HC
Harry Clark — 1940 US Census Record
Model Tree available1940 United States Federal Census · Orleans-County, Louisiana
Our Model Tree links this Harry Clark across the 1920, 1930 and 1940 US Censuses in Orleans-County, Louisiana (XGBoost, ~Confirmed), with identified parents Henry & Louise — first a son (b.~1915), then head of a 4-person household.
Age 25
b. ~1915
Male
Son
Born: Louisiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Orleans-County, Louisiana |
| Surname | Clark |
| Given Name | Harry J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Louisiana |
| 1935 Residence (City) | New Orleans |
| 1935 Residence (County) | Orleans |
| Additional Details | |
| Occupation | Chemist |
| Industry | Sewerage and Water Board |
| Class of Worker | GW |
| Hours Worked | 39 |
| Income (1939) | 642 |
| Highest Grade | C 2 |
| 1935 Residence | Same House |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
| Occupation | Chemist |
| Township / Ward | New Orleans |
| Est. Birth Year | ~1915 |
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 Harry | Age | Birth yr |
|---|---|---|---|---|
| Harry Clark | Head | — | 52 | ~1888 |
| Bridget Smith | Other | — | 71 | ~1869 |
| Harry Clark | Son | — | 25 | ~1915 |
| Julia Clark | Spouse | — | 51 | ~1889 |
Census Appearances
Son, age 4
Orleans, Louisiana · implied b. ~1916 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Henry |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Louisiana |
| Father's Birthplace | Louisiana |
| Mother's Birthplace | Louisiana |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
1930
Orleans, Louisiana
Son, age 15
Orleans, Louisiana · implied b. ~1915 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Harry Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Louisiana |
| Father's Birthplace | Louisiana |
| Mother's Birthplace | Louisiana |
| Can Read/Write | Yes |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
1940
Orleans-County, Louisiana
Son, age 25
Orleans-County, Louisiana · implied b. ~1915 — 4 household members
| Surname | Clark |
| Given Name | Harry J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Louisiana |
| 1935 Residence (City) | New Orleans |
| 1935 Residence (County) | Orleans |
| Occupation | Chemist |
| Industry | Sewerage and Water Board |
| Class of Worker | GW |
| Hours Worked | 39 |
| Income (1939) | 642 |
| Highest Grade | C 2 |
| 1935 Residence | Same House |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
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 Harry Clark across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Henry James (~0.92 confidence) and mother Louise James (~0.92 confidence) and father Harry Clark (~0.92 confidence) and father Harry Clark (~0.92 confidence) and mother Julia Clark (~0.92 confidence) and mother Nettie Clark (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Henry James
b. ~1872
Source father
● Household
· direct · ~0.92
Mother
Louise James
b. ~1873
Source mother
● Household
· direct · ~0.92
Father
Harry Clark
b. ~1888
Source father
● Household
· direct · ~0.92
Father
Harry Clark
b. ~1889
Source father
● Household
· direct · ~0.92
Mother
Julia Clark
b. ~1889
Source mother
● Household
· direct · ~0.92
Mother
Nettie Clark
b. ~1894
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Harry Clark
Son · 1940 · age 25 · b. ~1915 · Louisiana
★ 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 — Orleans-County, Louisiana
Open full size
1940 US Federal Census — Orleans-County, Louisiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01434-00055)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | William Whitmore | 42 | Son | Office | Louisiana |
| 42 | Alice Whitmore | 38 | Daughter in law | — | Alabama |
| 43 | Helen Whitmore | 17 | Granddaughter | — | Louisiana |
| 44 | George Thorning | 40 | Head | Proprietor | Louisiana |
| 45 | Mildred Thorning | 38 | Wife | — | Louisiana |
| 46 | Audrey Thorning | 12 | Daughter | — | Louisiana |
| 47 | George Thorning | 10 | Son | — | Louisiana |
| 48 | William Ore | 60 | Father in law | — | Louisiana |
| 49 | Knollin Sancton | 49 | Head | Captain | Louisiana |
| 50 | Matthews Sancton | 48 | Wife | — | Louisiana |
| 51 | Sidney Thibodaux | 59 | Head | Farmer | Louisiana |
| 52 | Lillian Thibodaux | 52 | Wife | — | Louisiana |
| 53 | Roy Thibodaux | 34 | Son | File Clerk | Louisiana |
| 54 | Carol Paul Thibodaux | 23 | Son | Fireman | Louisiana |
| 55 | Carmen Thibodaux | 21 | Daughter | Stenographer | Louisiana |
| 56 | Norman Whitney | 31 | Head | Underwriter | Louisiana |
| 57 | Mary Alice Whitney | 29 | Wife | — | Louisiana |
| 58 | Barbara Ann Whitney | 5 | Daughter | — | Louisiana |
| 59 | Norman Lynn Whitney | 2 | Daughter | — | Louisiana |
| 60 | George W. Locourt | 41 | Head | Policeman | Louisiana |
| 61 | Elizabeth Locourt | 38 | Wife | — | Louisiana |
| 62 | Alvin Locourt | 40 | Son | Policeman | Louisiana |
| 63 | Agnes Locourt | 27 | Daughter in law | — | Louisiana |
| 64 | George Alvin Locourt | 3 | Grandson | — | Louisiana |
| 65 | Harry Clark | 52 | Head | Dock Engineer | Louisiana |
| 66 | Julia Clark | 51 | Wife | — | Louisiana |
| 67 | Harry J. Clark THIS PERSON | 25 | Son | Chemist | Louisiana |
| 68 | Bridget Smith | 71 | Mother in law | — | Northern Ireland |
| 69 | Walter Frein | 73 | Head | Fireman | Louisiana |
| 70 | Julia Frein | 72 | Wife | — | Louisiana |
| 71 | Walter J. Frein | 36 | Son | Watchman | Louisiana |
| 72 | William Frein | 35 | Son | Engineer | Louisiana |
| 73 | Ray Cormier | 40 | Son in law | Machine Operator | Louisiana |
| 74 | Elsie Cormier | 46 | Daughter | Operator | Louisiana |
| 75 | Charles Rantz | 63 | Head | Proprietor | Louisiana |
| 76 | Virginia Rantz | 62 | Wife | — | Louisiana |
| 77 | Susannah Thorning | 36 | Head | Druggist | Louisiana |
| 78 | John J. Ciutat | 37 | Brother | Carpenter | Louisiana |
| 79 | Willemeen Ciutat | 46 | Sister in law | — | Louisiana |
| 80 | Myrtle Ciutat | 22 | Niece | Stenographer | Louisiana |
Related Census Records
Pedigree Summary
Harry
Gen 1 · 6 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)