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Joseph Martin — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Mercer-County, New Jersey
Our Model Tree links this Joseph Martin across the 1920, 1930 and 1940 US Censuses in Mercer-County, New Jersey (XGBoost, ~Confirmed) — first a head (b.~1872), then head of a 7-person household.
Age 68
b. ~1872
Male
Head
Born: New Jersey
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Mercer-County, New Jersey |
| Surname | Martin |
| Given Name | Joseph |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 68 |
| Marital Status | Widowed |
| Birthplace | New Jersey |
| 1935 Residence (City) | Trenton City |
| 1935 Residence (County) | Mercer |
| Additional Details | |
| Occupation | Chemist |
| Industry | Trenton Pottery |
| Class of Worker | PW |
| Hours Worked | 40 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | Chemist |
| Township / Ward | Trenton City |
| Est. Birth Year | ~1872 |
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 Joseph | Age | Birth yr |
|---|---|---|---|---|
| Thomasina Geller | Daughter | — | 25 | ~1915 |
| Dolores Martin | Daughter | — | 29 | ~1911 |
| Joseph Martin | Head | — | 68 | ~1872 |
| Robert Geller | Other | — | 22 | ~1918 |
| Raymond Martin | Son | — | 36 | ~1904 |
| Frederick Martin | Son | — | 38 | ~1902 |
| Arthur Martin | Son | — | 33 | ~1907 |
Census Appearances
1920
Mercer, New …
Head, age 45
Mercer, New Jersey · implied b. ~1875 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Joseph |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | New Jersey |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Saggermaker |
| Industry | Pottery |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Irish |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1930
Mercer, New …
Head, age 56
Mercer, New Jersey · implied b. ~1874 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Joseph |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | New Jersey |
| Age at First Marriage | 21 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | New Jersey |
| Occupation | Sagger-maker |
| Industry | Pottery |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 3500 |
| Radio Set | R |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Mercer-County, New …
Head, age 68
Mercer-County, New Jersey · implied b. ~1872 — 7 household members
| Surname | Martin |
| Given Name | Joseph |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 68 |
| Marital Status | Widowed |
| Birthplace | New Jersey |
| 1935 Residence (City) | Trenton City |
| 1935 Residence (County) | Mercer |
| Occupation | Chemist |
| Industry | Trenton Pottery |
| Class of Worker | PW |
| Hours Worked | 40 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| 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 Joseph Martin across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Joseph Martin
Head · 1940 · age 68 · b. ~1872 · New Jersey
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Mercer-County, New Jersey
Open full size
1940 US Federal Census — Mercer-County, New Jersey
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02437-00050)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | William Tyrell | 63 | Roomer | Attendant | Ireland |
| 42 | Mary Skeels | 20 | Roomer | Stenographer | Vermont |
| 43 | John H. Emery | 60 | Head | Broker | New Jersey |
| 44 | Bella C. Emery | 54 | Wife | — | Pennsylvania |
| 45 | William Terll | 52 | Roomer | Attendant | Ireland |
| 46 | Joyce Spear | 35 | Roomer | Steno-Clerk | Pennsylvania |
| 47 | Alice Skeels | 38 | Roomer | Steno-Clerk | Pennsylvania |
| 48 | Jeanne Carlton | 27 | Roomer | Steno-Clerk | Vermont |
| 49 | Benjamin Wansforam|Wansforan | 53 | Head | Supt. | Pennsylvania |
| 50 | Helen E. Wansforam|Wansforan | 46 | Wife | — | New Jersey |
| 51 | Sarah Wansforam|Wansforan | 25 | Daughter | Cashier | New Jersey |
| 52 | Fred Wansforam|Wansforan | 22 | Son | Switch Board Operator | New Jersey |
| 53 | John Taylor | 58 | Roomer | Book Keeper | New Jersey |
| 54 | Camilla Gilbert | 55 | Head | — | New Jersey |
| 55 | Bert Gilbert | 22 | Son | Checker | New Jersey |
| 56 | Lois Gilbert | 20 | Daughter | Clerk | New Jersey |
| 57 | Albert Mills | 50 | Roomer | Accountant | New York |
| 58 | Constance Cook | 23 | Roomer | Clerk | Michigan |
| 59 | Grace Matlack | 31 | Roomer | Clerk | New Jersey |
| 60 | Matilda Mckee | 60 | Head | Lodging House Keeper | New Jersey |
| 61 | Joseph Chaney | 22 | Roomer | — | Pennsylvania |
| 62 | Phillip Brenshan | 21 | Roomer | — | New Jersey |
| 63 | Lewis Layton | 22 | Roomer | — | South Carolina |
| 64 | Chas Neimoth | 24 | Roomer | Radio Announcer | New York |
| 65 | Ann Neimoth | 22 | Roomer | Beautician | New York |
| 66 | Florence Goehrig | 52 | Head | — | New Jersey |
| 67 | Isabelle Goehrig | 17 | Daughter | — | New Jersey |
| 68 | Helen M. Sine | 39 | Roomer | Steno-Clerk | New Jersey |
| 69 | Mary Stradling | 79 | Head | — | New Jersey |
| 70 | Elizabeth Schermerhorn | 76 | Sister | — | New Jersey |
| 71 | Joseph Martin THIS PERSON | 68 | Head | Chemist | New Jersey |
| 72 | Frederick Martin | 38 | Son | Necktie Polisher | New Jersey |
| 73 | Raymond Martin | 36 | Son | Locksmith | New Jersey |
| 74 | Arthur Martin | 33 | Son | Assistant Manager | New Jersey |
| 75 | Dolores Martin | 29 | Daughter | — | New Jersey |
| 76 | Robert Geller | 22 | Son in law | Carpenter | New Jersey |
| 77 | Thomasina Geller | 25 | Daughter | Nurse | New Jersey |
| 78 | Louis Echingwold | 77 | Head | Tailor | New Jersey |
| 79 | Mary Echingwold | 77 | Wife | — | New Jersey |
| 80 | Erwin Detmark | 38 | Roomer | Sales Man | New Jersey |
Related Census Records
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)