MC
Mary Coughlin — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Essex-County, Massachusetts
Our Model Tree links this Mary Coughlin across the 1930 and 1940 US Censuses in Essex-County, Massachusetts (XGBoost, ~Confirmed) — first a daughter (b.~1914), then head of a 6-person household.
Age 26
b. ~1914
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Essex-County, Massachusetts |
| Surname | Coughlin |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Salem City |
| 1935 Residence (County) | Essex |
| Additional Details | |
| Occupation | Clerk |
| Industry | Telephone |
| Class of Worker | PW |
| Income (1939) | 900 |
| Highest Grade | H 4 |
| 1935 Residence | Same Place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Clerk |
| Township / Ward | Salem 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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Ann Coughlin | Daughter | — | 22 | ~1918 |
| James Coughlin | Son | — | 30 | ~1910 |
| Mary Coughlin | Daughter | — | 26 | ~1914 |
| Catherine Coughlin | Daughter | — | 27 | ~1913 |
| Thomas Coughlin | Son | — | 28 | ~1912 |
| Annie Coughlin | Head | — | 59 | ~1881 |
Census Appearances
1930
Essex, Massachusetts
Daughter, age 17
Essex, Massachusetts · implied b. ~1913 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Coughlin |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Irish Free State |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Essex-County, Massachusetts
Daughter, age 26
Essex-County, Massachusetts · implied b. ~1914 — 6 household members
| Surname | Coughlin |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Salem City |
| 1935 Residence (County) | Essex |
| Occupation | Clerk |
| Industry | Telephone |
| Class of Worker | PW |
| Income (1939) | 900 |
| Highest Grade | H 4 |
| 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 Mary Coughlin across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Coughlin
Daughter · 1940 · age 26 · b. ~1914 · Massachusetts
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Sibling
Catherine Coughlin
Sibling · 1940 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ann Coughlin
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Coughlin
Sibling · 1940 · age 30
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Coughlin
Sibling · 1940 · age 28
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-t0627-01589-01078)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mabel Bassett | 58 | Head | — | New York |
| 2 | James H. Bassett | 25 | Son | Laborer | Massachusetts |
| 3 | Ellen Thonja | 74 | Head | — | England |
| 4 | Adalard Trembly | 32 | Son-in-law | Laborer | Massachusetts |
| 5 | Mary Trembly | 37 | Wife | — | Massachusetts |
| 6 | Alice Trembly | 6 | Daughter | — | Massachusetts |
| 7 | William R. Condon | 42 | Head | Police Officer | Massachusetts |
| 8 | Florence Condon | 40 | Wife | — | Massachusetts |
| 9 | Raymond Condon | 15 | Son | — | Massachusetts |
| 10 | John Condon | 12 | Son | — | Massachusetts |
| 11 | Annie Coughlin | 59 | Head | — | Ireland |
| 12 | James J. Coughlin | 30 | Son | Operator | Massachusetts |
| 13 | Thomas M. Coughlin | 28 | Son | Operator | Massachusetts |
| 14 | Catherine Coughlin | 27 | Daughter | Clerk | Massachusetts |
| 15 | Mary E. Coughlin THIS PERSON | 26 | Daughter | Clerk | Massachusetts |
| 16 | Ann Coughlin | 22 | Daughter | Inspector | Massachusetts |
| 17 | Estelle Chartier | 47 | Head | Laborer | Massachusetts |
| 18 | Helen Chartier | 42 | Wife | — | Massachusetts |
| 19 | Emile Chartier | 19 | Son | — | Massachusetts |
| 20 | Janice Chartier | 13 | Daughter | — | Massachusetts |
| 21 | Mary Orange | 43 | Head | — | Massachusetts |
| 22 | Thomas J. Tracy | 42 | Head | Draftsman | Massachusetts |
| 23 | Bertha Tracy | 36 | Wife | Demonstrator | Massachusetts |
| 24 | Thomas J. Tracy | 14 | Son | — | Massachusetts |
| 25 | William Tracy | 11 | Son | — | Massachusetts |
| 26 | Grace E. Tracy | 5 | Daughter | — | Massachusetts |
| 27 | Joseph Tuslo | 28 | Head | Laborer | Massachusetts |
| 28 | Gracie Tuslo | 22 | Wife | — | Canada French |
| 29 | Constance Tuslo | 5 | Daughter | — | Massachusetts |
| 30 | Lewis Tuslo | 4 | Son | — | Massachusetts |
| 31 | George Cobb | 37 | Head | Truck Driver | Massachusetts |
| 32 | Harriette Cobb | 35 | Wife | Shipping Room | Massachusetts |
| 33 | Jane Cobb | 15 | Daughter | — | Massachusetts |
| 34 | Virginia Cobb | 4 | Daughter | — | Massachusetts |
| 35 | Armand Michaud | 29 | Head | Cook | Maine |
| 36 | Louise Michaud | 22 | Wife | — | Massachusetts |
| 37 | — | None | — | — | — |
| 38 | — | None | — | — | — |
| 39 | Manuel Silva | 28 | Head | Shipping | Azores |
| 40 | Jeanette Silva | 29 | Wife | Leather Worker | Massachusetts |
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)