EC
Ellen Clark — 1910 US Census Record
Linked across censuses1910 United States Federal Census · Boulder, Colorado
Our Model Tree links this Ellen Clark across the 1900 and 1910 US Censuses in Boulder, Colorado (XGBoost, ~Confirmed) — first a daughter (b.~1900), then head of a 7-person household.
Age 10
b. ~1900
Female
Daughter
Born: Colorado
Single
1910 Census Record Details
| Census Year | 1910 |
| Location | Boulder, Colorado |
| Surname | Clark |
| Given Name | Ellen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
| Township / Ward | Louisville Town Part Of |
| 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 1910 census.
| Name | Relation to head | Relative to Ellen | Age | Birth yr |
|---|---|---|---|---|
| Emma Clark | Spouse | — | 36 | ~1874 |
| William Clark | Son | — | 13 | ~1897 |
| Mary Clark | Daughter | — | 8 | ~1902 |
| Ellen Hogan | Other | — | 79 | ~1831 |
| Agnes Clark | Daughter | — | 5 | ~1905 |
| Ellen Clark | Daughter | — | 10 | ~1900 |
| James Clark | Head | — | 40 | ~1870 |
Census Appearances
1900
Boulder, Colorado
Daughter, age
Boulder, Colorado · implied b. ~1900 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Ellen |
| 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 | Illinois |
| Mother's Birthplace | Pennsylvania |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1910
Boulder, Colorado
Daughter, age 10
Boulder, Colorado · implied b. ~1900 — 7 household members
| Surname | Clark |
| Given Name | Ellen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Pennsylvania |
| 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 Ellen Clark across 2 US Census years (1900 and 1910) in Boulder, Colorado, using XGBoost record linkage.
Show:
This person
Anchor record
Ellen Clark
Daughter · 1910 · age 10 · b. ~1900 · Colorado
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Sibling
Agnes Clark
Sibling · 1910 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Clark
Sibling · 1910 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Clark
Sibling · 1910 · age 13
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
1910 US Federal Census — Boulder, Colorado
Open full size
1910 US Federal Census — Boulder, Colorado
Page Contents
20 people indexed on this census page (ia:1910:13thcensus1910po0113unit:0450)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Fred Sisenberger | 45 | Head | Gardener | Ohio |
| 52 | Augusta Sisenberger | 43 | Wife | — | Ohio |
| 53 | Nellie Sisenberger | 22 | Daughter | Teacher | Ohio |
| 54 | Edith Sisenberger | 20 | Daughter | — | Ohio |
| 55 | Mildred Sisenberger | 9 | Daughter | — | Colorado |
| 56 | Alynda Sisen | 36 | Head | Housekeeper | Iowa |
| 57 | Herman Sisen | 6 | Son | — | Iowa |
| 58 | Daniel Williamson | 34 | Head | Miner | Scotland |
| 59 | Ida Williamson | 33 | Wife | — | Michigan |
| 60 | James Williamson | 14 | Son | — | Iowa |
| 61 | Henry Williamson | 6 | Son | — | Iowa |
| 62 | Frankie Williamson | 4 | Son | — | Colorado |
| 63 | Emma Williamson | 1 | Daughter | — | Colorado |
| 64 | James Clark | 40 | Head | Miner | Illinois |
| 65 | Emma Clark | 36 | Wife | — | Pennsylvania |
| 66 | William Clark | 13 | Son | — | Colorado |
| 67 | Ellen Clark THIS PERSON | 10 | Daughter | — | Colorado |
| 68 | Mary Clark | 8 | Daughter | — | Colorado |
| 69 | Agnes Clark | 5 | Daughter | — | Colorado |
| 70 | Ellen Hogan | 79 | Mother | — | Scotland |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1910 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)