MC
Mary Connelly — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Essex, Massachusetts
Our Model Tree links this Mary Connelly across the 1920, 1930 and 1940 US Censuses in Essex, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1866), then head of a 2-person household.
Age 54
b. ~1866
Female
Head
Born: Ireland
Widowed
1920 Census Record Details
| Census Year | 1920 |
| Location | Essex, Massachusetts |
| Surname | Connelly |
| Given Name | Mary |
| Relationship to Head | head |
| Sex | F |
| Color / Race | White |
| Age | 54 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Year of Immigration | 1883 |
| Naturalization Status | First papers filed |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Occupation | Weaver |
| Industry | Cotton Mill |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Birth Country | Ireland |
| Year of Naturalization | 1897 |
| Birthplace (normalized) | ireland |
| Occupation | Weaver |
| Township / Ward | Lawrence Part Of |
| Est. Birth Year | ~1866 |
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.
2 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Connelly | Head | — | 54 | ~1866 |
| Mary Connelly | Daughter | — | 24 | ~1896 |
Census Appearances
1920
Essex, Massachusetts
Head, age 54
Essex, Massachusetts · implied b. ~1866 — 2 household members
| Surname | Connelly |
| Given Name | Mary |
| Relationship to Head | head |
| Sex | F |
| Color / Race | White |
| Age | 54 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Year of Immigration | 1883 |
| Naturalization Status | First papers filed |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Weaver |
| Industry | Cotton Mill |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Birth Country | Ireland |
| Year of Naturalization | 1897 |
| Birthplace (normalized) | ireland |
1930
Essex, Massachusetts
Other, age 64
Essex, Massachusetts · implied b. ~1866 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Connelly |
| Given Name | Mary |
| Relationship to Head | servant |
| Sex | F |
| Color / Race | White |
| Age | 64 |
| Marital Status | Single |
| Birthplace | Ireland |
| Naturalization Status | Alien |
| Year of Immigration | 1890 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | cook |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1940
Essex-County, Massachusetts
Other, age 71
Essex-County, Massachusetts · implied b. ~1869 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Connolly |
| Given Name | Mary |
| Relationship to Head | Inmate |
| Sex | F |
| Color / Race | White |
| Age | 71 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| 1935 Residence (City) | Lawrence City |
| 1935 Residence (County) | Essex |
| Naturalization Status | First papers filed |
| 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 Connelly 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 Connelly
Head · 1920 · age 54 · b. ~1866 · 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 — Essex, Massachusetts
Open full size
1920 US Federal Census — Essex, Massachusetts
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu693unit:0205)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Mansour | 32 | head | Section Hand | Syria |
| 52 | Nellie | 25 | wife | Spinner | Syria |
| 53 | Tafic | 22 | lodger | Doffer | Syria |
| 54 | John Gabriel | 44 | head | Doffer | Syria |
| 55 | Sam Gabriel | 19 | son | Drawing-In | Syria |
| 56 | Habby Ramy | 39 | head | Trucker | Syria |
| 57 | Mary Ramy | 27 | wife | Weaver | Syria |
| 58 | Salma Ramy | 5 | daughter | None | Massachusetts |
| 59 | Victoria Ramy | 2 | daughter | None | Massachusetts |
| 60 | Joseph Biletsky | 43 | head | Paper Maker | Lithuania |
| 61 | Catherine Biletsky | 36 | wife | None | Lithuania |
| 62 | Mary Biletsky | 10 | daughter | None | Massachusetts |
| 63 | John Biletsky | 8 | son | None | Massachusetts |
| 64 | Peter Biletsky | 5 | son | None | Massachusetts |
| 65 | Mary Powers | 39 | head | None | Massachusetts |
| 66 | Margaret Powers | 38 | sister | None | Massachusetts |
| 67 | Frank Powers | 35 | brother | In Service | Massachusetts |
| 68 | Arthur Oxford | 54 | head | Hostler | England |
| 69 | Mary Oxford | 48 | wife | Housekeeper | Ireland |
| 70 | Mary E. Oxford | 17 | daughter | Yarn Winder | Massachusetts |
| 71 | William Oxford | 15 | son | Office Boy | Massachusetts |
| 72 | William Chilivichus | 31 | head | Bobbin Hand | Lithuania |
| 73 | Julia Chilivichus | 25 | wife | None | Lithuania |
| 74 | Peter Chilivichus | 1 | son | None | Massachusetts |
| 75 | Alex Ambrozevicius | 25 | lodger | Worker | Lithuania |
| 76 | Mary Siedvicz | 31 | lodger | Spinner | Lithuania |
| 77 | Mary Connelly THIS PERSON | 54 | head | Weaver | Ireland |
| 78 | Mary Connelly | 24 | daughter | Trucker | Massachusetts |
| 79 | Mike Ramy | 49 | head | None | Syria |
| 80 | Martha Ramy | 47 | wife | None | Syria |
| 81 | Mary Jeremiah | 24 | daughter | None | Syria |
| 82 | Amelia Ramy | 25 | son | None | Syria |
| 83 | Anthony Jeremiah | 25 | son-in-law | Trucker | Syria |
| 84 | Yvonne Jeremiah | 3 | grand-daughter | None | Massachusetts |
| 85 | Mary Jeremiah | 2 | grand-daughter | None | Massachusetts |
| 86 | Martha Jeremiah | 0 | grand-daughter | None | Massachusetts |
| 87 | Joseph Salmon | 65 | head | Cloth Finisher | Syria |
| 88 | John Salmon | 37 | son | Trucker | Syria |
| 89 | Mary Salmon | 32 | daughter | Cotton Mill | Syria |
| 90 | Peter Willis | 28 | cousin | Back Tender | Syria |
| 91 | Daniel Donovan | 53 | head | Roofer | Canada |
| 92 | Delia Donovan | 47 | wife | None | Canada |
| 93 | Henry Donovan | 22 | son | Roofer | Massachusetts |
| 94 | Leo Donovan | 14 | son | Back-Boy | Massachusetts |
| 95 | Eddie Assey | 65 | head | None | Syria |
| 96 | Mary Assey | 58 | wife | None | Syria |
| 97 | Philip Assey | 32 | son | Exposer | Syria |
| 98 | Annie Assey | 19 | daughter | Spinner | Syria |
| 99 | Albert Assey | 21 | nephew | None | Syria |
| 100 | Hyman Greenberg | 41 | head | Repairer | Russia (Yiddish) |
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)