JP
James Pierce — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Teller-County, Colorado
Our Model Tree links this James Pierce across the 1930 and 1940 US Censuses in Teller-County, Colorado (XGBoost, ~Confirmed) — first a son (b.~1925), then head of a 7-person household.
Age 15
b. ~1925
Male
Son
Born: Colorado
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Teller-County, Colorado |
| Surname | Pierce |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Colorado |
| 1935 Residence (City) | Precinct 9, G. E. D. 21 Victor Prec & Bull Hill |
| 1935 Residence (County) | Teller |
| Additional Details | |
| Highest Grade | H-2 |
| 1935 Residence | Same place |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
| Township / Ward | Precinct 9 G E D 21 Victor Prec Bull Hill |
| Est. Birth Year | ~1925 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Gladys Pierce | Daughter | — | 19 | ~1921 |
| Joe Pierce | Head | — | 57 | ~1883 |
| William Pierce | Son | — | 21 | ~1919 |
| James Pierce | Son | — | 15 | ~1925 |
| Ralph Pierce | Son | — | 23 | ~1917 |
| Charles Pierce | Son | — | 27 | ~1913 |
| Margaret Pierce | Spouse | — | 52 | ~1888 |
Census Appearances
1930
Teller, Colorado
Son, age 5
Teller, Colorado · implied b. ~1925 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Pierce |
| Given Name | James B |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1940
Teller-County, Colorado
Son, age 15
Teller-County, Colorado · implied b. ~1925 — 7 household members
| Surname | Pierce |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Colorado |
| 1935 Residence (City) | Precinct 9, G. E. D. 21 Victor Prec & Bull Hill |
| 1935 Residence (County) | Teller |
| Highest Grade | H-2 |
| 1935 Residence | Same place |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
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 Pierce across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Pierce
Son · 1940 · age 15 · b. ~1925 · Colorado
★ You are viewing this record
Sibling
Ralph Pierce
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gladys Pierce
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Pierce
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Pierce
Sibling · 1940 · age 27
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
1940 US Federal Census — Teller-County, Colorado
Open full size
1940 US Federal Census — Teller-County, Colorado
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-00480-00502)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | William Moore | None | Head | — | — |
| 42 | Helen Moore | None | — | — | — |
| 43 | Donald Moore | None | — | — | — |
| 46 | Joe L. Pierce | 57 | Head | Miner | Yugoslavia |
| 47 | Margaret Pierce | 52 | Wife | — | Yugoslavia |
| 48 | Charles Pierce | 27 | Son | Miner | Colorado |
| 49 | Ralph Pierce | 23 | Son | Miner | Colorado |
| 50 | William Pierce | 21 | Son | Miner | Colorado |
| 51 | Gladys Pierce | 19 | Daughter | — | Colorado |
| 52 | James Pierce THIS PERSON | 15 | Son | — | Colorado |
| 53 | J. D. Pankratz | 51 | Head | Miner | Kansas |
| 54 | Edwin Pankratz | 18 | Son | Miner | Colorado |
| 55 | Melvin Pankratz | 16 | Son | — | Colorado |
| 56 | James Pankratz | 5 | Son | — | Colorado |
| 57 | Alton Olivier | 84 | Head | — | Maine |
| 58 | A. M. Brown | 82 | Head | — | Iowa |
| 59 | Harry Luce | 64 | Head | Miner | Texas |
| 60 | James Bennett | 60 | Head | Miner | Indiana |
| 61 | Elsie Bennett | 54 | Wife | — | Iowa |
| 62 | Bette Jean Bennett | 15 | Daughter | — | Colorado |
| 63 | Jesse Raymond | 29 | Daughter | Postal Clerk | Colorado |
| 64 | Irene Raymond | 5 | Daughter | — | Colorado |
| 65 | Anton Salmon | 33 | Head | Miner | Illinois |
| 66 | Elizabeth Salmon | 32 | Wife | — | Colorado |
| 67 | John Anton Salmon | 11 | Son | — | Colorado |
| 68 | William C. Salmon | 9 | Son | — | Colorado |
| 69 | Ronald R. Salmon | 6 | Son | — | Colorado |
| 70 | Stanley L. Salmon | 4 | Son | — | Colorado |
| 71 | William Wreath | 61 | Head | Yard Foreman | Kansas |
| 72 | Mary Wreath | 59 | Wife | — | Iowa |
| 73 | George Torres | 30 | Head | Section Hand | New Mexico |
| 74 | Josephine Torres | 23 | Wife | — | Colorado |
| 75 | Richard Torres | 5 | Son | — | Colorado |
| 76 | Teresa Torres | 3 | Daughter | — | Colorado |
| 77 | Mary Louise Torres | 1 | Daughter | — | Colorado |
| 78 | Trinidad Malacapas | 31 | Head | Section Hand | Old Mexico |
| 79 | Lupe Malacapas | 26 | Wife | — | New Mexico |
| 80 | Daniel Malacapas | 9 | Son | — | Texas |
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)