CM
Charles Mason — 1940 US Census Record
Model Tree available1940 United States Federal Census · Essex-County, New Jersey
Our Model Tree links this Charles Mason across the 1920, 1930 and 1940 US Censuses in Essex-County, New Jersey (XGBoost, ~Confirmed), with identified parents Charles & John — first a head (b.~1907), then head of a 4-person household.
Age 33
b. ~1907
Male
Head
Born: New Jersey
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Essex-County, New Jersey |
| Surname | Mason |
| Given Name | Charles B |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | New Jersey |
| 1935 Residence (City) | Interlaken |
| 1935 Residence (County) | Monmouth |
| Additional Details | |
| Occupation | Lawyer |
| Industry | Private Practice |
| Class of Worker | PW |
| Hours Worked | 35 |
| Income (1939) | 4000 |
| Highest Grade | C 4 |
| 1935 Residence | New Jersey |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | Lawyer |
| Township / Ward | Millburn |
| Est. Birth Year | ~1907 |
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 Charles | Age | Birth yr |
|---|---|---|---|---|
| Charles Mason | Head | — | 33 | ~1907 |
| Florence Fries | Other | — | 41 | ~1899 |
| Charles Mason | Son | — | ~1940 | |
| Elizabeth Mason | Spouse | — | 32 | ~1908 |
Census Appearances
1920
Hudson, New …
Son, age 11
Hudson, New Jersey · implied b. ~1909 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mason |
| Given Name | Charles |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1930
Essex, New …
Son, age 22
Essex, New Jersey · implied b. ~1908 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mason |
| Given Name | Charles |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Occupation | Machine Operator |
| Industry | Pencil Factory |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Essex-County, New …
Head, age 33
Essex-County, New Jersey · implied b. ~1907 — 4 household members
| Surname | Mason |
| Given Name | Charles B |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | New Jersey |
| 1935 Residence (City) | Interlaken |
| 1935 Residence (County) | Monmouth |
| Occupation | Lawyer |
| Industry | Private Practice |
| Class of Worker | PW |
| Hours Worked | 35 |
| Income (1939) | 4000 |
| Highest Grade | C 4 |
| 1935 Residence | New Jersey |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
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 Charles Mason across 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage. Identified parents: father Charles Mason (~0.92 confidence) and father John Mason (~0.92 confidence) and mother Josephine Mason (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Charles Mason
b. ~1878
Source father
● Household
· direct · ~0.92
Father
John Mason
b. ~1879
Source father
● Household
· direct · ~0.92
Mother
Josephine Mason
b. ~1879
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Charles Mason
Head · 1940 · age 33 · b. ~1907 · New Jersey
★ 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, New Jersey
Open full size
1940 US Federal Census — Essex-County, New Jersey
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02336-00740)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Harry D Lyon | 38 | Head | Police Officer | New Jersey |
| 2 | Florence Lyon | 35 | Wife | — | New Jersey |
| 3 | Charles Lyon | 14 | Son | — | New Jersey |
| 4 | Charles B Mason THIS PERSON | 33 | Head | Lawyer | New Jersey |
| 5 | Elizabeth Dd Mason | 32 | Wife | — | Alabama |
| 6 | Charles B Jr Mason | 0 | Son | — | New Jersey |
| 7 | Florence D Fries | 41 | Servant | Servant | New York |
| 8 | Edward R Coswell | 39 | Head | Salesman | New York |
| 9 | Alice L D Coswell | 36 | Wife | — | New Jersey |
| 10 | Edward R Jr Coswell | 8 | Son | — | New Jersey |
| 11 | Fred W Coswell | 4 | Son | — | New Jersey |
| 12 | Clarence Petersson | 74 | In law | — | Brooklyn |
| 13 | Rebula O Carter | 20 | Servant | Servant | Virginia |
| 14 | Walter W Behnfield | 43 | Head | Real Estate Broker | Connecticut |
| 15 | Muriel M Behnfield | 42 | Wife | — | Michigan |
| 16 | Mary J Behnfield | 16 | Daughter | — | New Jersey |
| 17 | Thomas M Behnfield | 9 | Son | — | New Jersey |
| 18 | Samuel H Keat | 44 | Head | Electric Engineer | Baltimore |
| 19 | Elizabeth S Keat | 38 | Wife | — | Baltimore |
| 20 | Elizabeth Ann Keat | 13 | Daughter | — | Baltimore |
| 21 | Lester M Buni | 41 | Head | Commercial Artist | New Jersey |
| 22 | Louise Buni | 38 | Wife | — | Ohio |
| 23 | Billy Beaton Buni | 13 | Son | — | Ohio |
| 24 | Nancy Buni | 1 | Daughter | — | New Jersey |
| 25 | Eugene M C Burgess | 54 | Head | — | New Jersey |
| 26 | Margaret S Burgess | 45 | Wife | — | New Jersey |
| 27 | Gwendolyn Burgess | 14 | Daughter | — | New Jersey |
| 28 | Barbara F Burgess | 10 | Daughter | — | New Jersey |
| 29 | Neil D Carson | 38 | Servant | Servant | North Carolina |
| 30 | Mary D Donnely | 55 | Head | — | New Jersey |
| 31 | Carol D Donnely | 28 | Daughter | Social Worker | New Jersey |
| 32 | Francis A Donnely | 26 | Son | Dairy Inspector | New Jersey |
| 33 | Clifford Herman | 30 | Cousin | Accountant | New Jersey |
| 34 | Clinton Davidson | 59 | Head | Research Physicist | Illinois |
| 35 | Charlotte D Davidson | 56 | Wife | — | England |
| 36 | Owen Davidson | 28 | Son | Civil Engineer | Pittsburgh |
| 37 | James Davidson | 26 | Son | — | Pittsburgh |
| 38 | Elizabeth Davidson | 18 | Daughter | — | New Jersey |
| 39 | Richard Davidson | 16 | Son | — | New Jersey |
| 40 | Ernest E White | 34 | Head | Radio Artist | Flushing |
Pedigree Summary
Charles
Gen 1 · 3 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)