AA
Arthur Adams — 1920 US Census Record
Model Tree available1920 United States Federal Census · Boulder, Colorado
Our Model Tree links this Arthur Adams across the 1900, 1910 and 1920 US Censuses in Boulder, Colorado (XGBoost, ~Confirmed), with identified parents Thomas & Nancy — first a head (b.~1885), then head of a 3-person household.
Age 35
b. ~1885
Male
Head
Born: Colorado
Married
1920 Census Record Details
| Census Year | 1920 |
| Location | Boulder, Colorado |
| Surname | Adams |
| Given Name | Arthur |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Colorado |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Additional Details | |
| Industry | Quartz Mine |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
| Township / Ward | Sativa Precinct 17 |
| Est. Birth Year | ~1885 |
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 1920 census.
| Name | Relation to head | Relative to Arthur | Age | Birth yr |
|---|---|---|---|---|
| Arthur Adams | Head | — | 35 | ~1885 |
| Leona Adams | Spouse | — | 28 | ~1892 |
| Beatrice Adams | Daughter | — | 4 | ~1916 |
Census Appearances
1900
Boulder, Colorado
Son, age 19
Boulder, Colorado · implied b. ~1881 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Adams |
| Given Name | Arthur D. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Colorado |
| Birth Month | Sep |
| Birth Year | 1881 |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Occupation | Clerk |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1910
Boulder, Colorado
Son, age 25
Boulder, Colorado · implied b. ~1885 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Adams |
| Given Name | Arthur |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Occupation | Miner |
| Industry | Gold Mine |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1920
Boulder, Colorado
Head, age 35
Boulder, Colorado · implied b. ~1885 — 3 household members
| Surname | Adams |
| Given Name | Arthur |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Colorado |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Industry | Quartz Mine |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| 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 Arthur Adams across 3 US Census years (1900, 1910 and 1920) in Boulder, Colorado, using XGBoost record linkage. Identified parents: father Thomas Adams (~0.92 confidence) and mother Nancy Adams (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Thomas Adams
b. ~1840
Source father
● Household
· direct · ~0.92
Mother
Nancy Adams
b. ~1853
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Arthur Adams
Head · 1920 · age 35 · b. ~1885 · Colorado
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1920 US Federal Census — Boulder, Colorado
Open full size
1920 US Federal Census — Boulder, Colorado
Page Contents
49 people indexed on this census page (ia:1920:14thcensusofpopu156unit:0241)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Bertha S. Jones | 27 | Head | — | Nebraska |
| 52 | Elva S. Conroe | 35 | Lodger | Manager | Pennsylvania |
| 53 | William H. Farnsworth | 46 | Head | Foreman | Missouri |
| 54 | Anthe L. Johnson | 47 | Head | Teacher | Sweden |
| 55 | Arthur Adams THIS PERSON | 35 | Head | — | Colorado |
| 56 | Leona M. Adams | 28 | Wife | — | Colorado |
| 57 | Beatrice M. Adams | 4 | Daughter | — | Colorado |
| 58 | Steven Pastore | 41 | Head | Farmer | Italy |
| 59 | Caroline J. Pastore | 28 | Wife | — | Germany |
| 60 | Elsie M. Pastore | 8 | Daughter | — | Colorado |
| 61 | Lucille M. Pastore | 5 | Daughter | — | Colorado |
| 62 | James M. Pastore | 4 | Son | — | Colorado |
| 63 | Charles S. Pastore | 1 | Son | — | Colorado |
| 64 | Finley W. Horton | 38 | Head | Miner | Canada |
| 65 | Grace S. Horton | 31 | Wife | — | Canada |
| 66 | Earl L. Horton | 8 | Son | — | Colorado |
| 67 | Russell W. Horton | 3 | Son | — | Colorado |
| 68 | Edward Preston | 55 | Head | Miner | Indiana |
| 69 | Minor M. Smith | 48 | Lodger | Miner | Ohio |
| 70 | Gusta Skichlig | 31 | Head | Miner | Sweden |
| 71 | Harry Skichlig | 10 | Daughter | — | Sweden |
| 72 | Lawrence Skichlig | 8 | Son | — | Illinois |
| 73 | Elmer Anderson | 25 | Lodger | Miner | Sweden |
| 74 | Elmer Drawert | 25 | Lodger | Miner | Sweden |
| 75 | William W. Weaver | 42 | Head | Miner | Indiana |
| 76 | Arvid E. Brunly | 50 | Lodger | Miner | Colorado |
| 77 | Roy Rodrick | 33 | Head | Miner | Colorado |
| 78 | Bessie E. Rodrick | 31 | Wife | — | New Mexico |
| 79 | Eldrid A. Rodrick | 4 | Son | — | Colorado |
| 80 | Elmer Saunders | 31 | Head | Miner | Kansas |
| 81 | Lucile Saunders | 22 | Wife | — | Missouri |
| 82 | Virginia Saunders | 4 | Daughter | — | Colorado |
| 83 | Ernest L. Saunders | 1 | Son | — | Colorado |
| 84 | Martha A. Boynton | 56 | Mother-in-law | — | Iowa |
| 85 | Antone S. Love | 15 | Brother-in-law | — | Missouri |
| 86 | John Romarin | 37 | Head | Miner | Italy |
| 87 | Helen Romarin | 26 | Wife | — | Italy |
| 88 | Angeline E. Romarin | 10 | Daughter | — | Colorado |
| 89 | Helen H. Romarin | 7 | Daughter | — | Colorado |
| 90 | Lawrence Romarin | 5 | Son | — | Colorado |
| 91 | Albert R. Colasacco | 15 | Brother-in-law | — | Colorado |
| 92 | Frank Jacobucci | 32 | Head | Section Foreman | Italy |
| 93 | Valentine Jacobucci | 23 | Wife | — | Italy |
| 94 | Edith Jacobucci | 1 | Daughter | — | Colorado |
| 95 | Palmina M. Jacobucci | 0 | Daughter | — | Colorado |
| 96 | Frank Amicone | 16 | Brother-in-law | Miner | Pennsylvania |
| 97 | Herbert H. Endicott | 45 | Head | Merchant | England |
| 98 | William Cundiff | 45 | Head | Miner | Italy |
| 99 | Rosa Cundiff | 38 | Wife | — | Italy |
Pedigree Summary
Arthur
Gen 1 · 2 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)