MC
Mary Cavanaugh — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Delaware, Pennsylvania
Our Model Tree links this Mary Cavanaugh across the 1920, 1930 and 1940 US Censuses in Delaware, Pennsylvania (XGBoost, ~Confirmed) — first a spouse (b.~1882), then head of a 3-person household.
Age 38
b. ~1882
Female
Spouse
Born: Ireland
Married
1920 Census Record Details
| Census Year | 1920 |
| Location | Delaware, Pennsylvania |
| Surname | Cavanaugh |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Ireland |
| Year of Immigration | 1904 |
| Naturalization Status | Alien |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Township / Ward | Lower Chichester |
| Est. Birth Year | ~1882 |
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.
3 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Bridget Cavanaugh | Daughter | — | 1 | ~1919 |
| Mary Cavanaugh | Spouse | — | 38 | ~1882 |
| Dennis Cavanaugh | Head | — | 32 | ~1888 |
Census Appearances
1920
Delaware, Pennsylvania
Spouse, age 38
Delaware, Pennsylvania · implied b. ~1882 — 3 household members
| Surname | Cavanaugh |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Ireland |
| Year of Immigration | 1904 |
| Naturalization Status | Alien |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1930
Philadelphia, Pennsylvania
Spouse, age 48
Philadelphia, Pennsylvania · implied b. ~1882 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kavanaugh |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1905 |
| Age at First Marriage | 31 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1940
Philadelphia-County, Pennsylvania
Spouse, age 57
Philadelphia-County, Pennsylvania · implied b. ~1883 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cavanaugh |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | Philadelphia City |
| 1935 Residence (County) | Philadelphia |
| Naturalization Status | Naturalized |
| 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 Cavanaugh across 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Cavanaugh
Spouse · 1920 · age 38 · b. ~1882 · Pennsylvania
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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 — Delaware, Pennsylvania
Open full size
1920 US Federal Census — Delaware, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu1562unit:0361)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Annie Inkefoot | 4 | Daughter | — | Pennsylvania |
| 52 | Mary Inkefoot | 2 | Daughter | — | Pennsylvania |
| 53 | Joseph Inkefoot | 0 | Son | — | Pennsylvania |
| 54 | Dennis Cavanaugh | 32 | Head | Laborer | Ireland |
| 55 | Mary Cavanaugh THIS PERSON | 38 | Wife | — | Ireland |
| 56 | Bridget Cavanaugh | 1 | Daughter | — | Pennsylvania |
| 57 | Samuel Samuelson | 35 | Head | Fireman | Denmark |
| 58 | Elfreda Samuelson | 28 | Wife | — | Denmark |
| 59 | Elizabeth Samuelson | 12 | Daughter | — | Denmark |
| 60 | Elsa Samuelson | 11 | Daughter | — | Denmark |
| 61 | Carl Samuelson | 8 | Son | — | Denmark |
| 62 | John Samuelson | 7 | Son | — | Denmark |
| 63 | Joseph Dockery | 25 | Head | General | Pennsylvania |
| 64 | Catherine Dockery | 24 | Wife | Operator | Pennsylvania |
| 65 | Lester Dockery | 0 | Son | — | Pennsylvania |
| 66 | Joseph Packer | 52 | Boarder | General | Ireland |
| 67 | Dominick Riley | 56 | Head | Laborer | Ireland |
| 68 | Agnes Riley | 53 | Wife | — | Ireland |
| 69 | Agnes Riley | 18 | Daughter | Operator | Pennsylvania |
| 70 | Patrick Riley | 12 | Son | — | Pennsylvania |
| 71 | Catherine Riley | 10 | Daughter | — | Pennsylvania |
| 72 | James Mccrory | 45 | Head | Proprietor | New Jersey |
| 73 | Mary Mccrory | 40 | Wife | — | Ireland |
| 74 | Harry Mccrory | 18 | Son | Filler | Pennsylvania |
| 75 | Catherine Mccrory | 15 | Daughter | Operator | Pennsylvania |
| 76 | Thomas Mccrory | 13 | Son | — | Pennsylvania |
| 77 | James Jr. Mccrory | 10 | Son | — | Pennsylvania |
| 78 | John Mccrory | 7 | Son | — | Pennsylvania |
| 79 | Jack Donley | 70 | Head | Laborer | New Hampshire |
| 80 | Althea Donley | 31 | Wife | — | Maine |
| 81 | Daniel Mcgovern | 31 | Boarder | Operator | Pennsylvania |
| 82 | Joseph Rourke | 31 | Head | Operator | Ireland |
| 83 | Elizabeth Rourke | 40 | Wife | — | Ireland |
| 84 | Joseph Jr. Rourke | 11 | Son | — | Pennsylvania |
| 85 | Elizabeth Rourke | 8 | Daughter | — | Pennsylvania |
| 86 | Thomas Flemming | 36 | Boarder | Operator | Scotland |
| 87 | Sarah Flemming | 32 | Boarder | — | Scotland |
| 88 | Earl Williams | 27 | Head | Engineer | Pennsylvania |
| 89 | Mary Williams | 28 | Wife | — | Pennsylvania |
| 90 | Gladys Williams | 5 | Daughter | — | Pennsylvania |
| 91 | Henry Lamphear | 52 | Head | Silk Worker | Rhode Island |
| 92 | Mary Lamphear | 49 | Wife | — | Pennsylvania |
| 93 | Charles Cornello | 23 | Head | Watchman | Pennsylvania |
| 94 | Carrie Cornello | 22 | Wife | — | Maryland |
| 95 | Charles Cornello | 2 | Son | — | Pennsylvania |
| 96 | Esther Cornello | 1 | Daughter | — | Pennsylvania |
| 97 | Harry Specht | 32 | Head | Lead Burner | New Jersey |
| 98 | Edna Specht | 26 | Wife | — | Pennsylvania |
| 99 | Andrew Marshall | 44 | Head | Carpenter | Pennsylvania |
| 100 | Emma Marshall | 44 | Wife | — | Delaware |
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)