WM
William Martin — 1940 US Census Record
Model Tree available1940 United States Federal Census · Essex-County, Massachusetts
Our Model Tree links this William Martin across the 1920, 1930 and 1940 US Censuses in Essex-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Joseph & Delia — first a son (b.~1914), then head of a 7-person household.
Age 26
b. ~1914
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Essex-County, Massachusetts |
| Surname | Martin |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Lawrence City |
| 1935 Residence (County) | Essex |
| Additional Details | |
| Occupation | Trucker |
| Industry | Textile |
| Class of Worker | PW |
| Hours Worked | 39 |
| Income (1939) | 400 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Trucker |
| Township / Ward | Lawrence City |
| Est. Birth Year | ~1914 |
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 William | Age | Birth yr |
|---|---|---|---|---|
| Elizabeth Martin | Daughter | — | 36 | ~1904 |
| Frances Martin | Daughter | — | 32 | ~1908 |
| Joseph Martin | Head | — | 65 | ~1875 |
| Nellie Murley | Other | — | 56 | ~1884 |
| Joseph Martin | Son | — | 31 | ~1909 |
| William Martin | Son | — | 26 | ~1914 |
| Delia Martin | Spouse | — | 56 | ~1884 |
Census Appearances
1920
Essex, Massachusetts
Son, age 5
Essex, Massachusetts · implied b. ~1915 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | William |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| 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 16
Essex, Massachusetts · implied b. ~1914 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | Office Boy |
| Industry | Town Office |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Essex-County, Massachusetts
Son, age 26
Essex-County, Massachusetts · implied b. ~1914 — 7 household members
| Surname | Martin |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Lawrence City |
| 1935 Residence (County) | Essex |
| Occupation | Trucker |
| Industry | Textile |
| Class of Worker | PW |
| Hours Worked | 39 |
| Income (1939) | 400 |
| Highest Grade | No 8 |
| 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 William Martin across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Joseph Martin (~0.92 confidence) and mother Delia Martin (~0.92 confidence) and mother Delia Martin (~0.92 confidence) and mother Ella Martin (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Joseph Martin
b. ~1875
Source father
● Household
· direct · ~0.92
Mother
Delia Martin
b. ~1884
Source mother
● Household
· direct · ~0.92
Mother
Delia Martin
b. ~1885
Source mother
● Household
· direct · ~0.92
Mother
Ella Martin
b. ~1885
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Martin
Son · 1940 · age 26 · b. ~1914 · Massachusetts
★ You are viewing this record
Sibling
Joseph Martin
Sibling · 1940 · age 31
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elizabeth Martin
Sibling · 1940 · age 36
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frances Martin
Sibling · 1940 · age 32
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 — 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-t0627-01583-00543)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Joseph Martin | 65 | Head | Spinner | Massachusetts |
| 42 | Delia Martin | 56 | Wife | — | Massachusetts |
| 43 | Frances Martin | 32 | Daughter | Warehouse | Massachusetts |
| 44 | Joseph Martin | 31 | Son | Warehouse | Massachusetts |
| 45 | William Martin THIS PERSON | 26 | Son | Trucker | Massachusetts |
| 46 | Elizabeth Martin | 36 | Daughter | Housekeeper | Massachusetts |
| 47 | Nellie Murley | 56 | Sister in law | Housekeeper | Massachusetts |
| 48 | Alexander Gagnon | 67 | Head | Janitor | Canada French |
| 49 | Eugenia Gagnon | 66 | Wife | — | Canada French |
| 50 | Eudore St. Cyr | 53 | Head | Weaver | Canada French |
| 51 | Lea St. Cyr | 55 | Wife | — | Canada French |
| 52 | Arthur St. Cyr | 34 | Son | Laborer | Massachusetts |
| 53 | Harry French | 64 | Head | Painter | Russia |
| 54 | Rebecca French | 54 | Wife | — | Russia |
| 55 | Frances French | 15 | Daughter | — | Massachusetts |
| 56 | Dorothy French | 11 | Daughter | — | Massachusetts |
| 57 | Abe Milstone | 77 | Father in law | — | Russia |
| 58 | Oscar Milstone | 45 | Brother in law | Painter | Russia |
| 59 | Raymond Violet | 26 | Head | Machinist | Massachusetts |
| 60 | Rita Violet | 26 | Wife | — | Massachusetts |
| 61 | Pauline Violet | 2 | Daughter | — | Massachusetts |
| 62 | Bertha Kay | 46 | Head | Saleslady | Russia |
| 63 | Maurice Kay | 24 | Son | Manager | Massachusetts |
| 64 | Lillian Kay | 21 | Daughter | Bookkeeper | Russia |
| 65 | Betty Kay | 10 | Daughter | — | Massachusetts |
| 66 | Nicholas Christakos | 47 | Head | Laborer | Greece |
| 67 | Effie Christakos | 37 | Wife | — | Greece |
| 68 | Peter Christakos | 14 | Son | — | Massachusetts |
| 69 | Christopher Christakos | 7 | Son | — | Massachusetts |
| 70 | Alan Christakos | 3 | Son | — | Massachusetts |
| 71 | Jacob Slotnick | 67 | Head | — | Poland |
| 72 | Elena Slotnick | 62 | Wife | — | Poland |
| 73 | Lenore Nadeau | 61 | Head | — | Canada French |
| 74 | Edith Nadeau | 57 | Wife | — | Canada French |
| 75 | George Nadeau | 29 | Daughter | Tie-Over | Massachusetts |
| 76 | Wilfred Nadeau | 23 | Son | Dresser | Massachusetts |
| 77 | Jeanette Nadeau | 24 | Daughter | — | Massachusetts |
| 78 | Michael Glynn | 58 | Head | Fireman | Ireland |
| 79 | Margaret Glynn | 57 | Wife | — | Ireland |
| 80 | James Glynn | 24 | Son | — | Massachusetts |
Related Census Records
Pedigree Summary
William + 3 siblings
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)