CJ
Clarence Jones — 1940 US Census Record
Model Tree available1940 United States Federal Census · Dawson-County, Montana
Our Model Tree links this Clarence Jones across the 1920, 1930 and 1940 US Censuses in Dawson-County, Montana (XGBoost, ~Confirmed), with identified parents Archie & Clara — first a head (b.~1912), then head of a 5-person household.
Age 28
b. ~1912
Male
Head
Born: Wisconsin
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Dawson-County, Montana |
| Surname | Jones |
| Given Name | Clarence |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Glendive City |
| 1935 Residence (County) | Dawson |
| Additional Details | |
| Occupation | Coal dock foreman |
| Industry | Northern Pacific Railroad |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1080 |
| Highest Grade | H 2 |
| 1935 Residence | Same place |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
| Occupation | Coal Dock Foreman |
| Township / Ward | Glendive City |
| Est. Birth Year | ~1912 |
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 Clarence | Age | Birth yr |
|---|---|---|---|---|
| Betty Jones | Daughter | — | 5 | ~1935 |
| Laddonna Jones | Daughter | — | 2 | ~1938 |
| Clarence Jones | Head | — | 28 | ~1912 |
| Donald Jones | Son | — | 5 | ~1935 |
| Ruth Jones | Spouse | — | 25 | ~1915 |
Census Appearances
1920
Dawson, Montana
Son, age 8
Dawson, Montana · implied b. ~1912 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jones |
| Given Name | Clarence |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Wisconsin |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1930
Dawson, Montana
Son, age 18
Dawson, Montana · implied b. ~1912 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jones |
| Given Name | Clarence W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Wisconsin |
| Occupation | Laborer |
| Industry | General Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1940
Dawson-County, Montana
Head, age 28
Dawson-County, Montana · implied b. ~1912 — 5 household members
| Surname | Jones |
| Given Name | Clarence |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Glendive City |
| 1935 Residence (County) | Dawson |
| Occupation | Coal dock foreman |
| Industry | Northern Pacific Railroad |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1080 |
| Highest Grade | H 2 |
| 1935 Residence | Same place |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
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 Clarence Jones across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Archie Jones (~0.92 confidence) and mother Clara Jones (~0.92 confidence) and mother Clara Jones (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Archie Jones
b. ~1888
Source father
● Household
· direct · ~0.92
Mother
Clara Jones
b. ~1891
Source mother
● Household
· direct · ~0.92
Mother
Clara Jones
b. ~1892
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Clarence Jones
Head · 1940 · age 28 · b. ~1912 · Montana
★ 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 — Dawson-County, Montana
Open full size
1940 US Federal Census — Dawson-County, Montana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02217-00100)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | James D. Ruddy | 30 | Head | Switchman | Canada |
| 2 | Viola Ruddy | 27 | Wife | — | Idaho |
| 3 | Kathryn Ruddy | 5 | Daughter | — | Montana |
| 4 | Clifford Ruddy | 27 | Brother | Cook | Canada |
| 5 | Mary Bray | 61 | Head | Waitress | Wisconsin |
| 6 | Clarence Jones THIS PERSON | 28 | Head | Coal Dock Foreman | Wisconsin |
| 7 | Ruth Jones | 25 | Wife | — | Wisconsin |
| 8 | Betty Jones | 5 | Daughter | — | Montana |
| 9 | Donald Jones | 5 | Son | — | Montana |
| 10 | Laddonna Jones | 2 | Daughter | — | Montana |
| 11 | Ray C. Reed | 67 | Head | — | Nebraska |
| 12 | Nellie Reed | 67 | Wife | — | Missouri |
| 13 | Ray Hancock | 47 | Head | Oiler | Iowa |
| 14 | Mary Hancock | 45 | Wife | — | Iowa |
| 15 | Wilfred Hancock | 24 | Son | Sub Inspector | Montana |
| 16 | Nellie Hancock | 15 | Daughter | — | Iowa |
| 17 | Beverly Hancock | 7 | Daughter | — | Montana |
| 18 | Darrell Hancock | 4 | Son | — | Montana |
| 19 | Edward F. Seley | 45 | Head | — | Illinois |
| 20 | Mable Ann Seley | 69 | Wife | — | Indiana |
| 21 | D. A. Radcliff | 70 | Boarder | — | Indiana |
| 22 | Inger Isabell | 38 | Head | — | Minnesota |
| 23 | Ray H. Isabell | 12 | Son | — | Montana |
| 24 | Donald J. Isabell | 10 | Son | — | Montana |
| 25 | Anton Pfau | 44 | Head | Carpenter | Russia |
| 26 | Barbara Pfau | 41 | Wife | — | North Dakota |
| 27 | Helen Pfau | 17 | Daughter | — | North Dakota |
| 28 | Marjorie Pfau | 15 | Daughter | — | North Dakota |
| 29 | Richard Pfau | 13 | Son | — | Montana |
| 30 | Viola Pfau | 12 | Daughter | — | Montana |
| 31 | Robert Pfau | 8 | Son | — | Montana |
| 32 | Abe Sandvick | 31 | Head | Proprietor | Illinois |
| 33 | Mary Sandvick | 29 | Wife | — | Russia |
| 34 | Dorothy Ann Sandvick | 5 | Daughter | — | Minnesota |
| 35 | Paula Kay Sandvick | 3 | Daughter | — | Montana |
| 36 | Katherine Deebarger | 43 | Head | Housework | Yugoslavia |
| 37 | Nick Deebarger | 22 | Son | Mechanic | North Dakota |
| 38 | Mathias Deebarger | 20 | Son | Car Clerk Apprentice | Montana |
| 39 | Martin Deebarger | 17 | Son | — | Montana |
| 40 | Helen Deebarger | 15 | Daughter | — | Montana |
Pedigree Summary
Clarence
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)