MJ
Marion Jones — 1940 US Census Record
Model Tree available1940 United States Federal Census · Butte-County, California
Our Model Tree links this Marion Jones across the 1920, 1930 and 1940 US Censuses in Butte-County, California (XGBoost, ~Confirmed), with identified parents John & Henry — first a head (b.~1909), then head of a 5-person household.
Age 31
b. ~1909
Male
Head
Born: California
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Butte-County, California |
| Surname | Jones |
| Given Name | Marion C. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | California |
| 1935 Residence (City) | Gridley |
| 1935 Residence (County) | Butte |
| Additional Details | |
| Occupation | clerk |
| Industry | confectionery |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1200 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Occupation | Clerk |
| Township / Ward | Gridley |
| Est. Birth Year | ~1909 |
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 Marion | Age | Birth yr |
|---|---|---|---|---|
| Marilyn Jones | Daughter | — | 3 | ~1937 |
| Sandra Jones | Daughter | — | 1 | ~1939 |
| Marion Jones | Head | — | 31 | ~1909 |
| Jimmie James | Other | — | 9 | ~1931 |
| Alice Jones | Spouse | — | 33 | ~1907 |
Census Appearances
1920
Butte, California
Son, age 10
Butte, California · implied b. ~1910 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jones |
| Given Name | Marion |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Indiana |
| Mother's Birthplace | California |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1930
Butte, California
Son, age 21
Butte, California · implied b. ~1909 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jones |
| Given Name | Marion G. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Indiana |
| Mother's Birthplace | California |
| Occupation | Clerk |
| Industry | Sugar Store |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | No |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
Butte-County, California
Head, age 31
Butte-County, California · implied b. ~1909 — 5 household members
| Surname | Jones |
| Given Name | Marion C. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | California |
| 1935 Residence (City) | Gridley |
| 1935 Residence (County) | Butte |
| Occupation | clerk |
| Industry | confectionery |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1200 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
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 Marion Jones across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Jones (~0.92 confidence) and father Henry Jones (~0.92 confidence) and mother Nellie Jones (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Jones
b. ~1868
Source father
● Household
· direct · ~0.92
Father
Henry Jones
b. ~1870
Source father
● Household
· direct · ~0.92
Mother
Nellie Jones
b. ~1884
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Marion Jones
Head · 1940 · age 31 · b. ~1909 · California
★ 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 — Butte-County, California
Open full size
1940 US Federal Census — Butte-County, California
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00193-00056)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | John Perkins | 20 | Son | Laborer | California |
| 42 | Marion C. Jones THIS PERSON | 31 | Head | Clerk | California |
| 43 | Alice D. Jones | 33 | Wife | Laborer | California |
| 44 | Marilyn Jones | 3 | Daughter | — | California |
| 45 | Sandra Jones | 1 | Daughter | — | California |
| 46 | Jimmie James | 9 | Step-son | — | California |
| 47 | Joe Benedict | 48 | Head | Laborer | Cyprus |
| 48 | Mary Benedict | 47 | Wife | — | California |
| 49 | Robert Benedict | 23 | Son | Bookkeeper | California |
| 50 | Loren Benedict | 22 | Son | Trucker | California |
| 51 | End Of Block 27 And 61 Begins | None | — | — | — |
| 52 | Charles W. Miller | 67 | Head | Agent | Illinois |
| 53 | Carolyn Miller | 67 | Wife | — | California |
| 54 | Frank B. Clark | 66 | Head | Broker | Iowa |
| 55 | Mary J. Clark | 59 | Wife | — | Nebraska |
| 56 | End Of Block 61 And 68 Begins | None | — | — | — |
| 57 | Catherine King | 65 | Head | — | Ireland |
| 58 | Frances King | 24 | Daughter | Clerk | California |
| 59 | Beulah Ellis | 17 | Lodger | — | California |
| 60 | End Of Block 68 And 67 Begins | None | — | — | — |
| 61 | Jesse Machado | 67 | Head | — | Portugal |
| 62 | Lena Machado | 60 | Wife | — | Portugal |
| 63 | John Machado | 27 | Son | Laborer | California |
| 64 | Albert Machado | 36 | Head | Laborer | Brazil |
| 65 | Genevieve Machado | 31 | Wife | — | California |
| 66 | George Machado | 8 | Son | — | California |
| 67 | Douglas Machado | 6 | Son | — | California |
| 68 | Lonita Machado | 0 | Daughter | — | California |
| 69 | End Of Block 67 And 62 Begins | None | — | — | — |
| 70 | Victor Machado | 39 | Head | Laborer | Brazil |
| 71 | Josephine Machado | 36 | Wife | — | Oklahoma |
| 72 | Robert Machado | 2 | Nephew | — | California |
| 73 | Ruby Brown | 17 | Step-daughter | Housework | California |
| 74 | Phelan Brown | 13 | Step-daughter | — | California |
| 75 | Arley Miller | 40 | Head | Clerk | California |
| 76 | Ruth Miller | 40 | Wife | — | California |
| 77 | Elizabeth Rogers | 50 | Head | Bookkeeper | California |
| 78 | John Finning | 71 | Head | — | Connecticut |
| 79 | End Of Block 62 And 63 Begins | None | — | — | — |
| 80 | Donald Bell | 30 | Head | Laborer | Kansas |
Pedigree Summary
Marion
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)