JC
James Caldwell — 1930 US Census Record
Model Tree available1930 United States Federal Census · Thurston, Washington
Our Model Tree links this James Caldwell across the 1920, 1930 and 1940 US Censuses in Thurston, Washington (XGBoost, ~Confirmed), with identified parents Lewis & Leslie — first a son (b.~1915), then head of a 6-person household.
Age 15
b. ~1915
Male
Son
Born: Oregon
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Thurston, Washington |
| Surname | Caldwell |
| Given Name | James J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Oregon |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Wisconsin |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
| Township / Ward | Schneider Prairie Precinct |
| Est. Birth Year | ~1915 |
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.
6 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Lewis Caldwell | Head | — | 55 | ~1875 |
| Patrick Caldwell | Son | — | 10 | ~1920 |
| James Caldwell | Son | — | 15 | ~1915 |
| Bernard Caldwell | Son | — | 21 | ~1909 |
| Samuel Caldwell | Son | — | 17 | ~1913 |
| Myrtle Caldwell | Spouse | — | 44 | ~1886 |
Census Appearances
1920
Thurston, Washington
Son, age 4
Thurston, Washington · implied b. ~1916 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Caldwell |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Oregon |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Wisconsin |
| Occupation | none |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
1930
Thurston, Washington
Son, age 15
Thurston, Washington · implied b. ~1915 — 6 household members
| Surname | Caldwell |
| Given Name | James J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Oregon |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Wisconsin |
| Can Read/Write | Yes |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
1940
Thurston-County, Washington
Son, age 25
Thurston-County, Washington · implied b. ~1915 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Caldwell |
| Given Name | Jim |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Oregon |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Thurston |
| Occupation | Extra fireman |
| Industry | Logging Co. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 442 |
| Highest Grade | H-3 |
| 1935 Residence | Washington |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
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 Caldwell across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Lewis Caldwell (~0.92 confidence) and father Leslie Caldwell (~0.92 confidence) and mother Myrtle Caldwell (~0.92 confidence) and mother Myrtle Caldwell (~0.92 confidence) and mother Myrtle Caldwell (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Lewis Caldwell
b. ~1875
Source father
● Household
· direct · ~0.92
Father
Leslie Caldwell
b. ~1886
Source father
● Household
· direct · ~0.92
Mother
Myrtle Caldwell
b. ~1886
Source mother
● Household
· direct · ~0.92
Mother
Myrtle Caldwell
b. ~1886
Source mother
● Household
· direct · ~0.92
Mother
Myrtle Caldwell
b. ~1887
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Caldwell
Son · 1930 · age 15 · b. ~1915 · Washington
★ You are viewing this record
Sibling
Bernard Caldwell
Sibling · 1930 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patrick Caldwell
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Samuel Caldwell
Sibling · 1930 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Thurston, Washington
Open full size
1930 US Federal Census — Thurston, Washington
Page Contents
50 people indexed on this census page (ia:1930:15thcensus2521unit:0566)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Edward E. Gullberg | 31 | Head | Mechanic | Washington |
| 2 | Clara M. Gullberg | 31 | Wife | — | Minnesota |
| 3 | Edward E. Jr. Gullberg | 7 | Son | — | Washington |
| 4 | Elyn M. Gullberg | 5 | Daughter | — | Washington |
| 5 | Esther J. Gullberg | 2 | Daughter | — | Washington |
| 6 | Clara Mugner | 67 | Head | — | Germany |
| 7 | Charles H. Mugner | 32 | Son | Laborer | Washington |
| 8 | Agnes M. Baldwin | 39 | Head | Proprietor | New York |
| 9 | Gladys Baldwin | 21 | Daughter | — | New York |
| 10 | Peggy Guerback | 23 | Daughter | Waitress | United States |
| 11 | Kathryn Guerback | 31 | Boarder | — | United States |
| 12 | Harry L. Sage | 46 | Head | Sawyer | Missouri |
| 13 | Bertha M. Sage | 35 | Wife | — | Washington |
| 14 | Elizabeth Sage | 4 | Daughter | — | Washington |
| 15 | William Mitchell | 45 | Head | Sawyer | Missouri |
| 16 | Ida T. Mitchell | 42 | Wife | — | Missouri |
| 17 | Lynn C. Duval | 76 | Head | — | Kansas |
| 18 | Anna H. Duval | 58 | Wife | — | Oregon |
| 19 | Lynn Duval | 3 | Granddaughter | — | Washington |
| 20 | Frank Trony | 33 | Boarder | Hook Tender | Washington |
| 21 | James O. Thornhill | 30 | Head | Mechanic | Alabama |
| 22 | Peggy Thornhill | 25 | Wife | — | Oklahoma |
| 23 | Robert James Thornhill | 6 | Son | — | Washington |
| 24 | Betty Ann Thornhill | 2 | Daughter | — | Washington |
| 25 | Virginia L. Thornhill | 0 | Daughter | — | Washington |
| 26 | Harry P. Lehman | 51 | Head | Brakeman | Missouri |
| 27 | Maude L. Lehman | 42 | Wife | — | Minnesota |
| 28 | Irene C. Lehman | 19 | Daughter | — | Washington |
| 29 | Lois M. Lehman | 14 | Daughter | — | Washington |
| 30 | Ruth M. Lehman | 11 | Daughter | — | Washington |
| 31 | Harriet A. Lehman | 7 | Daughter | — | Washington |
| 32 | Lewis C. Caldwell | 55 | Head | Machinist | Pennsylvania |
| 33 | Myrtle M. Caldwell | 44 | Wife | — | Iowa |
| 34 | Bernard C. Caldwell | 21 | Son | Truck Driver | Washington |
| 35 | Samuel H. Caldwell | 17 | Son | — | Oregon |
| 36 | James J. Caldwell THIS PERSON | 15 | Son | — | Oregon |
| 37 | Patrick R. Caldwell | 10 | Son | — | Washington |
| 38 | William Lynes | 42 | Head | Boom Man | Minnesota |
| 39 | Ruth Lynes | 37 | Wife | — | Montana |
| 40 | Dorothy N. Lynes | 10 | Son | — | Washington |
| 41 | Ione M. Lynes | 8 | Daughter | — | Washington |
| 42 | William Jr. Lynes | 2 | Son | — | Washington |
| 43 | Theodore Henkels | 41 | Head | Bookkeeper | Iowa |
| 44 | Alice Henkels | 41 | Wife | — | Iowa |
| 45 | J. Leslie Henkels | 8 | Son | — | Iowa |
| 46 | Mary C. Henkels | 5 | Daughter | — | Iowa |
| 47 | John P. Henkels | 2 | Son | — | Washington |
| 48 | William Marcott | 58 | Head | Machinist | Vermont |
| 49 | Elizabeth Marcott | 50 | Wife | — | Louisiana |
| 50 | Gustav F. Meyer | 52 | Head | Superintendent | New York |
Pedigree Summary
James + 3 siblings
Gen 1 · 5 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)