HC
Helen Clark — 1940 US Census Record
Model Tree available1940 United States Federal Census · Pinellas-County, Florida
Our Model Tree links this Helen Clark across the 1920, 1930 and 1940 US Censuses in Pinellas-County, Florida (XGBoost, ~Confirmed), with identified parents Angie & Angie — first a daughter (b.~1903), then head of a 4-person household.
Age 37
b. ~1903
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Pinellas-County, Florida |
| Surname | Clark |
| Given Name | Helen |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | St. Petersburg |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | No C 4 |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | St Petersburg |
| Est. Birth Year | ~1903 |
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 Helen | Age | Birth yr |
|---|---|---|---|---|
| Helen Clark | Daughter | — | 37 | ~1903 |
| Washington Clark | Head | — | 70 | ~1870 |
| Fraser Clark | Son | — | 39 | ~1901 |
| Angie Clark | Spouse | — | 71 | ~1869 |
Census Appearances
1920
Pinellas, Florida
Daughter, age 16
Pinellas, Florida · implied b. ~1904 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Helen M |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Canada |
| Mother's Birthplace | Massachusetts |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Pinellas, Florida
Daughter, age 27
Pinellas, Florida · implied b. ~1903 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Helen M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Canada English |
| Mother's Birthplace | Massachusetts |
| Occupation | Secretary |
| Industry | Y.W.C.A. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Pinellas-County, Florida
Daughter, age 37
Pinellas-County, Florida · implied b. ~1903 — 4 household members
| Surname | Clark |
| Given Name | Helen |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | St. Petersburg |
| Class of Worker | 0 |
| Highest Grade | No C 4 |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
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 Helen Clark across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Angie Clark (~0.92 confidence) and mother Angie Clark (~0.92 confidence) and mother Annie Clark (~0.92 confidence) and father Washington Clark (~0.92 confidence) and father Washington Clark (~0.92 confidence) and father Washington Clark (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Angie Clark
b. ~1869
Source mother
● Household
· direct · ~0.92
Mother
Angie Clark
b. ~1869
Source mother
● Household
· direct · ~0.92
Mother
Annie Clark
b. ~1869
Source mother
● Household
· direct · ~0.92
Father
Washington Clark
b. ~1870
Source father
● Household
· direct · ~0.92
Father
Washington Clark
b. ~1870
Source father
● Household
· direct · ~0.92
Father
Washington Clark
b. ~1870
Source father
● Household
· direct · ~0.92
This person
Anchor record
Helen Clark
Daughter · 1940 · age 37 · b. ~1903 · Florida
★ You are viewing this record
Sibling
Fraser Clark
Sibling · 1940 · age 39
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 — Pinellas-County, Florida
Open full size
1940 US Federal Census — Pinellas-County, Florida
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00609-00012)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Lulu Solomonoff | 40 | daughter | Dancing Teacher | Austria |
| 42 | Betty Solomonoff | 10 | daughter | — | New York |
| 43 | Elizabeth Connell | 39 | Head | Owner | Virginia |
| 44 | Doris Connell | 17 | daughter | — | Georgia |
| 45 | Robert Connell | 11 | Son | — | Florida |
| 46 | Laura Simonis | 62 | Head | — | Pennsylvania |
| 47 | Alice Alder | 48 | Lodger | Instructor Of Nurses | Pennsylvania |
| 48 | Etta Miller | 65 | Lodger | Teacher - High School | New Hampshire |
| 49 | Katherine Reynolds | 66 | Lodger | — | Pennsylvania |
| 50 | John P. Calkins | 77 | Head | — | New York |
| 51 | Adelide Calkins | 70 | Wife | — | Tennessee |
| 52 | Washington Clark | 70 | Head | Carpenter | Edward Island |
| 53 | Angie Clark | 71 | Wife | — | Massachusetts |
| 54 | Fraser Clark | 39 | Son | Clerk - Post Office | Massachusetts |
| 55 | Helen Clark THIS PERSON | 37 | daughter | — | Massachusetts |
| 56 | Sofie Okland | 34 | Head | — | Norway |
| 57 | Karen Okland | 2 | daughter | — | New York |
| 58 | Edith Curry | 45 | Head | Maid | Massachusetts |
| 59 | Richard Curry | 14 | Son | — | N. Carolina |
| 60 | Philip Rose | 31 | Head | Yard Man | New York |
| 61 | Taizo Sone | 38 | Head | Part-Owner | Japan |
| 62 | Aiko Sone | 26 | Wife | Part-Owner | Massachusetts |
| 63 | Mary Bertelsen | 29 | Head | — | New York |
| 64 | J. G. Mithken | 64 | Head | — | Pennsylvania |
| 65 | Mary Mithken | 34 | daughter | — | Pennsylvania |
| 66 | Fred J. Kohn | 64 | Head | — | Ohio |
| 67 | Jennie Kohn | 59 | Wife | — | Virginia |
| 68 | Harold Graves | 36 | Head | Asst Manager | New York |
| 69 | Aris Graves | 32 | Wife | Hostess - Dinning Room | New York |
| 70 | Leon Graves | 70 | Father | Manager | New York |
| 71 | Emily Graves | 69 | Wife | — | New York |
| 72 | Robert G. Growley | 30 | Son-in-law | Cashier | New York |
| 73 | Maxin Growley | 27 | Wife | Waitress | Nebraska |
| 74 | Mattie Mcadoo | 56 | Mother-in-law | Hostess | New York |
| 75 | Lillian Condon | 56 | Lodger | Sales Clerk | California |
| 76 | Chas. O. West | 72 | Head | — | Ohio |
| 77 | Elizabeth West | 59 | Wife | — | Florida |
| 78 | Chas Goss | 75 | Head | — | Ohio |
| 79 | Emily Goss | 72 | Wife | — | New York |
| 80 | Anna Corbora | 66 | Head | — | Pennsylvania |
Pedigree Summary
Helen + 1 sibling
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)