JC
Joseph Cox — 1940 US Census Record
Model Tree available1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this Joseph Cox across the 1920, 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Stephen & Stephen — first a son (b.~1913), then head of a 5-person household.
Age 27
b. ~1913
Male
Son
Born: Rhode Island
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Cox |
| Given Name | Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Rhode Island |
| 1935 Residence (City) | Chelsea |
| Additional Details | |
| Occupation | Druggist |
| Industry | Drug store |
| Class of Worker | PW |
| Hours Worked | 80 |
| Income (1939) | 1248 |
| Highest Grade | H-4 |
| Birth State | Rhode Island |
| Birth Country | United States |
| Birthplace (normalized) | rhode island |
| Occupation | Druggist |
| Township / Ward | Chelsea |
| Est. Birth Year | ~1913 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Joseph | Age | Birth yr |
|---|---|---|---|---|
| Mary Cox | Spouse | — | 60 | ~1880 |
| Stephen Cox | Head | — | 55 | ~1885 |
| Mary Cox | Daughter | — | 21 | ~1919 |
| John Cox | Son | — | 23 | ~1917 |
| Joseph Cox | Son | — | 27 | ~1913 |
Census Appearances
1920
Suffolk, Massachusetts
Son, age 7
Suffolk, Massachusetts · implied b. ~1913 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cox |
| Given Name | Joseph S |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Rhode Island |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Rhode Island |
| Birth Country | United States |
| Birthplace (normalized) | rhode island |
1930
Suffolk, Massachusetts
Son, age 18
Suffolk, Massachusetts · implied b. ~1912 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cox |
| Given Name | Joseph S |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Rhode Island |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Rhode Island |
| Birth Country | United States |
| Birthplace (normalized) | rhode island |
1940
Suffolk-County, Massachusetts
Son, age 27
Suffolk-County, Massachusetts · implied b. ~1913 — 5 household members
| Surname | Cox |
| Given Name | Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Rhode Island |
| 1935 Residence (City) | Chelsea |
| Occupation | Druggist |
| Industry | Drug store |
| Class of Worker | PW |
| Hours Worked | 80 |
| Income (1939) | 1248 |
| Highest Grade | H-4 |
| Birth State | Rhode Island |
| Birth Country | United States |
| Birthplace (normalized) | rhode island |
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 Joseph Cox across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Stephen Cox (~0.92 confidence) and father Stephen Cox (~0.92 confidence) and father Stevens Cox (~0.92 confidence) and mother Mary Cox (~0.92 confidence) and mother Mary Cox (~0.92 confidence) and mother Mary Cox (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Stephen Cox
b. ~1882
Source father
● Household
· direct · ~0.92
Father
Stephen Cox
b. ~1885
Source father
● Household
· direct · ~0.92
Father
Stevens Cox
b. ~1884
Source father
● Household
· direct · ~0.92
Mother
Mary Cox
b. ~1878
Source mother
● Household
· direct · ~0.92
Mother
Mary Cox
b. ~1882
Source mother
● Household
· direct · ~0.92
Mother
Mary Cox
b. ~1880
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Joseph Cox
Son · 1940 · age 27 · b. ~1913 · Massachusetts
★ You are viewing this record
Sibling
John Cox
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Cox
Sibling · 1940 · age 21
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-t0627-01642-00238)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Anna M Cronan | 24 | Daughter | Teacher | Massachusetts |
| 2 | Katherine Cronan | 52 | Head | Teacher | Massachusetts |
| 3 | William B Hanley | 59 | Head | Police Officer | Massachusetts |
| 4 | Helen T Hanley | 49 | Wife | — | Massachusetts |
| 5 | Ann Marie Hanley | 8 | Daughter | — | Massachusetts |
| 6 | Elizabeth Clark | 79 | Mother-in-law | — | England |
| 7 | Nathan Schloss | 32 | Head | Hardware Clerk | Massachusetts |
| 8 | Bertha Schloss | 31 | Wife | — | Massachusetts |
| 9 | Marvin Schloss | 10 | Son | — | Massachusetts |
| 10 | Allan Schloss | 6 | Son | — | Massachusetts |
| 11 | Edward Friedland | 51 | Head | Painter | Russia |
| 12 | Sarah Friedland | 43 | Wife | — | Russia |
| 13 | Dorothy Friedland | 23 | Daughter | Teacher | Massachusetts |
| 14 | Marilyn Friedland | 10 | Daughter | — | Massachusetts |
| 15 | David Levy | 48 | Head | Asst Foreman | New York |
| 16 | Molly Levy | 35 | Wife | Men'S Neckwear Operator | Massachusetts |
| 17 | William Fred Baggs | 62 | Head | Carpenter | Newfoundland |
| 18 | Priscilla Baggs | 51 | Wife | Carpenter | Newfoundland |
| 19 | Muriel A Baggs | 26 | Daughter | Sales Girl | Massachusetts |
| 20 | Frank H Baggs | 19 | Son | Gas Station Attendant | Massachusetts |
| 21 | Mary L Baggs | 17 | Daughter | Sales Girl | Massachusetts |
| 22 | Joseph B Smith | 58 | Head | Laborer | Massachusetts |
| 23 | Sarah J Smith | 50 | Wife | — | England |
| 24 | T Caroline Johnson | 20 | Daughter | — | Massachusetts |
| 25 | Arthur G Eaves | 50 | Brother-in-law | Laborer | Massachusetts |
| 26 | William Moody | 40 | Head | Electrician | Massachusetts |
| 27 | Mary Moody | 36 | Wife | — | England |
| 28 | Margaret Moody | 14 | Daughter | — | Massachusetts |
| 29 | William Moody | 13 | Son | — | Massachusetts |
| 30 | Mary Moody | 11 | Daughter | — | Massachusetts |
| 31 | Warren L Moody | 2 | Son | — | Massachusetts |
| 32 | Stephen Cox | 55 | Head | — | Ireland |
| 33 | Mary Cox | 60 | Wife | — | Ireland |
| 34 | Joseph Cox THIS PERSON | 27 | Son | Druggist | Rhode Island |
| 35 | John Cox | 23 | Son | — | Massachusetts |
| 36 | Mary Cox | 21 | Daughter | — | Massachusetts |
| 37 | Frederick E Roberts | 27 | Head | Press Feeder | New Hampshire |
| 38 | Evelyn L Roberts | 23 | Wife | — | Newfoundland |
| 39 | Donald F Roberts | 3 | Son | — | Massachusetts |
| 40 | Beverly Roberts | 1 | Daughter | — | Massachusetts |
Pedigree Summary
Joseph + 2 siblings
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)