RL
Ruth Lewis — 1920 US Census Record
Model Tree available1920 United States Federal Census · Boulder, Colorado
Our Model Tree links this Ruth Lewis across the 1900, 1910 and 1920 US Censuses in Boulder, Colorado (XGBoost, ~Confirmed), with identified parents Orange & Sarah — first a daughter (b.~1900), then head of a 7-person household.
Age 20
b. ~1900
Female
Daughter
Born: Colorado
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Boulder, Colorado |
| Surname | Lewis |
| Given Name | Ruth |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Illinois |
| Additional Details | |
| Occupation | teacher |
| Industry | rural school |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
| Occupation | Teacher |
| Township / Ward | Boulder City |
| Est. Birth Year | ~1900 |
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 1920 census.
| Name | Relation to head | Relative to Ruth | Age | Birth yr |
|---|---|---|---|---|
| Fay Lewis | Daughter | — | 16 | ~1904 |
| Ruth Lewis | Daughter | — | 20 | ~1900 |
| Marguerite Lewis | Daughter | — | 21 | ~1899 |
| Sarah Lewis | Head | — | 59 | ~1861 |
| Lamar Lewis | Son | — | 14 | ~1906 |
| William Lewis | Son | — | 27 | ~1893 |
| Jesse Lewis | Son | — | 23 | ~1897 |
Census Appearances
1900
Boulder, Colorado
Daughter, age
Boulder, Colorado · implied b. ~1900 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lewis |
| Given Name | Ruth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Colorado |
| Birth Month | Jan |
| Birth Year | 1900 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Illinois |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1910
Boulder, Colorado
Daughter, age 10
Boulder, Colorado · implied b. ~1900 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lewis |
| Given Name | Ruth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1920
Boulder, Colorado
Daughter, age 20
Boulder, Colorado · implied b. ~1900 — 7 household members
| Surname | Lewis |
| Given Name | Ruth |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Illinois |
| Occupation | teacher |
| Industry | rural school |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| 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 Ruth Lewis across 3 US Census years (1900, 1910 and 1920) in Boulder, Colorado, using XGBoost record linkage. Identified parents: father Orange Lewis (~0.92 confidence) and mother Sarah Lewis (~0.92 confidence) and mother Sarah Lewis (~0.92 confidence) and mother Sadie Lewis (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Orange Lewis
b. ~1861
Source father
● Household
· direct · ~0.92
Mother
Sarah Lewis
b. ~1861
Source mother
● Household
· direct · ~0.92
Mother
Sarah Lewis
b. ~1866
Source mother
● Household
· direct · ~0.92
Mother
Sadie Lewis
b. ~1867
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Ruth Lewis
Daughter · 1920 · age 20 · b. ~1900 · Colorado
★ You are viewing this record
Sibling
Fay Lewis
Sibling · 1920 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marguerite Lewis
Sibling · 1920 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jesse Lewis
Sibling · 1920 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lamar Lewis
Sibling · 1920 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Lewis
Sibling · 1920 · 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
1920 US Federal Census — Boulder, Colorado
Open full size
1920 US Federal Census — Boulder, Colorado
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu156unit:0526)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Martin P Manny | 55 | Head | Salesman | Illinois |
| 2 | Laura Manny | 54 | wife | None | Iowa |
| 3 | Grace Manny | 21 | daughter | Saleslady | Kansas |
| 4 | Myrtle Manny | 18 | daughter | None | Kansas |
| 5 | Elizabeth Manny | 17 | daughter | None | Kansas |
| 6 | Margaret Manny | 9 | daughter | None | Kansas |
| 7 | Minnie C Olson | 46 | Head | None | Illinois |
| 8 | Reuben L Olson | 25 | son | Bookkeeper | Nebraska |
| 9 | Earl R Olson | 23 | son | Salesman | Nebraska |
| 10 | Mary E Pfalzgraf | 42 | Head | None | Ohio |
| 11 | Minnie Pfalzgraf | 40 | lodger | Dressmaking | Ohio |
| 12 | Anna Lund | 60 | Head | None | Sweden |
| 13 | Olga Lund | 24 | daughter | None | Colorado |
| 14 | Charles H Kneale | 63 | Head | Carpenter | Isle of Man |
| 15 | Mary Kneale | 59 | wife | None | Illinois |
| 16 | William C Kneale | 22 | son | None | Colorado |
| 17 | Edward C Kneale | 19 | son | Laborer | Colorado |
| 18 | Harriet O'Connor | 52 | Head | None | Ireland |
| 19 | Correl O'Connor | 21 | daughter | Teacher | Kansas |
| 20 | John R O'Connor | 16 | son | None | Colorado |
| 21 | Ruth E O'Connor | 12 | daughter | None | Colorado |
| 22 | Mary Ella Blanchard | 58 | lodger | None | Illinois |
| 23 | Henry H Mullenix | 36 | Head | Meat Cutter | Mississippi |
| 24 | Myrtle Mullenix | 34 | wife | None | Missouri |
| 25 | Sarah Lewis | 59 | Head | Seamstress | Illinois |
| 26 | William Lewis | 27 | son | Engineer | Nebraska |
| 27 | Jesse Lewis | 23 | son | Fireman | Colorado |
| 28 | Fay Lewis | 16 | daughter | None | Colorado |
| 29 | Marguerite Lewis | 21 | daughter | Teacher | Colorado |
| 30 | Ruth Lewis THIS PERSON | 20 | daughter | Teacher | Colorado |
| 31 | Lamar Lewis | 14 | son | None | Colorado |
| 32 | William L Bruver | 55 | Head | None | Colorado |
| 33 | Jack W Bruver | 13 | son | None | Colorado |
| 34 | Catherine Bruver | 9 | daughter | None | Colorado |
| 35 | Mary Lea Bruver | 7 | daughter | None | Colorado |
| 36 | Catherine Thomas | 10 | niece | None | Colorado |
| 37 | Edward Thomas | 8 | nephew | None | Colorado |
| 38 | Herbert C Petty | 48 | Head | Laborer | Missouri |
| 39 | Alice Petty | 41 | wife | None | Iowa |
| 40 | John Petty | 20 | son | None | Iowa |
| 41 | Tophel Petty | 14 | son | None | Iowa |
| 42 | Lawrence Petty | 8 | son | None | Iowa |
| 43 | Carl Dehn | 72 | Head | Agent | Germany |
| 44 | Alfred L Hampton | 65 | Head | None | Tennessee |
| 45 | Margaret E Hampton | 60 | wife | Commercial | Georgia |
| 46 | Herbert V Hampton | 37 | son | None | Georgia |
| 47 | Clarence Hampton | 33 | son | None | Georgia |
| 48 | Clara F Hampton | 74 | Head | None | New York |
| 49 | William Hampton | 71 | husband | None | New York |
| 50 | Fred Hampton | 27 | son | Laborer | Nebraska |
Related Census Records
Pedigree Summary
Ruth + 5 siblings
Gen 1 · 4 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)