RJ
Ralph Jones — 1940 US Census Record
Model Tree available1940 United States Federal Census · Bay-County, Michigan
Our Model Tree links this Ralph Jones across the 1920, 1930 and 1940 US Censuses in Bay-County, Michigan (XGBoost, ~Confirmed), with identified parents Frank & Francis — first a head (b.~1913), then head of a 3-person household.
Age 27
b. ~1913
Male
Head
Born: Michigan
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Bay-County, Michigan |
| Surname | Jones |
| Given Name | Ralph E. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Michigan |
| 1935 Residence (City) | Bay City |
| 1935 Residence (County) | Bay |
| Additional Details | |
| Occupation | Inspector |
| Industry | Auto. Factory |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1200 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Occupation | Inspector |
| Township / Ward | Bay City |
| Est. Birth Year | ~1913 |
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 Ralph | Age | Birth yr |
|---|---|---|---|---|
| Rosalie Jones | Daughter | — | 2 | ~1938 |
| Ralph Jones | Head | — | 27 | ~1913 |
| Mildred Jones | Spouse | — | 28 | ~1912 |
Census Appearances
1920
Bay, Michigan
Son, age 7
Bay, Michigan · implied b. ~1913 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jones |
| Given Name | Ralph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Michigan |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1930
Bay, Michigan
Son, age 17
Bay, Michigan · implied b. ~1913 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jones |
| Given Name | Ralph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Michigan |
| Can Read/Write | Yes |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Bay-County, Michigan
Head, age 27
Bay-County, Michigan · implied b. ~1913 — 3 household members
| Surname | Jones |
| Given Name | Ralph E. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Michigan |
| 1935 Residence (City) | Bay City |
| 1935 Residence (County) | Bay |
| Occupation | Inspector |
| Industry | Auto. Factory |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1200 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
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 Ralph Jones across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Frank Jones (~0.92 confidence) and father Francis Jones (~0.92 confidence) and mother Eva Jones (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Frank Jones
b. ~1880
Source father
● Household
· direct · ~0.92
Father
Francis Jones
b. ~1881
Source father
● Household
· direct · ~0.92
Mother
Eva Jones
b. ~1893
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Ralph Jones
Head · 1940 · age 27 · b. ~1913 · Michigan
★ 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 — Bay-County, Michigan
Open full size
1940 US Federal Census — Bay-County, Michigan
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01728-00385)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Helen Dukay | 26 | Wife | — | Michigan |
| 2 | Janet Dukay | 1 | Daughter | — | Michigan |
| 3 | Stanley Szymkiewicz | 36 | Head | Core Maker | Michigan |
| 4 | Regina Szymkiewicz | 28 | Wife | Assembler | Michigan |
| 5 | Robert Szymkiewicz | 5 | Son | — | Michigan |
| 6 | Fremont Hartam | 29 | Head | Mail Carrier | Michigan |
| 7 | Crystal Hartam | 23 | Wife | — | Michigan |
| 8 | Judith Hartam | 1 | Daughter | — | Michigan |
| 9 | Ellen Ballard | 64 | Head | Chocolat Dipper | Massachusetts |
| 10 | John Moore | 22 | Head | Truck Driver | Michigan |
| 11 | Marguerite Moore | 20 | Wife | — | Michigan |
| 12 | Orton Rooker | 36 | Head | Plating | Michigan |
| 13 | Claire Rooker | 30 | Wife | — | Massachusetts |
| 14 | Donald Rooker | 5 | Son | — | Michigan |
| 15 | Theodore Malecki | 29 | Head | Shipping Clerk | Michigan |
| 16 | Helen Malecki | 24 | Wife | Mender | Michigan |
| 17 | Helen G. Malecki | 3 | Daughter | — | Michigan |
| 18 | Louise Walowinski | 48 | Head | Core Cleaner | Poland |
| 19 | Edmund Walowinski | 18 | Son | Woodworker | Michigan |
| 20 | Leonard Walowinski | 16 | Son | — | Michigan |
| 21 | Alvin Walowinski | 12 | Son | — | Michigan |
| 22 | John Rosinski | 35 | Head | Machine Operator | Michigan |
| 23 | Ada Rosinski | 32 | Wife | — | Michigan |
| 24 | Joseph Buczkiewicz | 46 | Head | Dipper | Poland |
| 25 | Antoinette Buczkiewicz | 45 | Wife | — | Michigan |
| 26 | Leo Buczkiewicz | 18 | Son | — | Michigan |
| 27 | Virginia Buczkiewicz | 16 | Daughter | — | Michigan |
| 28 | Alice Buczkiewicz | 14 | Daughter | — | Michigan |
| 29 | Richard Buczkiewicz | 12 | Son | — | Michigan |
| 30 | Evelyn Buczkiewicz | 7 | Daughter | — | Michigan |
| 31 | Florence Buczkiewicz | 4 | Daughter | — | Michigan |
| 32 | Clarence Dottleber | 28 | Head | Grocer | Michigan |
| 33 | Evelyn Dottleber | 27 | Wife | — | Michigan |
| 34 | Sandra Dottleber | 3 | Daughter | — | Michigan |
| 35 | Ralph E. Jones THIS PERSON | 27 | Head | Inspector | Michigan |
| 36 | Mildred Jones | 28 | Wife | Organist | Michigan |
| 37 | Rosalie Jones | 2 | Daughter | — | Michigan |
| 38 | Sylvester Stachowski | 31 | Head | Machine Operator | Michigan |
| 39 | Cecelia Stachowski | 22 | Wife | — | Michigan |
| 40 | Extra Line | None | — | — | — |
Pedigree Summary
Ralph
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)