MH
Mary Hayes — 1920 US Census Record
Model Tree available1920 United States Federal Census · Suffolk, Massachusetts
Our Model Tree links this Mary Hayes across the 1900, 1910 and 1920 US Censuses in Suffolk, Massachusetts (XGBoost, ~Confirmed), with identified parents Mary & Michael — first a daughter (b.~1898), then head of a 8-person household.
Age 22
b. ~1898
Female
Daughter
Born: Ireland
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Suffolk, Massachusetts |
| Surname | Hayes |
| Given Name | Mary A. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Ireland |
| Year of Immigration | 1895 |
| Naturalization Status | Alien |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Occupation | Clerk |
| Industry | General Electric |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Irish |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Occupation | Clerk |
| Township / Ward | Boston |
| Est. Birth Year | ~1898 |
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 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Hayes | Daughter | — | 22 | ~1898 |
| Nora Hayes | Daughter | — | 20 | ~1900 |
| Michael Hayes | Head | — | 52 | ~1868 |
| James Cotton | Other | — | 3 | ~1917 |
| Michael Hayes | Son | — | 29 | ~1891 |
| Richard Hayes | Son | — | 27 | ~1893 |
| Daniel Hayes | Son | — | 17 | ~1903 |
| Mary Hayes | Spouse | — | 50 | ~1870 |
Census Appearances
1900
Suffolk, Massachusetts
Daughter, age 3
Suffolk, Massachusetts · implied b. ~1897 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hayes |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Ireland |
| Birth Month | Dec |
| Birth Year | 1897 |
| Year of Immigration | 1898 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1910
Suffolk, Massachusetts
Daughter, age 12
Suffolk, Massachusetts · implied b. ~1898 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hayes |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Ireland |
| Year of Immigration | 1898 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1920
Suffolk, Massachusetts
Daughter, age 22
Suffolk, Massachusetts · implied b. ~1898 — 8 household members
| Surname | Hayes |
| Given Name | Mary A. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Ireland |
| Year of Immigration | 1895 |
| Naturalization Status | Alien |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Clerk |
| Industry | General Electric |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Irish |
| 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 (1900, 1910 and 1920) in Suffolk, Massachusetts, using XGBoost record linkage. Identified parents: mother Mary Hayes (~0.92 confidence) and father Michael Hayes (~0.92 confidence) and mother Mary Hayes (~0.92 confidence) and mother Mary Hayes (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Mary Hayes
b. ~1865
Source mother
● Household
· direct · ~0.92
Father
Michael Hayes
b. ~1868
Source father
● Household
· direct · ~0.92
Mother
Mary Hayes
b. ~1868
Source mother
● Household
· direct · ~0.92
Mother
Mary Hayes
b. ~1870
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Hayes
Daughter · 1920 · age 22 · b. ~1898 · Massachusetts
★ You are viewing this record
Sibling
Richard Hayes
Sibling · 1920 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Michael Hayes
Sibling · 1920 · age 29
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Nora Hayes
Sibling · 1920 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Daniel Hayes
Sibling · 1920 · age 17
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
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:1920:14thcensusofpopu728unit:0114)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Dennis F. Gleason | 34 | Head | Foreman | Massachusetts |
| 2 | Margaret J. Gleason | 34 | Wife | — | Massachusetts |
| 3 | Francis Gleason | 11 | Son | — | Massachusetts |
| 4 | Lawrence Gleason | 2 | Son | — | Massachusetts |
| 5 | Ellen T. Madden | 37 | Sister-in-law | Cook | Massachusetts |
| 6 | Richard J. Williams | 51 | Head | Fireman | Massachusetts |
| 7 | Elizabeth T. Williams | 57 | Wife | — | Massachusetts |
| 8 | Henrietta Williams | 19 | Daughter | — | Massachusetts |
| 9 | Louis C. Cook | 35 | Son-in-law | Clerk | Massachusetts |
| 10 | Richard Cook | 11 | Grand Son | — | Massachusetts |
| 11 | Hugh A. Mcmullen | 38 | Head | Doctor | Canada |
| 12 | Sarah J. Mcmullen | 35 | Wife | — | Massachusetts |
| 13 | George Mcfarland | 69 | Head | Music Teacher | Massachusetts |
| 14 | Anna A. Mcfarland | 73 | Wife | Music Teacher | New York |
| 15 | Frances L. Mcfarland | 17 | Daughter | Music Teacher | Massachusetts |
| 16 | Delphine G. Mcfarland | 12 | Son | — | Massachusetts |
| 17 | Howard S. Norton | 26 | Head | Asst Engineer | Maine |
| 18 | Elizabeth D. Norton | 24 | Wife | — | Maine |
| 19 | Margaret J. Norton | 2 | Daughter | — | Maine |
| 20 | Howard Jr. Norton | 0 | Son | — | Massachusetts |
| 21 | William C. Davis | 63 | Head | Superintendent | Rhode Island |
| 22 | Mary C. Davis | 45 | Wife | — | New York |
| 23 | Raymond W. Davis | 21 | Son | Embalmer | Rhode Island |
| 24 | Irene M. Lowe | 41 | Head | Nurse | Nova Scotia |
| 25 | Maud C. Macdonald | 24 | Sister | Clerk | Nova Scotia |
| 26 | Charles S. Alm | 58 | Head | Packer | Sweden |
| 27 | Lena A. Alm | 59 | Wife | — | Sweden |
| 28 | August G. Lanselone | 50 | Brother-in-law | Carpenter | Sweden |
| 29 | Simon Dondeau | 53 | Head | Brakeman | Nova Scotia |
| 30 | Alice A. Dondeau | 44 | Wife | — | New Brunswick |
| 31 | Harold Dondeau | 23 | Son | Clerk | Massachusetts |
| 32 | Herbert L. Dondeau | 21 | Son | Clerk | Massachusetts |
| 33 | Edward J. Dondeau | 19 | Son | Clerk | Massachusetts |
| 34 | Arthur C. Dondeau | 17 | Son | Messenger | Massachusetts |
| 35 | Frederick Dondeau | 14 | Son | — | Massachusetts |
| 36 | Marie E. Dondeau | 11 | Daughter | — | Massachusetts |
| 37 | Charles R. Dondeau | 9 | Son | — | Massachusetts |
| 38 | Alice E. Dondeau | 4 | Daughter | — | Massachusetts |
| 39 | Mary Dondeau | 2 | Daughter | — | Massachusetts |
| 40 | Michael Hayes | 52 | Head | Wood Cutter | Ireland |
| 41 | Mary Hayes | 50 | Wife | — | Ireland |
| 42 | Michael Hayes | 29 | Son | Laborer | Ireland |
| 43 | Richard Hayes | 27 | Son | Laborer | Ireland |
| 44 | Mary A. Hayes THIS PERSON | 22 | Daughter | Clerk | Ireland |
| 45 | Nora E. Hayes | 20 | Daughter | Packer | Massachusetts |
| 46 | Daniel Hayes | 17 | Son | Laborer | Massachusetts |
| 47 | James Cotton | 3 | Grand Son | — | Massachusetts |
| 48 | John D. Rodrigues | 65 | Head | Captain | West Indies |
| 49 | Ellen E. Rodrigues | 58 | Wife | Housekeeper | New Hampshire |
| 50 | John Perrone | 33 | Head | Help Machine | Italy |
Pedigree Summary
Mary + 4 siblings
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
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)