DJ
David Jones — 1940 US Census Record
Model Tree available1940 United States Federal Census · Marshall-County, South Dakota
Our Model Tree links this David Jones across the 1920, 1930 and 1940 US Censuses in Marshall-County, South Dakota (XGBoost, ~Confirmed), with identified parents Mary & David — first a head (b.~1892), then head of a 3-person household.
Age 48
b. ~1892
Male
Head
Born: Colorado
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Marshall-County, South Dakota |
| Surname | Jones |
| Given Name | David J |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Colorado |
| 1935 Residence (City) | Lowell township |
| 1935 Residence (County) | Marshall |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
| Occupation | Farmer |
| Township / Ward | Lowell Township |
| Est. Birth Year | ~1892 |
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 David | Age | Birth yr |
|---|---|---|---|---|
| Lorraine Jones | Daughter | — | 14 | ~1926 |
| David Jones | Head | — | 48 | ~1892 |
| Jennie Jones | Spouse | — | 43 | ~1897 |
Census Appearances
1920
Marshall, South …
Son, age 28
Marshall, South Dakota · implied b. ~1892 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jones |
| Given Name | David J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Wales |
| Mother's Birthplace | Wales |
| Occupation | Laborer |
| Industry | home farm |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Welsh |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1930
Marshall, South …
Head, age 38
Marshall, South Dakota · implied b. ~1892 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jones |
| Given Name | David J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Colorado |
| Age at First Marriage | 30 |
| Father's Birthplace | Wales |
| Mother's Birthplace | Wales |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | VVVV |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1940
Marshall-County, South …
Head, age 48
Marshall-County, South Dakota · implied b. ~1892 — 3 household members
| Surname | Jones |
| Given Name | David J |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Colorado |
| 1935 Residence (City) | Lowell township |
| 1935 Residence (County) | Marshall |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
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 David Jones across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Mary Jones (~0.92 confidence) and father David Jones (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Mary Jones
b. ~1860
Source mother
● Household
· direct · ~0.92
Father
David Jones
b. ~1861
Source father
● Household
· direct · ~0.92
This person
Anchor record
David Jones
Head · 1940 · age 48 · b. ~1892 · South Dakota
★ 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 — Marshall-County, South Dakota
Open full size
1940 US Federal Census — Marshall-County, South Dakota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03861-01013)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Alfred D Anderson | 56 | Head | Farmer | Wisconsin |
| 42 | Agnes A Anderson | 54 | Wife | — | Sweden |
| 43 | Harold E Anderson | 19 | Son | Farm | South Dakota |
| 44 | Doris G Anderson | 12 | Daughter | — | South Dakota |
| 45 | Edwin G Jones | 34 | Head | Farmer | South Dakota |
| 46 | Mary A Jones | 64 | Mother | — | Wisconsin |
| 47 | Buon Henry | 26 | Hire man | Farm Laborer | — |
| 48 | Frank Thayer | 50 | Hire man | Farm Laborer | South Dakota |
| 49 | Irene Wolf | 21 | Hire girl | Domestic Servant | South Dakota |
| 50 | Linus Olson | 51 | Head | Farmer | South Dakota |
| 51 | Mabel R Olson | 42 | Wife | — | South Dakota |
| 52 | Lenard Olson | 19 | Son | — | South Dakota |
| 53 | Madeline Olson | 18 | Daughter | Public School | South Dakota |
| 54 | Donald Olson | 16 | Son | — | South Dakota |
| 55 | Douglas Olson | 16 | Son | — | South Dakota |
| 56 | Mary Olson | 13 | Daughter | — | South Dakota |
| 57 | Robert H Jones | 64 | Head | Farmer | Wales |
| 58 | Bertha Jones | 70 | Wife | — | South Dakota |
| 59 | Edward D Peters | 41 | Head | Farmer | South Dakota |
| 60 | Emma A Peters | 35 | Wife | — | Nebraska |
| 61 | Emerald Peters | 11 | Son | — | South Dakota |
| 62 | Fred E Sayers | 51 | Head | Farmer | South Dakota |
| 63 | Mylle Sayers | 46 | Wife | — | South Dakota |
| 64 | Warren Sayers | 17 | Son | — | South Dakota |
| 65 | Virginia L Sayers | 13 | Daughter | — | South Dakota |
| 66 | William H Sayers | 12 | Son | — | South Dakota |
| 67 | James Sayers | 8 | Son | — | South Dakota |
| 68 | Oliver Lewis | 44 | Head | Farmer | South Dakota |
| 69 | Eunice Lewis | 44 | Wife | — | South Dakota |
| 70 | Windel Lewis | 17 | Son | Janitor | South Dakota |
| 71 | Robert J Lewis | 15 | Son | — | South Dakota |
| 72 | Marjorie Lewis | 14 | Daughter | — | South Dakota |
| 73 | Faith Lewis | 8 | Daughter | — | South Dakota |
| 74 | Earl Miller | 35 | Head | Farmer | South Dakota |
| 75 | Jessie Miller | 60 | Wife | — | Wisconsin |
| 76 | David J Jones THIS PERSON | 48 | Head | Farmer | Colorado |
| 77 | Jennie L Jones | 43 | Wife | — | South Dakota |
| 78 | Lorraine Jones | 14 | Daughter | — | South Dakota |
| 79 | Herb W Peters | 40 | Head | Farmer | South Dakota |
| 80 | Hazel E Peters | 38 | Wife | — | South Dakota |
Pedigree Summary
David
Gen 1 · 2 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)