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Frank Cook — 1940 US Census Record
Model Tree available1940 United States Federal Census · Essex-County, Massachusetts
Our Model Tree links this Frank Cook across the 1920, 1930 and 1940 US Censuses in Essex-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Frank & Mary — first a head (b.~1912), then head of a 3-person household.
Age 28
b. ~1912
Male
Head
Born: Massachusetts
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Essex-County, Massachusetts |
| Surname | Cook |
| Given Name | Frank B. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Rowley |
| 1935 Residence (County) | Essex |
| Additional Details | |
| Occupation | Tool Grinder |
| Industry | Electrical Mfg. |
| Class of Worker | PW |
| Hours Worked | 30 |
| Income (1939) | 623 |
| Highest Grade | Hs 11 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Tool Grinder |
| Township / Ward | Rowley |
| Est. Birth Year | ~1912 |
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 Frank | Age | Birth yr |
|---|---|---|---|---|
| Elizabeth Cook | Daughter | — | 2 | ~1938 |
| Frank Cook | Head | — | 28 | ~1912 |
| Margarette Cook | Spouse | — | 36 | ~1904 |
Census Appearances
1920
Essex, Massachusetts
Son, age 7
Essex, Massachusetts · implied b. ~1913 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cook |
| Given Name | Frank B |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Essex, Massachusetts
Son, age 17
Essex, Massachusetts · implied b. ~1913 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cook |
| Given Name | Frank B |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Essex-County, Massachusetts
Head, age 28
Essex-County, Massachusetts · implied b. ~1912 — 3 household members
| Surname | Cook |
| Given Name | Frank B. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Rowley |
| 1935 Residence (County) | Essex |
| Occupation | Tool Grinder |
| Industry | Electrical Mfg. |
| Class of Worker | PW |
| Hours Worked | 30 |
| Income (1939) | 623 |
| Highest Grade | Hs 11 |
| 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 Cook across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Frank Cook (~0.92 confidence) and mother Mary Cook (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Frank Cook
b. ~1890
Source father
● Household
· direct · ~0.92
Mother
Mary Cook
b. ~1893
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Frank Cook
Head · 1940 · age 28 · b. ~1912 · Massachusetts
★ 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 — Essex-County, Massachusetts
Open full size
1940 US Federal Census — Essex-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01588-00711)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Carl B. Olsen | 17 | Son | — | Texas |
| 2 | Avice A. Olsen | 15 | Daughter | — | Texas |
| 3 | James D. Fennessey | 35 | Head | Laborer | Massachusetts |
| 4 | Lucy O. Fennessey | 23 | Wife | — | Massachusetts |
| 5 | Barbara E. Fennessey | 5 | Daughter | — | Massachusetts |
| 6 | Patricia A. Fennessey | 3 | Daughter | — | Massachusetts |
| 7 | Joanne M. Fennessey | 0 | Daughter | — | Massachusetts |
| 8 | George Oakes | 61 | Head | Contractor Carpenter | Maine |
| 9 | Fedora Oakes | 43 | Wife | — | Massachusetts |
| 10 | Sewell T. Johnson | 42 | Head | Clam Dealer | Massachusetts |
| 11 | Esther Johnson | 41 | Wife | — | Massachusetts |
| 12 | Sewell T. Jr. Johnson | 18 | Son | Clam Digger | Massachusetts |
| 13 | Corinne D. Johnson | 13 | Daughter | — | Massachusetts |
| 14 | Conrad L. Johnson | 8 | Son | — | Massachusetts |
| 15 | Frank B. Cook THIS PERSON | 28 | Head | Tool Grinder | Massachusetts |
| 16 | Margarette S. Cook | 36 | Wife | — | North Carolina |
| 17 | Elizabeth B. Cook | 2 | Daughter | — | Massachusetts |
| 18 | Charles L. Adams | 26 | Head | Clam Digger | Canada English |
| 19 | Dorothy M. Adams | 26 | Wife | — | New Hampshire |
| 20 | Charles R. Adams | 1 | Son | — | Massachusetts |
| 21 | Marshall F. Dewitt | 32 | Head | Laborer | Massachusetts |
| 22 | Edith L. Dewitt | 28 | Wife | — | Massachusetts |
| 23 | Marshall L. Dewitt | 9 | Son | — | Massachusetts |
| 24 | Ronald A. Dewitt | 8 | Son | — | Massachusetts |
| 25 | Charles N. Pickard | 72 | Head | — | Massachusetts |
| 26 | Ella B. Pickard | 68 | Wife | — | Massachusetts |
| 27 | Carlton C. Pickard | 37 | Son | Tree Climber | Massachusetts |
| 28 | Charles E. Faulkenham | 33 | Son-in-law | Shovel Operator | Maine |
| 29 | Ruth E. Faulkenham | 40 | Daughter | — | Massachusetts |
| 30 | Edward E. Mcintyre | 65 | Head | — | Massachusetts |
| 31 | Edith H. Mcintyre | 73 | Wife | — | Massachusetts |
| 32 | Forrest H. Jr. Parsons | 26 | Head | Laborer | Massachusetts |
| 33 | Eileen E. Parsons | 24 | Wife | Accountant | Massachusetts |
| 34 | Charles F. Todd | 47 | Head | Accountant | Massachusetts |
| 35 | Ruth C. Todd | 40 | Wife | — | Massachusetts |
| 36 | Barbara S. Todd | 15 | Daughter | — | Massachusetts |
| 37 | Phyllis D. Todd | 11 | Daughter | — | Massachusetts |
| 38 | John D. Perley | 37 | Head | Laborer | Massachusetts |
| 39 | Alice B. Perley | 36 | Wife | — | Massachusetts |
| 40 | John B. Perley | 11 | Son | — | Massachusetts |
Pedigree Summary
Frank
Gen 1 · 2 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)