MK
Mary Kearney — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Baltimore-City-County, Maryland
Our Model Tree links this Mary Kearney across the 1930 and 1940 US Censuses in Baltimore-City-County, Maryland (XGBoost, ~Confirmed) — first a daughter (b.~1927), then head of a 10-person household.
Age 13
b. ~1927
Female
Daughter
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-City-County, Maryland |
| Surname | Kearney |
| Given Name | Mary E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Additional Details | |
| Highest Grade | 7 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1927 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Paul Kearney | Son | — | 13 | ~1927 |
| John Kearney | Son | — | 17 | ~1923 |
| Catherine Kearney | Spouse | — | 48 | ~1892 |
| Mary Kearney | Daughter | — | 13 | ~1927 |
| Raymond Kearney | Son | — | 10 | ~1930 |
| Joseph Kearney | Son | — | 19 | ~1921 |
| Thomas Kearney | Head | — | 57 | ~1883 |
| Francis Kearney | Son | — | 22 | ~1918 |
| James Kearney | Son | — | 20 | ~1920 |
| James Kearney | Son | — | 15 | ~1925 |
Census Appearances
1930
Baltimore, Maryland
Daughter, age 4
Baltimore, Maryland · implied b. ~1926 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kearney |
| Given Name | Mary L |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-City-County, Maryland
Daughter, age 13
Baltimore-City-County, Maryland · implied b. ~1927 — 10 household members
| Surname | Kearney |
| Given Name | Mary E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Highest Grade | 7 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
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 Kearney across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Kearney
Daughter · 1940 · age 13 · b. ~1927 · Maryland
★ You are viewing this record
Sibling
James Kearney
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Francis Kearney
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Kearney
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Paul Kearney
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Kearney
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Raymond Kearney
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Kearney
Sibling · 1940 · 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
1940 US Federal Census — Baltimore-City-County, Maryland
Open full size
1940 US Federal Census — Baltimore-City-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01520-00334)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Annie E Reyer | 64 | Head | — | England |
| 2 | Mattie Reyer | 62 | Sister | — | New York |
| 3 | Catherine Hamper | 64 | Head | — | Maryland |
| 4 | Ella E Doyle | 68 | Lodger | — | Maryland |
| 5 | Thomas R Kearney | 57 | Head | Owner | Maryland |
| 6 | Catherine E Kearney | 48 | Wife | — | Maryland |
| 7 | Francis X Kearney | 22 | Son | Draftsman | Maryland |
| 8 | James T Kearney | 20 | Son | Draftsman Air Plane | Maryland |
| 9 | Joseph A Kearney | 19 | Son | Draftsman | Maryland |
| 10 | John C Kearney | 17 | Son | — | Maryland |
| 11 | James G Kearney | 15 | Son | — | Maryland |
| 12 | Paul Kearney | 13 | Son | — | Maryland |
| 13 | Mary E Kearney THIS PERSON | 13 | Daughter | — | Maryland |
| 14 | Raymond Kearney | 10 | Son | — | Maryland |
| 15 | John T Matray | 28 | Head | Clerk | Pennsylvania |
| 16 | Ann Matray | 26 | Wife | — | Pennsylvania |
| 17 | Mynette Matray | 1 | Daughter | — | Pennsylvania |
| 18 | John W Norris | 57 | Head | — | Maryland |
| 19 | Edna M Norris | 57 | Wife | — | Maryland |
| 20 | Edith L Norris | 33 | Daughter | Clerk | Maryland |
| 21 | Annie Bull | 91 | Mother-in-law | — | Maryland |
| 22 | Frank P Mckenna | 60 | Head | Laborer | Maryland |
| 23 | Anna M Mckenna | 60 | Wife | — | Maryland |
| 24 | Elizabeth Graves | 34 | Lodger | — | Maryland |
| 25 | Nellie B Shipley | 57 | Lodger | New Worker | Maryland |
| 26 | Frances M Shipley | 18 | Daughter-in-law | Telephone Operator | Maryland |
| 27 | Lawrence B Shipley | 15 | Son-in-law | — | Maryland |
| 28 | Jacob T Hoffman | 45 | Head | Electrician | Maryland |
| 29 | Helen M Hoffman | 45 | Wife | Lodging House Keeper | Ohio |
| 30 | Jacob Jr. Hoffman | 16 | Son | — | Maryland |
| 31 | Nancy H Britton | 25 | Step-daughter | Secretary | Maryland |
| 32 | Amelia Montoux | 35 | Lodger | Manicurist | Illinois |
| 33 | William Gersterman | 34 | Lodger | Clerk | Maryland |
| 34 | William Jones | 21 | Lodger | Posting Machine Operator | Maryland |
| 35 | Victor Paell | 32 | Lodger | Clerk | Maryland |
| 36 | Leonard J Wilson | 26 | Lodger | Clerk | Maryland |
| 37 | William Eckhart | 34 | Lodger | Elevator Dispatcher | Maryland |
| 38 | Elizabeth E Watts | 67 | Head | — | Maryland |
| 39 | John E Kirwan | 66 | Brother-in-law | Guard | Maryland |
| 40 | Lula P Kirwan | 65 | Sister | — | Maryland |
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)