MH
Mary Hennessey — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Suffolk, Massachusetts
Our Model Tree links this Mary Hennessey across the 1920, 1930 and 1940 US Censuses in Suffolk, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1858), then head of a 4-person household.
Age 62
b. ~1858
Female
Head
Born: Ireland
Widowed
1920 Census Record Details
| Census Year | 1920 |
| Location | Suffolk, Massachusetts |
| Surname | Hennessey |
| Given Name | Mary A |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 62 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Year of Immigration | 1878 |
| Naturalization Status | Alien |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Township / Ward | City Of Boston |
| Est. Birth Year | ~1858 |
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.
4 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Patrick Hennessey | Son | — | 25 | ~1895 |
| Mary Hennessey | Head | — | 62 | ~1858 |
| James Hennessey | Son | — | 24 | ~1896 |
| Margaret Hennessey | Daughter | — | 27 | ~1893 |
Census Appearances
1920
Suffolk, Massachusetts
Head, age 62
Suffolk, Massachusetts · implied b. ~1858 — 4 household members
| Surname | Hennessey |
| Given Name | Mary A |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 62 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Year of Immigration | 1878 |
| Naturalization Status | Alien |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1930
Suffolk, Massachusetts
Other, age 73
Suffolk, Massachusetts · implied b. ~1857 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hennessey |
| Given Name | Mary |
| Relationship to Head | Mother |
| Sex | F |
| Color / Race | White |
| Age | 73 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1890 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read/Write | Yes |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1940
Suffolk-County, Massachusetts
Other, age 82
Suffolk-County, Massachusetts · implied b. ~1858 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hennessey |
| Given Name | Marguerite |
| Relationship to Head | mother |
| Sex | F |
| Color / Race | White |
| Age | 82 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| 1935 Residence (City) | Boston |
| 1935 Residence (County) | Suffolk |
| Naturalization Status | Naturalized |
| Highest Grade | No 4 |
| 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 Hennessey across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Hennessey
Head · 1920 · age 62 · b. ~1858 · Massachusetts
★ You are viewing this record
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:1920:14thcensusofpopu735unit:0382)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Wilda Crawford | 33 | Wife | None | Mass |
| 52 | Crawford | 5 | Son | None | Maine |
| 53 | Francis Casey | 51 | Head | Surveyor | Canada |
| 54 | Mary Casey | 46 | Wife | None | Ireland |
| 55 | Mildred Casey | 23 | Daughter | Bookkeeper | Mass |
| 56 | Warren Casey | 20 | Son | Receiving Clerk | Mass |
| 57 | Francis Casey | 18 | Son | Clerk | Mass |
| 58 | Hugh Casey | 15 | Son | Clerk | Mass |
| 59 | Frederick Casey | 13 | Son | None | Mass |
| 60 | Mary A Hennessey THIS PERSON | 62 | Head | None | Ireland |
| 61 | Margaret Hennessey | 27 | Daughter | Government Clerk | Ireland |
| 62 | Patrick Hennessey | 25 | Son | Golf Ball Mkr | Ireland |
| 63 | James Hennessey | 24 | Son | Boiler Maker | Ireland |
| 64 | Bridget Booth | 48 | Head | None | Ireland |
| 65 | James Booth | 26 | Son | Government | Mass |
| 66 | Madeline Booth | 22 | Daughter | Accountant | Mass |
| 67 | Margaret Booth | 20 | Daughter | Bookkeeper | Mass |
| 68 | Agnes Booth | 14 | Daughter | None | Mass |
| 69 | Daniel Maceachern | 25 | Head | Checker | Canada |
| 70 | Catherine Maceachern | 25 | Wife | None | Canada |
| 71 | Christina Maceachern | 3 | Daughter | None | Mass |
| 72 | Mary Clery | 24 | Lodger | Nurse | Mass |
| 73 | Mary Pinkham | 25 | Lodger | Typist | Maine |
| 74 | William Brown | 30 | Lodger | Laborer | Ireland |
| 75 | Allan Collins | 24 | Lodger | Carpenter | Canada |
| 76 | Santo Conti | 45 | Head | Shoemaker | Italy |
| 77 | Agnes Conti | 33 | Wife | None | Italy |
| 78 | Frances Conti | 14 | Daughter | None | Italy |
| 79 | Ella Conti | 10 | Daughter | None | Mass |
| 80 | Joseph Conti | 9 | Son | None | Mass |
| 81 | Annie Conti | 5 | Daughter | None | Italy |
| 82 | Annie Conti | 5 | Daughter | None | Mass |
| 83 | Madeline Conti | 3 | Daughter | None | Mass |
| 84 | Jennie Conti | 2 | Daughter | None | Mass |
| 85 | Dominick Constantino | 33 | Lodger | Laborer | Italy |
| 86 | Joseph Gastofon | 30 | Head | Shoemaker | Italy |
| 87 | Mary Gastofon | 28 | Wife | None | Italy |
| 88 | Frank Gastofon | 1 | Son | None | Mass |
| 89 | Charles Doherty | 55 | Head | Plasterer | Maine |
| 90 | Annie Doherty | 55 | Wife | None | Ireland |
| 91 | William Doherty | 23 | Son | Painter | Mass |
| 92 | Alice Doherty | 25 | Daughter | Saleswoman | Mass |
| 93 | Winifred Kelly | 38 | Head | Waitress | Canada |
| 94 | Mildred Kelly | 17 | Daughter | None | Mass |
| 95 | Ethel Kelly | 11 | Daughter | None | Mass |
| 96 | Catherine Sullivan | 48 | Head | Packer | Ireland |
| 97 | Martha Mccarthy | 38 | Lodger | Packer | Canada |
| 98 | Archie Jenness | 44 | Head | Machinist | New Hamp |
| 99 | Delphine Jenness | 41 | Wife | Laundress | Canada |
| 100 | George Mudgett | 80 | Head | Agent | New Hamp |
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)