DR
Dorothy Robinson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Boulder-County, Colorado
Our Model Tree links this Dorothy Robinson across the 1930 and 1940 US Censuses in Boulder-County, Colorado (XGBoost, ~Confirmed) — first a daughter (b.~1926), then head of a 9-person household.
Age 14
b. ~1926
Female
Daughter
Born: Colorado
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Boulder-County, Colorado |
| Surname | Robinson |
| Given Name | Dorothy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Colorado |
| 1935 Residence (City) | Boulder |
| 1935 Residence (County) | Boulder |
| Additional Details | |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
| Township / Ward | Boulder |
| Est. Birth Year | ~1926 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Dorothy | Age | Birth yr |
|---|---|---|---|---|
| Mandine Robinson | Daughter | — | 12 | ~1928 |
| Ann Robinson | Daughter | — | 2 | ~1938 |
| Ada Robinson | Spouse | — | 37 | ~1903 |
| Gerald Robinson | Son | — | 8 | ~1932 |
| Edward Robinson | Head | — | 52 | ~1888 |
| Dick Robinson | Son | — | 10 | ~1930 |
| Dorothy Robinson | Daughter | — | 14 | ~1926 |
| Betty Robinson | Daughter | — | 16 | ~1924 |
| Bill Robinson | Son | — | 6 | ~1934 |
Census Appearances
1930
Boulder, Colorado
Daughter, age 4
Boulder, Colorado · implied b. ~1926 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Robenson |
| Given Name | Dorothy E. |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Kansas |
| Mother's Birthplace | Kansas |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1940
Boulder-County, Colorado
Daughter, age 14
Boulder-County, Colorado · implied b. ~1926 — 9 household members
| Surname | Robinson |
| Given Name | Dorothy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Colorado |
| 1935 Residence (City) | Boulder |
| 1935 Residence (County) | Boulder |
| Highest Grade | No 7 |
| 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 Dorothy Robinson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Dorothy Robinson
Daughter · 1940 · age 14 · b. ~1926 · Colorado
★ You are viewing this record
Sibling
Ann Robinson
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bill Robinson
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Betty Robinson
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mandine Robinson
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dick Robinson
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gerald Robinson
Sibling · 1940 · age 8
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 — Boulder-County, Colorado
Open full size
1940 US Federal Census — Boulder-County, Colorado
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00457-00655)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Florence August | 26 | Wife | Saleswoman | Iowa |
| 42 | Stella Monohan | 50 | Head | — | France |
| 43 | Sam Monohan | 29 | Son | Miner | Colorado |
| 44 | Timothy Monohan | 25 | Son | Truck Driver | Colorado |
| 45 | Mary Monohan | 13 | Daughter | — | Colorado |
| 46 | Grover Abbott | 57 | Head | Laborer | Kansas |
| 47 | Florence Abbott | 53 | Wife | — | Kansas |
| 48 | La Vere Abbott | 19 | Son | Laborer | Kansas |
| 49 | Bernice Abbott | 15 | Daughter | — | Kansas |
| 50 | Bernard Abbott | 12 | Son | — | Kansas |
| 51 | Bonnie Abbott | 10 | Daughter | — | Kansas |
| 52 | Arnold C. Perry | 41 | Head | Auto Mechanic | Washington |
| 53 | Elsie Perry | 34 | Wife | — | Oklahoma |
| 54 | William Lehunen | 73 | Father | — | Germany |
| 55 | Minnie Lehunen | 63 | Mother | — | Germany |
| 56 | Helen Schraw | 12 | Niece | — | Los Angeles |
| 57 | Ray Weaver | 53 | Head | Plasterer | Nebraska |
| 58 | Margaret Weaver | 44 | Wife | — | England |
| 59 | Myrtle Weaver | 22 | Daughter | Cooking | Colorado |
| 60 | Hazel Weaver | 20 | Daughter | Cooking | Colorado |
| 61 | Beatrice Weaver | 17 | Daughter | — | Colorado |
| 62 | Ray Weaver | 15 | Son | — | Colorado |
| 63 | Charles Weaver | 12 | Son | — | Colorado |
| 64 | Edward W. Robinson | 52 | Head | — | Kansas |
| 65 | Ada Robinson | 37 | Wife | — | Kentucky |
| 66 | Betty Robinson | 16 | Daughter | — | Colorado |
| 67 | Dorothy Robinson THIS PERSON | 14 | Daughter | — | Colorado |
| 68 | Mandine Robinson | 12 | Daughter | — | Colorado |
| 69 | Dick Robinson | 10 | Son | — | Colorado |
| 70 | Gerald Robinson | 8 | Son | — | Colorado |
| 71 | Bill Robinson | 6 | Son | — | Colorado |
| 72 | Ann Robinson | 2 | Daughter | — | Colorado |
| 73 | Clement Dunn | 72 | Head | — | Illinois |
| 74 | Alice Dunn | 55 | Wife | — | Colorado |
| 75 | Frank Dunn | 22 | Son | Laborer | Colorado |
| 76 | Paul Dunn | 28 | Son | Laborer | Colorado |
| 77 | Jenny Dunn | 20 | Daughter | Presser | Colorado |
| 78 | Sam Dunn | 14 | Son | — | Colorado |
| 79 | Clinton W. Zunkis | 40 | Head | Miner | So Dakota |
| 80 | Myrtle Zunkis | 31 | Wife | Manglework | Colorado |
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)