MC
Mary Coughlin — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Middlesex, Massachusetts
Our Model Tree links this Mary Coughlin across the 1920, 1930 and 1940 US Censuses in Middlesex, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1869), then head of a 5-person household.
Age 51
b. ~1869
Female
Head
Born: New Hampshire
Widowed
1920 Census Record Details
| Census Year | 1920 |
| Location | Middlesex, Massachusetts |
| Surname | Coughlin |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 51 |
| Marital Status | Widowed |
| Birthplace | New Hampshire |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
| Township / Ward | Lowell City |
| Est. Birth Year | ~1869 |
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.
5 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Joseph Coughlin | Son | — | 22 | ~1898 |
| Laura Coughlin | Daughter | — | 23 | ~1897 |
| William Coughlin | Son | — | 21 | ~1899 |
| Mary Coughlin | Head | — | 51 | ~1869 |
| John Coughlin | Son | — | 24 | ~1896 |
Census Appearances
1920
Middlesex, Massachusetts
Head, age 51
Middlesex, Massachusetts · implied b. ~1869 — 5 household members
| Surname | Coughlin |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 51 |
| Marital Status | Widowed |
| Birthplace | New Hampshire |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
1930
Middlesex, Massachusetts
Other, age 65
Middlesex, Massachusetts · implied b. ~1865 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Coughlin |
| Given Name | Mary J |
| Relationship to Head | Mother |
| Sex | F |
| Color / Race | White |
| Age | 65 |
| Marital Status | Widowed |
| Birthplace | New Hampshire |
| Age at First Marriage | 21 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read/Write | Yes |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
1940
Middlesex-County, Massachusetts
Other, age 74
Middlesex-County, Massachusetts · implied b. ~1866 — 36 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Coughlin |
| Given Name | Mary |
| Relationship to Head | Patient |
| Sex | F |
| Color / Race | White |
| Age | 74 |
| Marital Status | Widowed |
| Birthplace | New Hampshire |
| 1935 Residence (City) | Lowell |
| 1935 Residence (County) | Middlesex |
| Occupation | Invalid |
| Industry | Hospital |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same Place |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
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 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Coughlin
Head · 1920 · age 51 · b. ~1869 · Massachusetts
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1920 US Federal Census — Middlesex, Massachusetts
Open full size
1920 US Federal Census — Middlesex, Massachusetts
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu711unit:1017)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ray Libby | 13 | Son | — | Massachusetts |
| 2 | Thomas Kearns | 35 | Head | Molder | Ireland |
| 3 | Margaret Kearns | 35 | Wife | — | Ireland |
| 4 | Margaret M Kearns | 5 | Daughter | — | Massachusetts |
| 5 | Milko Belle | 20 | Nephew | Machinist | Massachusetts |
| 6 | Margaret Belle | 18 | Niece | Stenographer | Massachusetts |
| 7 | Margaret Gralton | 62 | Head | — | Ireland |
| 8 | Nellie Gralton | 33 | Daughter | Cloth Folder | Massachusetts |
| 9 | Mary Coughlin THIS PERSON | 51 | Head | — | New Hampshire |
| 10 | John Coughlin | 24 | Son | Assistant Tester | Massachusetts |
| 11 | Laura Coughlin | 23 | Daughter | Drawing In | Massachusetts |
| 12 | Joseph Coughlin | 22 | Son | Beamer | Massachusetts |
| 13 | William Coughlin | 21 | Son | Cutter | Massachusetts |
| 14 | John Lyon | 33 | Head | Cloth Inspector | England |
| 15 | Susanna Lyon | 27 | Wife | — | England |
| 16 | Evelyn Lyon | 5 | Daughter | — | Massachusetts |
| 17 | John Jr Lyon | 3 | Son | — | Massachusetts |
| 18 | Joseph Green | 58 | Father-in-law | Twister | England |
| 19 | Mary Green | 52 | Mother-in-law | Cloth Folder | Scotland |
| 20 | Mary Parr | 79 | Grandmother | — | England |
| 21 | George Brock | 40 | Head | Assistant Treasurer | Vermont |
| 22 | Mildred Brock | 38 | Wife | — | Michigan |
| 23 | Charles Brock | 32 | Son | Chemical Clerk | Massachusetts |
| 24 | Anna Brock | 35 | Daughter-in-law | — | Massachusetts |
| 25 | Richard Brock | 4 | Grandson | — | Massachusetts |
| 26 | Albert Burnham | 80 | Boarder | Dentist | New Hampshire |
| 27 | Abbot Benner | 75 | Boarder | — | Maine |
| 28 | Louise Benner | 76 | Sister | — | New Hampshire |
| 29 | William Wilson | 41 | Head | Instructor | Maine |
| 30 | Ida Wilson | 41 | Wife | — | Maine |
| 31 | Ruth Cook | 20 | Niece | — | Maine |
| 32 | Donat Paquette | 32 | Head | Second Hand | Massachusetts |
| 33 | Amanda Paquette | 34 | Wife | — | Canada |
| 34 | Victor Paquette | 5 | Son | — | Massachusetts |
| 35 | Roland Paquette | 4 | Son | — | Massachusetts |
| 36 | James Paquette | 3 | Son | — | Massachusetts |
| 37 | Clarence Paquette | 1 | Son | — | Massachusetts |
| 38 | Ernest Paquette | 24 | Brother | Cutter | Massachusetts |
| 39 | William Rigby | 54 | Head | Overseer | England |
| 40 | Doris Rigby | 11 | Daughter | — | Massachusetts |
| 41 | William Jr Rigby | 9 | Son | — | Massachusetts |
| 42 | Ernest Ayon | 24 | Boarder | Housekeeper | England |
| 43 | William Ayon | 35 | Head | Repairman | England |
| 44 | Sadie Ayon | 35 | Wife | — | Nova Scotia |
| 45 | Edna Ayon | 5 | Daughter | — | Massachusetts |
| 46 | George Ayon | 2 | Son | — | Massachusetts |
| 47 | James Ayon | 37 | Head | Machinist | England |
| 48 | Blanche Ayon | 39 | Wife | — | England |
| 49 | Elsie Bennett | 58 | Head | — | England |
| 50 | Albert Bennett | 24 | Son | Second Hand | New Jersey |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)