |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
1930
Lancaster, South …
Daughter, age 13
Lancaster, South Carolina · implied b. ~1917 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jones |
| Given Name | Mary A. |
| 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
Lancaster-County, South …
Daughter, age 23
Lancaster-County, South Carolina · implied b. ~1917 — 6 household members
| Surname | Jones |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | South Carolina |
| 1935 Residence (City) | Lancaster Town |
| 1935 Residence (County) | Lancaster |
| Occupation | Stenographer |
| Industry | Insurance Co. |
| Class of Worker | PW |
| Income (1939) | 236 |
| Highest Grade | C 5 |
| 1935 Residence | Same house |
| 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 Jones across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father M Jones (~0.92 confidence) and father Ira Jones (~0.92 confidence) and father Ira Jones (~0.92 confidence) and mother Lucy Jones (~0.92 confidence) and mother Minnie Jones (~0.92 confidence) and mother Minnie Jones (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
M Jones
b. ~1894
Source father
● Household
· direct · ~0.92
Father
Ira Jones
b. ~1894
Source father
● Household
· direct · ~0.92
Father
Ira Jones
b. ~1894
Source father
● Household
· direct · ~0.92
Mother
Lucy Jones
b. ~1900
Source mother
● Household
· direct · ~0.92
Mother
Minnie Jones
b. ~1896
Source mother
● Household
· direct · ~0.92
Mother
Minnie Jones
b. ~1898
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Jones
Daughter · 1940 · age 23 · b. ~1917 · South Carolina
★ You are viewing this record
Sibling
Ira Jones
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Susan Jones
Sibling · 1940 · age 18
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 — Lancaster-County, South Carolina
Open full size
1940 US Federal Census — Lancaster-County, South Carolina
Page Contents
37 people indexed on this census page (nara:1940:m-t0627-03820-00373)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Vaneaton Price | 33 | Son-in-law | Agent | South Carolina |
| 2 | Thelma Price | 30 | Daughter | Bookkeeper | South Carolina |
| 3 | Percy G. Richards | 39 | Head | Employer | South Carolina |
| 4 | Mary B. Richards | 41 | Wife | — | South Carolina |
| 5 | Pauline Richards | 13 | Daughter | — | North Carolina |
| 6 | Phoebe Richards | 11 | Daughter | — | North Carolina |
| 7 | Marian Richards | 7 | Daughter | — | North Carolina |
| 8 | Fannie Johnson | 24 | Cook | Maid | South Carolina |
| 10 | Arthur P. Mcclure | 72 | Head | General Manager | South Carolina |
| 11 | Alice Mcclure | 73 | Wife | — | South Carolina |
| 12 | Katherine Mcclure | 60 | Sister-in-law | — | South Carolina |
| 13 | Minnie J. Carothers | 63 | Head | Teacher | South Carolina |
| 14 | Virginia Taylor | 42 | Sister | Employer | South Carolina |
| 15 | Thomas W. Williams | 73 | Head | — | South Carolina |
| 16 | Leila Williams | 71 | Wife | — | South Carolina |
| 17 | William S. Patterson | 56 | Head | Pastor | South Carolina |
| 18 | Mary Frances Patterson | 46 | Wife | — | South Carolina |
| 19 | William S. Jr. Patterson | 19 | Son | — | South Carolina |
| 20 | William L. Barr | 35 | Lodger | Meat Cutter | North Carolina |
| 22 | Leonard S. Hillane | 33 | Head | Proprietor | South Carolina |
| 23 | Alice B. Hillane | 33 | Wife | — | South Carolina |
| 24 | Joan Hillane | 8 | Daughter | — | South Carolina |
| 25 | Patricia Hillane | 5 | Daughter | — | South Carolina |
| 26 | Minnie Stillingham | 70 | Mother-in-law | Assistant Manager | South Carolina |
| 27 | Ira B. Jones | 46 | Head | Gen. Mgr. District | South Carolina |
| 28 | Minnie Jones | 42 | Wife | — | South Carolina |
| 29 | Mary Jones THIS PERSON | 23 | Daughter | Stenographer | South Carolina |
| 30 | Ira B. Iii Jones | 20 | Son | — | South Carolina |
| 31 | Susan Jones | 18 | Daughter | — | South Carolina |
| 32 | Catherine Davenport | 26 | Lodger | Teacher | South Carolina |
| 33 | Daniel M. Reaves | 31 | Head | Pastor | South Carolina |
| 34 | Carrie Reaves | 33 | Wife | — | South Carolina |
| 35 | Robert Reaves | 8 | Son | — | South Carolina |
| 36 | Melle Reaves | 7 | Daughter | — | South Carolina |
| 37 | Annie Stoll | 66 | Housekeeper | Housekeeper | South Carolina |
| 39 | Mary D. Witherspoon | 33 | Head | Agent | South Carolina |
| 40 | Marion Witherspoon | 26 | Brother | Section Man | South Carolina |
Pedigree Summary
Mary + 2 siblings
Gen 1 · 6 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)