MH
Mary Haggerty — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Delaware, Pennsylvania
Our Model Tree links this Mary Haggerty across the 1930 and 1940 US Censuses in Delaware, Pennsylvania (XGBoost, ~Confirmed) — first a daughter (b.~1926), then head of a 9-person household.
Age 4
b. ~1926
Female
Daughter
Born: Pennsylvania
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Delaware, Pennsylvania |
| Surname | Haggerty |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Additional Details | |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Sharon Hill Borough Part Of |
| Est. Birth Year | ~1926 |
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.
9 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Andrew Haggerty | Son | — | 12 | ~1918 |
| Bessie Haggerty | Daughter | — | 2 | ~1928 |
| John Haggerty | Son | — | 7 | ~1923 |
| Joseph Haggerty | Son | — | 10 | ~1920 |
| Mary Haggerty | Daughter | — | 4 | ~1926 |
| Margaret Haggerty | Daughter | — | 6 | ~1924 |
| Joseph Haggerty | Head | — | 33 | ~1897 |
| Helen Haggerty | Daughter | — | 8 | ~1922 |
| Nellie Haggerty | Other | — | 34 | ~1896 |
Census Appearances
1930
Delaware, Pennsylvania
Daughter, age 4
Delaware, Pennsylvania · implied b. ~1926 — 9 household members
| Surname | Haggerty |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Delaware-County, Pennsylvania
Daughter, age 15
Delaware-County, Pennsylvania · implied b. ~1925 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hagarty |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Darby Twp |
| 1935 Residence (County) | Delaware |
| Income (1939) | 0 |
| Highest Grade | Hs 8 |
| 1935 Residence | Same house |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 Haggerty across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Haggerty
Daughter · 1930 · age 4 · b. ~1926 · Pennsylvania
★ You are viewing this record
Sibling
Andrew Haggerty
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Haggerty
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Haggerty
Sibling · 1930 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Haggerty
Sibling · 1930 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Haggerty
Sibling · 1930 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bessie Haggerty
Sibling · 1930 · age 2
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
1930 US Federal Census — Delaware, Pennsylvania
Open full size
1930 US Federal Census — Delaware, Pennsylvania
Page Contents
49 people indexed on this census page (ia:1930:fifteenthcensus00reel2032:1080)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Isabella Goodwin | 17 | Daughter | — | Pennsylvania |
| 2 | William R Goodwin | 86 | Father-in-law | — | Pennsylvania |
| 3 | James Linton | 44 | Head | Stationery Eng | Scotland |
| 4 | Isabella Linton | 43 | Wife-H | — | Scotland |
| 5 | Andrew Linton | 19 | Son | Draftsman | Scotland |
| 6 | Annie Linton | 18 | Daughter | Saleswoman | Scotland |
| 7 | Clair Neifert | 28 | Head | Acetylene Welder | Pennsylvania |
| 8 | Margaret Neifert | 29 | Wife-H | — | Pennsylvania |
| 9 | Jacqueline Neifert | 4 | Daughter | — | Pennsylvania |
| 10 | John Neifert | 1 | Son | — | Pennsylvania |
| 11 | John E Nash | 24 | Bro-in-law | Clerk | Pennsylvania |
| 12 | Gertrude Nash | 22 | Sis-in-law | Stenographer | Pennsylvania |
| 13 | Rose Nash | 20 | Sis-in-law | Typist | Pennsylvania |
| 14 | Katherine Nash | 16 | Sis-in-law | — | Pennsylvania |
| 15 | Charles Kiewicz | 62 | Head | Machinist | Scotland |
| 16 | Helen Kiewicz | 60 | Wife-H | — | Scotland |
| 17 | Henry Kiewicz | 22 | Son | Musician | Scotland |
| 18 | Hugh J Smith | 56 | Head | Salesman | Pennsylvania |
| 19 | Elizabeth Smith | 54 | Wife-H | Stockkeeper | New Jersey |
| 20 | Evangeline Smith | 31 | Daughter | Secretary | Pennsylvania |
| 21 | Alfred Cromer | 37 | Head | Mechanic | Pennsylvania |
| 22 | Carrie Cromer | 35 | Wife-H | Operator | Pennsylvania |
| 23 | Alfred Cromer | 15 | Son | — | Pennsylvania |
| 24 | Walter Cromer | 12 | Son | — | Pennsylvania |
| 25 | Robert Cromer | 10 | Son | — | Pennsylvania |
| 26 | Joseph Haggerty | 33 | Head | Com. Traveler | Irish Free State |
| 27 | Nellie Haggerty | 34 | Wife-H | — | Irish Free State |
| 28 | Andrew Haggerty | 12 | Son | — | Pennsylvania |
| 29 | Joseph Haggerty | 10 | Son | — | Pennsylvania |
| 30 | Helen Haggerty | 8 | Daughter | — | Pennsylvania |
| 31 | John Haggerty | 7 | Son | — | Pennsylvania |
| 32 | Margaret Haggerty | 6 | Daughter | — | Pennsylvania |
| 33 | Mary Haggerty THIS PERSON | 4 | Daughter | — | Pennsylvania |
| 34 | Bessie Haggerty | 2 | Daughter | — | Pennsylvania |
| 35 | James Donohue | 27 | Head | Clerk | Pennsylvania |
| 36 | Katherine Donohue | 26 | Wife-H | — | Pennsylvania |
| 37 | Manderfield Donohue | 23 | Sis-in-law | Clerk | Pennsylvania |
| 38 | Frank Campbell | 40 | Head | Agent | Pennsylvania |
| 39 | Katherine Campbell | 40 | Wife-H | Bookkeeper | Pennsylvania |
| 40 | Edward A Campbell | 76 | Father | — | Delaware |
| 41 | Theresa A Campbell | 75 | Mother | — | Pennsylvania |
| 42 | Sharon Boyer | 52 | Head | Clerk | Pennsylvania |
| 43 | Anna Boyer | 44 | Wife-H | — | Pennsylvania |
| 44 | Martin Rogan | 68 | Head | Stonecutter | Irish Free State |
| 45 | Bridget Rogan | 66 | Wife-H | — | Pennsylvania |
| 46 | Thomas Rogan | 26 | Son | — | Pennsylvania |
| 47 | Edmund Calfoth | 38 | Son-in-law | Agent | Pennsylvania |
| 48 | Katherine Calfoth | 38 | Daughter-in-law | Saleswoman | Pennsylvania |
| 49 | Patricia Calfoth | 9 | Gr-Daughter | — | Pennsylvania |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)