MH
Mary Hayes — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Suffolk, Massachusetts
Our Model Tree links this Mary Hayes across the 1920, 1930 and 1940 US Censuses in Suffolk, Massachusetts (XGBoost, ~Confirmed) — first a spouse (b.~1882), then head of a 6-person household.
Age 38
b. ~1882
Female
Spouse
Born: Ireland
Married
1920 Census Record Details
| Census Year | 1920 |
| Location | Suffolk, Massachusetts |
| Surname | Hayes |
| Given Name | Mary M |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Ireland |
| Year of Immigration | 1904 |
| Naturalization Status | First papers filed |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Irish |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Township / Ward | South Boston |
| Est. Birth Year | ~1882 |
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 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Elizabeth Hayes | Daughter | — | 7 | ~1913 |
| Mary Hayes | Daughter | — | 3 | ~1917 |
| Josephine Hayes | Daughter | — | 11 | ~1909 |
| Joseph Hayes | Head | — | 38 | ~1882 |
| John Hayes | Son | — | 9 | ~1911 |
| Mary Hayes | Spouse | — | 38 | ~1882 |
Census Appearances
1920
Suffolk, Massachusetts
Spouse, age 38
Suffolk, Massachusetts · implied b. ~1882 — 6 household members
| Surname | Hayes |
| Given Name | Mary M |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Ireland |
| Year of Immigration | 1904 |
| Naturalization Status | First papers filed |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Irish |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1930
Suffolk, Massachusetts
Spouse, age 43
Suffolk, Massachusetts · implied b. ~1887 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hayes |
| Given Name | Margaret T |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1903 |
| Age at First Marriage | 23 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1940
Suffolk-County, Massachusetts
Spouse, age 54
Suffolk-County, Massachusetts · implied b. ~1886 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hayes |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Naturalization Status | Naturalized |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
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 Hayes 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 Hayes
Spouse · 1920 · age 38 · b. ~1882 · 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 — Suffolk, Massachusetts
Open full size
1920 US Federal Census — Suffolk, Massachusetts
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu733unit:0766)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Elizabeth Cochran | 60 | Wife | — | Ireland |
| 52 | Daniel J Cochran | 23 | Son | Laborer | Mass |
| 53 | Susan Hodge | 42 | Head | Inspector | Mass |
| 54 | Evelyn K Hodge | 15 | Daughter | Inspector | Mass |
| 55 | Larkin Somers | 42 | Head | Druggist | Maine |
| 56 | Agnes Somers | 36 | Wife | — | Maine |
| 57 | Joseph W Reynolds | 31 | Head | Chauffeur | Mass |
| 58 | Mary E Reynolds | 25 | Wife | — | Mass |
| 59 | Mary M Reynolds | 1 | Daughter | — | Mass |
| 60 | Florence H Reynolds | 0 | Daughter | — | Mass |
| 61 | Joseph C Hayes | 38 | Head | Teamster | Mass |
| 62 | Mary M Hayes THIS PERSON | 38 | Wife | — | Ireland |
| 63 | Josephine Hayes | 11 | Daughter | — | Mass |
| 64 | John Hayes | 9 | Son | — | Mass |
| 65 | Elizabeth Hayes | 7 | Daughter | — | Mass |
| 66 | Mary L Hayes | 3 | Daughter | — | Mass |
| 67 | Patrick J Gavin | 42 | Head | Laborer | Ireland |
| 68 | Delia J Gavin | 40 | Wife | — | Ireland |
| 69 | Stephen P Gavin | 10 | Son | — | Mass |
| 70 | Catherine Gavin | 8 | Daughter | — | Mass |
| 71 | Marion C Gavin | 6 | Daughter | — | Mass |
| 72 | Patrick J Gavin | 4 | Son | — | Mass |
| 73 | James F Gavin | 1 | Son | — | Mass |
| 74 | Richard Clark | 53 | Head | Waiter | Ireland |
| 75 | Mary E Clark | 51 | Wife | — | Canada |
| 76 | Nora F Roche | 38 | Head | Laundress | Ireland |
| 77 | Nora R Roche | 13 | Daughter | — | Mass |
| 78 | John Roche | 11 | Son | — | Mass |
| 79 | William Roche | 7 | Son | — | Mass |
| 80 | John J O'Brien | 36 | Head | Physician | Ireland |
| 81 | Margaret A O'Brien | 40 | Wife | — | Ireland |
| 82 | Roseanna O'Brien | 9 | Daughter | — | Mass |
| 83 | Margaret A O'Brien | 7 | Daughter | — | Mass |
| 84 | John J O'Brien | 5 | Son | — | Mass |
| 85 | Michael Cassidy | 45 | Head | Laborer | Ireland |
| 86 | Ellen Cassidy | 42 | Wife | — | Ireland |
| 87 | John Shea | 23 | Son in law | Electrician | Mass |
| 88 | Catherine Shea | 22 | Daughter | — | England |
| 89 | James L Reynolds | 58 | Head | Teamster | Mass |
| 90 | Margaret J Reynolds | 48 | Wife | — | Mass |
| 91 | Anna M Newcomb | 14 | Step daughter | — | Mass |
| 92 | Adrian Ward | 33 | Head | Police Officer | Tennessee |
| 93 | Jessie Ward | 27 | Wife | Inspector | Mass |
| 94 | James A Ward | 6 | Son | — | Tennessee |
| 95 | Joseph R Ward | 4 | Son | — | Mass |
| 96 | Charlotte Ward | 3 | Daughter | — | Mass |
| 97 | Theresa Kelly | 35 | Head | Housework | Mass |
| 98 | James J Kelly | 16 | Son | Office Boy | Mass |
| 99 | Francis W Kelly | 12 | Son | — | Mass |
| 100 | Madeline E Kelly | 5 | Daughter | — | Mass |
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)