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John Coughlin — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Suffolk, Massachusetts
Our Model Tree links this John Coughlin across the 1930 and 1940 US Censuses in Suffolk, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1880), then head of a 8-person household.
Age 50
b. ~1880
Male
Head
Born: Irish Free State
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Suffolk, Massachusetts |
| Surname | Coughlin |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Irish Free State |
| Naturalization Status | Naturalized |
| Year of Immigration | 1870 |
| Age at First Marriage | 21 |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Additional Details | |
| Occupation | Plasterer |
| Industry | United Cork |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Gaelic |
| Home Owned/Rented | R |
| Home Value / Rent | 25 |
| Radio Set | R |
| Birthplace (normalized) | irish free state |
| Occupation | Plasterer |
| Township / Ward | Boston City |
| Est. Birth Year | ~1880 |
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.
8 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Marguerite Coughlin | Daughter | — | 8 | ~1922 |
| Elizabeth Coughlin | Spouse | — | 51 | ~1879 |
| Harold Coughlin | Son | — | 26 | ~1904 |
| William Coughlin | Son | — | 11 | ~1919 |
| James Coughlin | Son | — | 24 | ~1906 |
| Walter Coughlin | Son | — | 19 | ~1911 |
| John Coughlin | Head | — | 50 | ~1880 |
| Rose Coughlin | Daughter | — | 16 | ~1914 |
Census Appearances
1930
Suffolk, Massachusetts
Head, age 50
Suffolk, Massachusetts · implied b. ~1880 — 8 household members
| Surname | Coughlin |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Irish Free State |
| Naturalization Status | Naturalized |
| Year of Immigration | 1870 |
| Age at First Marriage | 21 |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Occupation | Plasterer |
| Industry | United Cork |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Gaelic |
| Home Owned/Rented | R |
| Home Value / Rent | 25 |
| Radio Set | R |
| Birthplace (normalized) | irish free state |
1940
Middlesex-County, Massachusetts
Head, age 57
Middlesex-County, Massachusetts · implied b. ~1883 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Coughlan |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | Irish Free State |
| 1935 Residence (City) | Somerville |
| 1935 Residence (County) | Middlesex |
| Naturalization Status | Naturalized |
| Occupation | Machine Oper. |
| Industry | Laundry |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1500 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birthplace (normalized) | irish free state |
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 John Coughlin across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Coughlin
Head · 1930 · age 50 · b. ~1880 · Massachusetts
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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:massachusettscensus00reel951:0797)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John Coughlin THIS PERSON | 50 | Head | Plasterer | Irish Free State |
| 2 | Elizabeth Coughlin | 51 | Wife | — | Irish Free State |
| 3 | Walter C Coughlin | 19 | Son | Chauffeur | Massachusetts |
| 4 | Harold F Coughlin | 26 | Son | Chauffeur | Massachusetts |
| 5 | James V Coughlin | 24 | Son | Chauffeur | Massachusetts |
| 6 | William Coughlin | 11 | Son | — | Massachusetts |
| 7 | Rose C Coughlin | 16 | Daughter | — | Massachusetts |
| 8 | Marguerite Coughlin | 8 | Daughter | — | Massachusetts |
| 9 | Leo C Mcfee | 37 | Head | Laborer | Massachusetts |
| 10 | Anna Mcfee | 43 | Wife | — | Scotland |
| 11 | Anna Mcfee | 14 | Daughter | — | Massachusetts |
| 12 | Margaret Mcfee | 11 | Daughter | — | Massachusetts |
| 13 | Virginia Mcfee | 9 | Daughter | — | Massachusetts |
| 14 | June Mcfee | 8 | Daughter | — | Massachusetts |
| 15 | Yona Mcfee | 5 | Daughter | — | Massachusetts |
| 16 | Frank Michaud | 42 | Head | Iron Molder | New Hampshire |
| 17 | Bertha Michaud | 37 | Wife | — | Massachusetts |
| 18 | Marie S Michaud | 4 | Daughter | — | Massachusetts |
| 19 | Madeline Michaud | 3 | Daughter | — | Massachusetts |
| 20 | Jean Michaud | 2 | Son | — | Massachusetts |
| 21 | John Kawa | 31 | Head | Truck Driver | Pennsylvania |
| 22 | Margaret Kawa | 28 | Wife | — | Pennsylvania |
| 23 | Rose Kawa | 2 | Daughter | — | Massachusetts |
| 24 | Eleanor Kawa | 1 | Daughter | — | Massachusetts |
| 25 | Mary Kawa | 0 | Daughter | — | Massachusetts |
| 26 | Michael Cummings | 50 | Head | Laborer | Irish Free State |
| 27 | Margaret Cummings | 51 | Wife | — | Irish Free State |
| 28 | James E Cummings | 23 | Son | Polisher | Massachusetts |
| 29 | Albert J Cummings | 19 | Son | Bus Boy | Massachusetts |
| 30 | Irene D Cummings | 15 | Daughter | — | Massachusetts |
| 31 | George E Cummings | 12 | Son | — | Massachusetts |
| 32 | Catherine Cummings | 9 | Daughter | — | Massachusetts |
| 33 | James Blackie | 78 | Boarder | — | New Hampshire |
| 34 | Frances Blackie | 75 | Boarder | — | Massachusetts |
| 35 | Owen Craig | 42 | Boarder | Steamfitter | Irish Free State |
| 36 | Harry Sherman | 45 | Head | Wood Turner | Russia |
| 37 | Rebecca Sherman | 44 | Wife | — | Russia |
| 38 | Clara Sherman | 19 | Daughter | — | Russia |
| 39 | Morris Sherman | 17 | Son | — | Massachusetts |
| 40 | Jennie Sherman | 11 | Daughter | — | Massachusetts |
| 41 | James H Murphy | 41 | Head | Laborer | Irish Free State |
| 42 | Hannah Murphy | 40 | Wife | — | Irish Free State |
| 43 | Margaret Murphy | 21 | Daughter | Marker | Massachusetts |
| 44 | Dorothy Murphy | 15 | Daughter | — | Massachusetts |
| 45 | Ella Lester | 46 | Head | — | Massachusetts |
| 46 | Margaret Lester | 22 | Daughter | Folder | Massachusetts |
| 47 | Charles E Lester | 23 | Son | — | Massachusetts |
| 48 | Marion Denby | 45 | Boarder | Housework | Massachusetts |
| 49 | Michael Mahel | 58 | Head | Steamfitter | Irish Free State |
| 50 | Annie Mahel | 57 | Wife | — | Irish Free State |
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)