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Donald Clark — 1940 US Census Record

Model Tree available

1940 United States Federal Census · St.-Lawrence-County, New York

Our Model Tree links this Donald Clark across the 1920, 1930 and 1940 US Censuses in St.-Lawrence-County, New York (XGBoost, ~Confirmed), with identified parents Elmer & Roy — first a son (b.~1917), then head of a 4-person household.

Age 23 b. ~1917 Male Son Born: New York Single

1940 Census Record Details

Census Year1940
LocationSt.-Lawrence-County, New York
SurnameClark
Given NameDonald R
Relationship to HeadSon
SexM
Color / RaceWhite
Age23
Marital StatusSingle
BirthplaceNew York
1935 Residence (City)R
1935 Residence (County)St Lawrence
Additional Details
OccupationLaborer
IndustryFarm
Class of WorkerNP
Hours Worked90
Income (1939)288
Highest GradeNo 8
1935 ResidenceNew York
Birth StateNew York
Birth CountryUnited States
Birthplace (normalized)new york
OccupationLaborer
Township / WardPotsdam Town
Est. Birth Year~1917

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.

4 people recorded at the same address in the 1940 census.

Name Relation to head Relative to Donald Age Birth yr
Elmer Clark Head — 62 ~1878
Donald Clark Son — 23 ~1917
Harry Clark Son — 27 ~1913
Margaret Clark Spouse — 62 ~1878

Census Appearances

1920
St Lawrence, …
Son, age 1
St Lawrence, New York · implied b. ~1919 — 3 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Clark
Given Name Donald
Relationship to Head Son
Sex M
Color / Race White
Age 1
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
St Lawrence, …
Son, age 11
St Lawrence, New York · implied b. ~1919 — 8 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Clark
Given Name Donald R.
Relationship to Head Son
Sex M
Color / Race White
Age 11
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
St.-Lawrence-County, New …
Son, age 23
St.-Lawrence-County, New York · implied b. ~1917 — 4 household members
Surname Clark
Given Name Donald R
Relationship to Head Son
Sex M
Color / Race White
Age 23
Marital Status Single
Birthplace New York
1935 Residence (City) R
1935 Residence (County) St Lawrence
Occupation Laborer
Industry Farm
Class of Worker NP
Hours Worked 90
Income (1939) 288
Highest Grade No 8
1935 Residence New York
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.
Model Tree available
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 Elmer Clark (~0.92 confidence) and father Roy Clark (~0.92 confidence) and father Roy Clark (~0.92 confidence) and mother Margaret Clark (~0.92 confidence) and mother Mary Clark (~0.92 confidence) and mother May Clark (~0.92 confidence) and mother Nora Casey (~0.92 confidence). The pedigree spans 1 generation with 7 identified ancestors.
Show:
Gen 1 Parents confidence ≈ 0.92
Father
Elmer Clark
b. ~1878
Source father
● Household · direct · ~0.92
Father
Roy Clark
b. ~1892
Source father
● Household · direct · ~0.92
Father
Roy Clark
b. ~1893
Source father
● Household · direct · ~0.92
Mother
Margaret Clark
b. ~1878
Source mother
● Household · direct · ~0.92
Mother
Mary Clark
b. ~1890
Source mother
● Household · direct · ~0.92
Mother
May Clark
b. ~1890
Source mother
● Household · direct · ~0.92
Mother
Nora Casey
b. ~1862
Source mother
● Household · direct · ~0.92
This person
Anchor record
Donald Clark
Son · 1940 · age 23 · b. ~1917 · New York
★ You are viewing this record
Sibling
Harry Clark
Sibling · 1940 · 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

1940 US Federal Census — St.-Lawrence-County, New York Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-02771-00546)

Line Name Age Relation Occupation Birthplace
41 August Spruck 35 Head Laborer Germany
42 Florence Spruck 33 Housekeeper House Keeper New York
43 Roy Baker 35 Hired man Truck Driver New York
44 Karl Kohnle 82 Hired man Painter Germany
45 Gilbert Bronson 36 Hired man Truck Driver New York
46 Harry Jr Bronson 23 Hired man Truck Driver New York
47 Douglass Lafleur 19 Hired man Truck Driver New York
48 Betty G Keator 4 Lodger — New York
49 William H Helmer 44 Head Proprietor New York
50 Gladys A Helmer 43 Wife Cook Canada
51 Shirley M Helmer 13 Daughter — New York
52 Constance J Helmer 11 Daughter — New York
53 Barbara A Helmer 6 Daughter — New York
54 Mildred P Garrow 37 Head Farmer New York
55 Olive Wright 36 Sister — New York
56 James Wright 56 Brother-in-law Farm Hand New York
57 Joseph Wright 5 Nephew — New York
58 Elmer E Clark 62 Head Farmer New York
59 Margaret A Clark 62 Wife — Canada
60 Harry G Clark 27 Son Laborer New York
61 Donald R Clark THIS PERSON 23 Son Laborer New York
62 Paul F Murphy 33 Head Truck Driver New York
63 Mildred R Murphy 32 Wife — New York
64 Francis P Murphy 8 Son — New York
65 Jane E Murphy 6 Daughter — New York
66 Leo P Murray 29 Head Repairman New York
67 Clarissa X Murray 23 Wife — New York
68 John E Murray 2 Son — New York
69 William J Murray 1 Son — New York
70 Frank B Leonard 78 Head Farmer New York
71 Jessie S Pilon 70 Housekeeper House Keeper New York
72 Claude Brown 38 Hired man Hired Man New York
73 Maurice W Mace 24 Head Truck Driver New York
74 Daisy S Mace 23 Wife — New York
75 Lawrence Mace 1 Son — New York
76 Theron E Benson 48 Head Farmer New York
77 Lois F Benson 41 Wife — New York
78 William N Benson 22 Son Laborer New York
79 Esther (A) G Benson 17 Daughter — New York
80 William Billington 20 Hired man Hired Man New York

Search for Donald Clark

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Pedigree Summary

Donald + 1 sibling
Gen 1 · 7 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)

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