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Frank Clark — 1940 US Census Record
Model Tree available1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this Frank Clark across the 1920, 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Frank & Frank — first a son (b.~1904), then head of a 7-person household.
Age 36
b. ~1904
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Clark |
| Given Name | Frank H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Occupation | Teacher |
| Industry | Junior High |
| Class of Worker | PW |
| Hours Worked | 25 |
| Income (1939) | 3944 |
| Highest Grade | C-4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Teacher |
| Township / Ward | Boston |
| Est. Birth Year | ~1904 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Frank | Age | Birth yr |
|---|---|---|---|---|
| Mary Desmond | Daughter | — | 44 | ~1896 |
| Mary Clark | Head | — | 74 | ~1866 |
| Margaret Desmond | Other | — | 10 | ~1930 |
| Marie Desmond | Other | — | 12 | ~1928 |
| Thomas Desmond | Other | — | 56 | ~1884 |
| Charles Desmond | Other | — | 7 | ~1933 |
| Frank Clark | Son | — | 36 | ~1904 |
Census Appearances
1920
Suffolk, Massachusetts
Son, age 16
Suffolk, Massachusetts · implied b. ~1904 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Frank H. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Suffolk, Massachusetts
Son, age 26
Suffolk, Massachusetts · implied b. ~1904 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Frank H Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | Teacher |
| Industry | Junior High |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Son, age 36
Suffolk-County, Massachusetts · implied b. ~1904 — 7 household members
| Surname | Clark |
| Given Name | Frank H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston |
| 1935 Residence (County) | Suffolk |
| Occupation | Teacher |
| Industry | Junior High |
| Class of Worker | PW |
| Hours Worked | 25 |
| Income (1939) | 3944 |
| Highest Grade | C-4 |
| 1935 Residence | Same place |
| 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 Frank Clark across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Frank Clark (~0.92 confidence) and father Frank Clark (~0.92 confidence) and mother Mary Clark (~0.92 confidence) and mother Mary Clark (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Frank Clark
b. ~1865
Source father
● Household
· direct · ~0.92
Father
Frank Clark
b. ~1866
Source father
● Household
· direct · ~0.92
Mother
Mary Clark
b. ~1866
Source mother
● Household
· direct · ~0.92
Mother
Mary Clark
b. ~1866
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Frank Clark
Son · 1940 · age 36 · b. ~1904 · Massachusetts
★ You are viewing this record
Sibling
Mary Desmond
Sibling · 1940 · age 44
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 — Suffolk-County, Massachusetts
Open full size
1940 US Federal Census — Suffolk-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01679-00136)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Frank Cataruis | 50 | Head | Policeman | Massachusetts |
| 2 | Lillian Cataruis | 47 | Wife | — | Massachusetts |
| 3 | Rita Cataruis | 15 | Daughter | — | Massachusetts |
| 4 | Augustus Regels | 63 | Head | Leather Worker | Massachusetts |
| 5 | Fanny Regels | 58 | Wife | — | Maine |
| 6 | Charlotte Regels | 30 | Daughter | Teacher | Massachusetts |
| 7 | Howard Pomeroy | 40 | Head | Clergyman | Massachusetts |
| 8 | Mildred Pomeroy | 42 | Wife | — | Massachusetts |
| 9 | Russell Pomeroy | 12 | Son | — | Massachusetts |
| 10 | Eleanor Pomeroy | 2 | Daughter | — | Massachusetts |
| 11 | John Taylor | 70 | Head | Hatter | Massachusetts |
| 12 | Jane Taylor | 70 | Wife | — | Rhode Island |
| 13 | Patrick J. Shea | 80 | Head | — | Irish Free State |
| 14 | Catherine Shea | 76 | Wife | — | Irish Free State |
| 15 | Mary C. Shea | 38 | Daughter | Typist | Massachusetts |
| 16 | Catherine Shea | 22 | Daughter | Stenographer | Massachusetts |
| 17 | John J. Murray | 50 | Head | Lawyer | Massachusetts |
| 18 | Silvia Murray | 40 | Sister | Teacher | Massachusetts |
| 19 | Timothy Shea | 77 | Nephew | — | Massachusetts |
| 20 | Mary J. Clark | 74 | Head | — | Massachusetts |
| 21 | Thomas M. Desmond | 56 | Son-in-law | Purchasing Agent | Massachusetts |
| 22 | Mary C. Desmond | 44 | Daughter | — | Massachusetts |
| 23 | Marie Desmond | 12 | Granddaughter | — | Massachusetts |
| 24 | Margaret Desmond | 10 | Granddaughter | — | Massachusetts |
| 25 | Charles Desmond | 7 | Grandson | — | Massachusetts |
| 26 | Frank H. Clark THIS PERSON | 36 | Son | Teacher | Massachusetts |
| 27 | John J. Hurley | 80 | Head | — | Irish Free State |
| 28 | Ellen T. Hurley | 80 | Wife | — | Irish Free State |
| 29 | Anne E. Fitzgerald | 84 | Head | — | Irish Free State |
| 30 | Mary M. Fitzgerald | 51 | Daughter | Teacher | Massachusetts |
| 31 | Martin F. Craffey | 45 | Head | — | Massachusetts |
| 32 | Catherine C. Craffey | 55 | Sister | Telephone Operator | Massachusetts |
| 33 | Catherine Craffey | 77 | Mother | — | Irish Free State |
| 34 | Mary M. Clerk | 45 | Head | Teacher | Massachusetts |
| 35 | Carl Wagelin | 47 | Head | — | Germany |
| 36 | Martha Wagelin | 79 | Wife | — | Norway |
| 37 | Harry M. Wagelin | 52 | Son | — | Massachusetts |
| 38 | Martha Doyle | 48 | Daughter | — | Massachusetts |
| 39 | Vivian V. Doyle | 30 | Granddaughter | Manager | Canada |
| 40 | Judson C. Doyle | 20 | Grandson | — | Massachusetts |
Pedigree Summary
Frank + 1 sibling
Gen 1 · 4 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)