DC
Donald Clark — 1940 US Census Record
Model Tree available1940 United States Federal Census · Ulster-County, New York
Our Model Tree links this Donald Clark across the 1920, 1930 and 1940 US Censuses in Ulster-County, New York (XGBoost, ~Confirmed), with identified parents Leon & Grace — first a son (b.~1916), then head of a 3-person household.
Age 24
b. ~1916
Male
Son
Born: New York
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Ulster-County, New York |
| Surname | Clark |
| Given Name | Donald |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | Kingston City |
| 1935 Residence (County) | Ulster |
| Additional Details | |
| Highest Grade | Hs 3 |
| 1935 Residence | Same house |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Township / Ward | Kingston City |
| Est. Birth Year | ~1916 |
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 1940 census.
| Name | Relation to head | Relative to Donald | Age | Birth yr |
|---|---|---|---|---|
| Leon Clark | Head | — | 62 | ~1878 |
| Grace Clark | Spouse | — | 52 | ~1888 |
| Donald Clark | Son | — | 24 | ~1916 |
Census Appearances
1920
Ulster, New …
Son, age 3
Ulster, New York · implied b. ~1917 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Donald E |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1930
Ulster, New …
Son, age 14
Ulster, New York · implied b. ~1916 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clarke |
| Given Name | Donald |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Can Read/Write | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Ulster-County, New …
Son, age 24
Ulster-County, New York · implied b. ~1916 — 3 household members
| Surname | Clark |
| Given Name | Donald |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | Kingston City |
| 1935 Residence (County) | Ulster |
| Highest Grade | Hs 3 |
| 1935 Residence | Same house |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
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 Donald Clark across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Leon Clark (~0.92 confidence) and mother Grace Clark (~0.92 confidence) and mother Grace Clark (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Leon Clark
b. ~1878
Source father
● Household
· direct · ~0.92
Mother
Grace Clark
b. ~1889
Source mother
● Household
· direct · ~0.92
Mother
Grace Clark
b. ~1888
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Donald Clark
Son · 1940 · age 24 · b. ~1916 · New York
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Ulster-County, New York
Open full size
1940 US Federal Census — Ulster-County, New York
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-02794-00333)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Rose Kopp | 32 | Wife | — | Wisconsin |
| 2 | David Kopp | 4 | Son | — | New York |
| 3 | Leon Clark | 62 | Head | — | New York |
| 4 | Grace Clark | 52 | Wife | — | New York |
| 5 | Donald Clark THIS PERSON | 24 | Son | — | New York |
| 6 | Albert Reese | 46 | Head | — | New York |
| 7 | Helen Reese | 44 | Wife | — | Scotland |
| 8 | Helen E. Reese | 18 | Daughter | — | New York |
| 9 | Beverly Reese | 16 | Daughter | — | New York |
| 10 | Martha Taber | 59 | Head | — | New York |
| 11 | Ray L. Bremer | 45 | Head | Automobile Mechanic | New York |
| 12 | Lena Bremer | 42 | Wife | — | New York |
| 13 | Clayton Bremer | 17 | Son | — | New York |
| 14 | Matthew Peters | 34 | Head | Manager | New York |
| 15 | Helen M. Peters | 35 | Wife | — | New York |
| 16 | Thomas Mccullough | 36 | Head | Truck Driver | New York |
| 17 | Frances Mccullough | 35 | Wife | Floor Lady | New York |
| 18 | John Mccullough | 54 | Father | Laborer | New York |
| 19 | John Jr. Mccullough | 25 | Brother | Truck Driver | New York |
| 20 | Margaret Niles | 67 | Head | — | New York |
| 21 | Mildred Niles | 34 | Daughter | Music Teacher | New York |
| 22 | Alfred Barley | 53 | Head | Carpenter | New York |
| 23 | Mabel Barley | 50 | Wife | — | New York |
| 24 | Burton, Jerome Barley | 28 | Son-in-law | Driver | New York |
| 25 | Helen Barley | 25 | Daughter | — | New York |
| 26 | Harry Winchell | 37 | Head | Lineman | New York |
| 27 | Rose Winchell | 37 | Wife | — | New York |
| 28 | June Winchell | 10 | Daughter | — | New York |
| 29 | Bruce Winchell | 9 | Son | — | New York |
| 30 | Florence Winchell | 7 | Daughter | — | New York |
| 31 | William Wolff | 57 | Head | Janitor | New York |
| 32 | Emily C. Wolff | 51 | Wife | Assistant House Keeper | Bohemia |
| 34 | John V. Conroy | 46 | Head | — | New York |
| 35 | Marie Conroy | 45 | Wife | — | Maryland |
| 36 | John Jr. Conroy | 10 | Son | — | New York |
| 37 | Bridget Conroy | 85 | Mother | — | New York |
| 38 | Catherine O'Hara | 51 | Head | — | New York |
| 39 | Edmund O'Hara | 25 | Son | Waiter | New York |
| 40 | Leonard O'Hara | 24 | Son | Bell-Hop | New York |
Pedigree Summary
Donald
Gen 1 · 3 parents
~0.92
Max depth 4 (1900–1950 window)
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)