MC
Mary Connelly — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Kings-County, New York
Our Model Tree links this Mary Connelly across the 1920, 1930 and 1940 US Censuses in Kings-County, New York (XGBoost, ~Confirmed) — first a head (b.~1863), then head of a 2-person household.
Age 77
b. ~1863
Female
Head
Born: Ireland
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Kings-County, New York |
| Surname | Connelly |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 77 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| 1935 Residence (City) | N.Y. City |
| 1935 Residence (County) | Kings |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Housewife |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Occupation | Housewife |
| Township / Ward | Ny City |
| Est. Birth Year | ~1863 |
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 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Edward Connelly | Son | — | 43 | ~1897 |
| Mary Connelly | Head | — | 77 | ~1863 |
Census Appearances
1920
New York, …
Head, age 57
New York, New York · implied b. ~1863 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Connelly |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 57 |
| 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
New York, …
Head, age 68
New York, New York · implied b. ~1862 — 18 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Connelly |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 68 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1884 |
| Age at First Marriage | 20 |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Occupation | Janitress |
| Industry | Apartment house |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Home Value / Rent | 25 |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1940
Kings-County, New …
Head, age 77
Kings-County, New York · implied b. ~1863 — 2 household members
| Surname | Connelly |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 77 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| 1935 Residence (City) | N.Y. City |
| 1935 Residence (County) | Kings |
| Naturalization Status | Naturalized |
| Occupation | Housewife |
| Highest Grade | No 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 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 · 1940 · age 77 · b. ~1863 · New York
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Kings-County, New York
Open full size
1940 US Federal Census — Kings-County, New York
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02573-00460)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Henry W. Cordes | 24 | Son | Chauffeur | New York |
| 42 | Woodrow W. Cordes | 22 | Son | Clerk | New York |
| 43 | John J. Cordes | 20 | Son | Apprentice | New York |
| 44 | Adelaide F. Cordes | 15 | Daughter | School | New York |
| 45 | Paul Thomas | 61 | Head | Painter | New York |
| 46 | Genevieve Thomas | 51 | Wife | Housewife | New York |
| 47 | Joseph Gregory | 49 | Head | Driller | New York |
| 48 | Martha Gregory | 47 | Wife | Housewife | New York |
| 49 | John Gregory | 28 | Son | Salesman | New York |
| 50 | Joseph Gregory | 15 | Son | School | New York |
| 51 | Mary Mulcahy | 74 | Head | Housewife | Scotland |
| 52 | Marcella Brady | 52 | Head | Housewife | New York |
| 53 | Edward J. Brady | 25 | Son | Fireman | New York |
| 54 | Loretta Brady | 23 | Daughter | Clerk | New York |
| 55 | Edward Lawlor | 53 | Lodger | Bricklayer | New York |
| 56 | Elizabeth Connor | 58 | Head | Home | Newfoundland |
| 57 | Mary Connor | 29 | Daughter | Home | Puerto Rico |
| 58 | Hendrickson Connor | 28 | Son | Doorman | Puerto Rico |
| 59 | Terence Connor | 26 | Son | Blacksmith | Puerto Rico |
| 60 | Thomas Connor | 25 | Son | Blacksmith | Puerto Rico |
| 61 | William Merrill | 32 | Head | Policeman | New York |
| 62 | Alice Merrill | 26 | Wife | Housewife | Puerto Rico |
| 63 | Francis Merrill | 2 | Son | — | New York |
| 64 | Mary Connelly THIS PERSON | 77 | Head | Housewife | Ireland |
| 65 | Edward Connelly | 43 | Son | Plasterer | New York |
| 66 | Michael Fallon | 33 | Head | Bank Clerk | New York |
| 67 | Ethel Fallon | 22 | Wife | Home | New York |
| 68 | Donald Fallon | 8 | Son | School | New York |
| 69 | Margaret Fallon | 72 | Mother | Home | Ireland |
| 70 | Ellen Nolan | 44 | Head | Home | New York |
| 71 | Bert Nolan | 55 | Head | Longshoreman | New York |
| 72 | Patrick Carberry | 42 | Brother | — | New York |
| 73 | John Carberry | 40 | Brother | Inspector | New York |
| 74 | Robert M. Ryan | 34 | Head | Credit Man | New York |
| 75 | Mildred Ryan | 32 | Wife | Housewife | New York |
| 76 | Barry M. Ryan | 5 | Son | — | New York |
| 77 | Valerie D. Ryan | 3 | Daughter | — | New York |
| 78 | Thomas Marshal | 33 | Head | Teacher | New York |
| 79 | Frances Marshal | 30 | Wife | Housewife | New York |
| 80 | Thomas Marshal | 6 | Son | Home | New York |
Related Census Records
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 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)