JW
James Warren — 1940 US Census Record
Model Tree available1940 United States Federal Census · Salt-Lake-County, Utah
Our Model Tree links this James Warren across the 1920, 1930 and 1940 US Censuses in Salt-Lake-County, Utah (XGBoost, ~Confirmed), with identified parents James & Helen — first a son (b.~1914), then head of a 3-person household.
Age 26
b. ~1914
Male
Son
Born: Utah
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Salt-Lake-County, Utah |
| Surname | Warren |
| Given Name | James H. Jr. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Utah |
| 1935 Residence (City) | Los Angeles |
| 1935 Residence (County) | Los Angeles |
| Additional Details | |
| Occupation | laborer |
| Industry | Railroad |
| Class of Worker | PW |
| Hours Worked | 56 |
| Income (1939) | 0 |
| Highest Grade | No 7 |
| 1935 Residence | California |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
| Occupation | Laborer |
| Township / Ward | Salt Lake City |
| Est. Birth Year | ~1914 |
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 James | Age | Birth yr |
|---|---|---|---|---|
| James Warren | Head | — | 44 | ~1896 |
| James Warren | Son | — | 26 | ~1914 |
| Mary Warren | Spouse | — | 65 | ~1875 |
Census Appearances
1920
Salt Lake, …
Son, age 8
Salt Lake, Utah · implied b. ~1912 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Warren |
| Given Name | James Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Utah |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
1930
Salt Lake, …
Son, age 16
Salt Lake, Utah · implied b. ~1914 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Warren |
| Given Name | James Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Utah |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Can Read/Write | Yes |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
1940
Salt-Lake-County, Utah
Son, age 26
Salt-Lake-County, Utah · implied b. ~1914 — 3 household members
| Surname | Warren |
| Given Name | James H. Jr. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Utah |
| 1935 Residence (City) | Los Angeles |
| 1935 Residence (County) | Los Angeles |
| Occupation | laborer |
| Industry | Railroad |
| Class of Worker | PW |
| Hours Worked | 56 |
| Income (1939) | 0 |
| Highest Grade | No 7 |
| 1935 Residence | California |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
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 James Warren across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father James Warren (~0.92 confidence) and mother Helen Kragh (~0.92 confidence) and mother Mary Warren (~0.92 confidence) and father James Warren (~0.92 confidence) and mother Mary Warren (~0.92 confidence) and father James Warren (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Warren
b. ~1847
Source father
● Household
· direct · ~0.92
Mother
Helen Kragh
b. ~1860
Source mother
● Household
· direct · ~0.92
Mother
Mary Warren
b. ~1875
Source mother
● Household
· direct · ~0.92
Father
James Warren
b. ~1876
Source father
● Household
· direct · ~0.92
Mother
Mary Warren
b. ~1877
Source mother
● Household
· direct · ~0.92
Father
James Warren
b. ~1896
Source father
● Household
· direct · ~0.92
This person
Anchor record
James Warren
Son · 1940 · age 26 · b. ~1914 · Utah
★ 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 — Salt-Lake-County, Utah
Open full size
1940 US Federal Census — Salt-Lake-County, Utah
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04225-00370)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Johanna Ranglach | 66 | Wife | — | Germany |
| 42 | Rosa Potter | 78 | Head | — | Pennsylvania |
| 43 | Isabelle Crafts | 79 | Head | — | England |
| 44 | Blanche E. Sells | 61 | Head | Nurse | Ohio |
| 45 | Sarah J. Diggle | 65 | Head | — | England |
| 46 | Sarah Jane Diggle | 30 | daughter | — | England |
| 47 | Hallie E. Belding | 72 | Head | — | Iowa |
| 48 | John D. Rees | 78 | Head | — | Utah |
| 49 | Hannah D. Rees | 75 | Wife | — | Denmark |
| 50 | Anna M. Hamilton | 72 | Head | — | Utah |
| 51 | Carrie K. Martin | 66 | Head | — | Missouri |
| 52 | Annie Fitt | 81 | Head | — | Denmark |
| 53 | Gloria Hayes | 17 | grand daughter | Nurse | Utah |
| 54 | Reid S. Hayes | 5 | great grandson | — | Utah |
| 55 | Preston R. Ballard | 32 | Head | Laborer | Utah |
| 56 | Mildred R. Ballard | 32 | Wife | — | Utah |
| 57 | Barbara J. Ballard | 5 | daughter | — | Utah |
| 58 | Jeanette M. Reynolds | 76 | Head | — | Utah |
| 59 | James H. Warren | 44 | Head | Laborer | England |
| 60 | Mary A. Warren | 65 | Wife | — | England |
| 61 | James H. Jr. Warren THIS PERSON | 26 | son | Laborer | Utah |
| 62 | Alice M. Harris | 57 | Head | Library Clerk | Utah |
| 63 | Peter J. Hansen | 74 | Head | — | Denmark |
| 64 | Alice M. Hansen | 73 | Wife | — | England |
| 65 | William Parkinson | 50 | Head | Salesman | Utah |
| 66 | Annie Whatcott | 79 | Head | — | Utah |
| 67 | Myrtle Johnson | 58 | Head | Seamstress | Arizona |
| 68 | Melissa J. Kimball | 64 | Head | — | Utah |
| 69 | Lyman F. Zirker | 28 | Head | Painter | Utah |
| 70 | Lorene F. Zirker | 31 | Wife | Elevator Operator | Utah |
| 71 | Valerie R. Zirker | 7 | daughter | — | Utah |
| 72 | Fannie W. Winter | 80 | Head | — | England |
| 73 | Mary J. Farnsworth | 81 | Head | — | Iowa |
| 74 | Lena H. Neselt | 87 | Head | — | Denmark |
| 75 | Sarah C. Newbold | 72 | Head | — | Utah |
| 76 | David P. Brown | 78 | Head | — | Utah |
| 77 | Hannah L. Brown | 74 | Wife | — | Utah |
| 78 | Jennie T. Rennett | 68 | Head | — | Denmark |
| 79 | Owen R. Speirs | 73 | Head | — | Utah |
| 80 | Hannah Herstead | 64 | Head | — | Norway |
Pedigree Summary
James
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)