MC
Mary Coughlin — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Suffolk, Massachusetts
Our Model Tree links this Mary Coughlin across the 1920 and 1930 US Censuses in Suffolk, Massachusetts (XGBoost, ~Confirmed) — first a daughter (b.~1917), then head of a 11-person household.
Age 13
b. ~1917
Female
Daughter
Born: Massachusetts
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Suffolk, Massachusetts |
| Surname | Coughlin |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Boston City |
| Est. Birth Year | ~1917 |
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.
11 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Joseph Coughlin | Son | — | 16 | ~1914 |
| Frank Coughlin | Son | — | 19 | ~1911 |
| Mary Coughlin | Spouse | — | 40 | ~1890 |
| George Coughlin | Son | — | 5 | ~1925 |
| Edward Coughlin | Son | — | 11 | ~1919 |
| Veronica Coughlin | Daughter | — | 6 | ~1924 |
| Mary Coughlin | Daughter | — | 13 | ~1917 |
| Virginia Coughlin | Daughter | — | ~1930 | |
| Margaret Coughlin | Daughter | — | 10 | ~1920 |
| Gerard Coughlin | Son | — | 15 | ~1915 |
| Frank Coughlin | Head | — | 42 | ~1888 |
Census Appearances
1920
Suffolk, Massachusetts
Daughter, age 3
Suffolk, Massachusetts · implied b. ~1917 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Coughlin |
| Given Name | Mary M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Suffolk, Massachusetts
Daughter, age 13
Suffolk, Massachusetts · implied b. ~1917 — 11 household members
| Surname | Coughlin |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Can Read/Write | Yes |
| 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 (1920 and 1930) in Suffolk, Massachusetts, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Coughlin
Daughter · 1930 · age 13 · b. ~1917 · Massachusetts
★ You are viewing this record
Sibling
George Coughlin
Sibling · 1930 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frank Coughlin
Sibling · 1930 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Coughlin
Sibling · 1930 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Virginia Coughlin
Sibling · 1930 · age
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Coughlin
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Veronica Coughlin
Sibling · 1930 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gerard Coughlin
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Coughlin
Sibling · 1930 · age 11
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
1930 US Federal Census — Suffolk, Massachusetts
Open full size
1930 US Federal Census — Suffolk, Massachusetts
Page Contents
50 people indexed on this census page (ia:1930:massachusettscensus00reel948:0124)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Bertha Rydsma | 18 | Wife | — | Connecticut |
| 52 | Peter Jr. Rydsma | 2 | Son | — | Florida |
| 53 | Margaret Rydsma | 1 | Daughter | — | Massachusetts |
| 54 | Ernest Brown | 55 | Boarder | Fireman | Massachusetts |
| 55 | Ernest E. Brown | 15 | Boarder | — | Connecticut |
| 56 | Arthur Brown | 12 | Boarder | — | Connecticut |
| 57 | Wallace Campbell | 44 | Head | Laundry Worker | Massachusetts |
| 58 | Florence Campbell | 45 | Wife | — | Massachusetts |
| 59 | Florence Campbell | 20 | Daughter | Laundry Worker | Massachusetts |
| 60 | John Campbell | 15 | Son | — | Massachusetts |
| 61 | Edward Campbell | 13 | Son | — | Massachusetts |
| 62 | Mary Campbell | 6 | Daughter | — | Massachusetts |
| 63 | John Gillis | 31 | Head | Salesman | Massachusetts |
| 64 | Gertrude Foley | 29 | Boarder | Housekeeper | Massachusetts |
| 65 | John Daley | 93 | Boarder | — | Ireland |
| 66 | Mildred Daley | 22 | Boarder | Stenographer | Massachusetts |
| 67 | H. Ellen Collins | 59 | Head | Public Market | Ireland |
| 68 | Bridget Wall | 65 | Head | — | Ireland |
| 69 | William Brown | 31 | Son | Peddler | Massachusetts |
| 70 | George Arcand | 25 | Head | Cook | Rhode Island |
| 71 | Mary Arcand | 20 | Wife | — | Rhode Island |
| 72 | George Arcand | 2 | Son | — | Rhode Island |
| 73 | James H. Hall | 61 | Head | Laborer | Massachusetts |
| 74 | Bernard J. Mcfee | 23 | Partner | Stenotype | Massachusetts |
| 75 | Mary Mcfee | 22 | Wife | — | Massachusetts |
| 76 | Bernard M. Mcfee | 0 | Son | — | Massachusetts |
| 77 | Francis Kenney | 26 | Head | Chauffeur | Massachusetts |
| 78 | Velma Kenney | 23 | Wife | — | Massachusetts |
| 79 | Francis R. Kenney | 1 | Son | — | Massachusetts |
| 80 | Thomas R. Kenney | 25 | Head | Chauffeur | Massachusetts |
| 81 | Ruth C. Kenney | 29 | Sister | Clerk | Massachusetts |
| 82 | Andrew Coyle | 67 | Head | — | Ireland |
| 83 | Bridget Coyle | 65 | Wife | — | Ireland |
| 84 | Thomas Coyle | 32 | Son | Laborer | Massachusetts |
| 85 | Edward Coyle | 29 | Son | Chauffeur | Massachusetts |
| 86 | Martin J. Coughlin | 44 | Head | House Officer | Massachusetts |
| 87 | Agnes Coughlin | 40 | Wife | — | Massachusetts |
| 88 | Joseph Casey | 20 | Adopted Son | — | Massachusetts |
| 89 | Henry Casey | 14 | Adopted Son | — | Massachusetts |
| 90 | Frank A. Coughlin | 42 | Head | Chauffeur | Massachusetts |
| 91 | Mary A. Coughlin | 40 | Wife | — | Massachusetts |
| 92 | Frank F. Coughlin | 19 | Son | Trimmer | Massachusetts |
| 93 | Joseph Coughlin | 16 | Son | — | Massachusetts |
| 94 | Gerard Coughlin | 15 | Son | — | Massachusetts |
| 95 | Mary Coughlin THIS PERSON | 13 | Daughter | — | Massachusetts |
| 96 | Edward Coughlin | 11 | Son | — | Massachusetts |
| 97 | Margaret Coughlin | 10 | Daughter | — | Massachusetts |
| 98 | Veronica Coughlin | 6 | Daughter | — | Massachusetts |
| 99 | George Coughlin | 5 | Son | — | Massachusetts |
| 100 | Virginia Coughlin | 0 | Daughter | — | Massachusetts |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)