MC
Mary Cavanaugh — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Hudson, New Jersey
Our Model Tree links this Mary Cavanaugh across the 1920, 1930 and 1940 US Censuses in Hudson, New Jersey (XGBoost, ~Confirmed) — first a head (b.~1859), then head of a 3-person household.
Age 61
b. ~1859
Female
Head
Born: Ireland
Widowed
1920 Census Record Details
| Census Year | 1920 |
| Location | Hudson, New Jersey |
| Surname | Cavanaugh |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 61 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Year of Immigration | 1881 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Irish |
| Home Owned/Rented | R |
| Birth Country | Ireland |
| Year of Naturalization | 1885 |
| Birthplace (normalized) | ireland |
| Township / Ward | Jersey City |
| Est. Birth Year | ~1859 |
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 |
|---|---|---|---|---|
| Mary Cavanaugh | Head | — | 61 | ~1859 |
| Mary Cavanaugh | Daughter | — | 24 | ~1896 |
| Rose Cavanaugh | Daughter | — | 25 | ~1895 |
Census Appearances
1920
Hudson, New …
Head, age 61
Hudson, New Jersey · implied b. ~1859 — 3 household members
| Surname | Cavanaugh |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 61 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Year of Immigration | 1881 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Irish |
| Home Owned/Rented | R |
| Birth Country | Ireland |
| Year of Naturalization | 1885 |
| Birthplace (normalized) | ireland |
1930
Hudson, New …
Other, age 71
Hudson, New Jersey · implied b. ~1859 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cavanaugh |
| Given Name | Mary |
| Relationship to Head | Mother-in-law |
| Sex | F |
| Color / Race | White |
| Age | 71 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Year of Immigration | 1880 |
| Age at First Marriage | 20 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read/Write | Yes |
| Mother Tongue | Irish |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1940
Hudson-County, New …
Head, age 80
Hudson-County, New Jersey · implied b. ~1860
●
Primary link
· ~Confirmed · 1 source
XGBoost
| Surname | Cavenaugh |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 80 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| 1935 Residence (City) | North Bergen Twp. |
| 1935 Residence (County) | Hudson County |
| Naturalization Status | Naturalized |
| Class of Worker | 0 |
| Highest Grade | 7 |
| 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 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Cavanaugh
Head · 1920 · age 61 · b. ~1859 · New Jersey
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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 — Hudson, New Jersey
Open full size
1920 US Federal Census — Hudson, New Jersey
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu1043unit:0828)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Adela Tree | 46 | Head | Mistress | New York |
| 2 | Hagop Gevorkian | 27 | Lodger | Carpenter | Armenia |
| 3 | Hagop Tigranian | 27 | Lodger | Mechanic | Armenia |
| 4 | Thomas Galvin | 50 | Lodger | Salesman | Ireland |
| 5 | John J. Johnson | 49 | Lodger | Agent | New Jersey |
| 6 | John Sweski | 32 | Lodger | Teamster | New Jersey |
| 7 | Gaetano Bucca | 40 | Lodger | Barber | Italy |
| 8 | Anthony Aito | 25 | Lodger | Tailor | Italy |
| 9 | John Weldon | 42 | Lodger | Electrician | Ireland |
| 10 | Katherine Ackerly | 5 | Daughter | — | New Jersey |
| 11 | George Ackerly | 1 | Son | — | New Jersey |
| 12 | Thomas Cosgrove | 25 | Head | Horseshoer | New Jersey |
| 13 | Mary Cosgrove | 20 | Wife | — | New Jersey |
| 14 | John Cosgrove | 1 | Son | — | New Jersey |
| 15 | Anthony Schaefer | 60 | Head | Watchman | Germany |
| 16 | Margaret Schaefer | 59 | Wife | — | Ireland |
| 17 | Peter Conklin | 25 | Head | Brakeman | New Jersey |
| 18 | Elizabeth Conklin | 21 | Wife | — | New Jersey |
| 19 | Margaret Conklin | 4 | Daughter | — | New Jersey |
| 20 | Eleanor Conklin | 1 | Daughter | — | New Jersey |
| 21 | Bridget Findlon | 48 | Mother-in-law | Janitress | Ireland |
| 22 | Martin Connelly | 25 | Head | Checker | New Jersey |
| 23 | Margaret Connelly | 26 | Wife | — | New Jersey |
| 24 | Martin Jr. Connelly | 3 | Son | — | New Jersey |
| 25 | Margaret Connelly | 1 | Daughter | — | New Jersey |
| 26 | Rose Holden | 31 | Head | Laborer | New Jersey |
| 27 | Charles Shelacher | 32 | Head | Machinist | New Jersey |
| 28 | Margaret Shelacher | 23 | Wife | — | New Jersey |
| 29 | Paul Shelacher | 5 | Son | — | New Jersey |
| 30 | Clara Shelacher | 3 | Daughter | — | New Jersey |
| 31 | Anna Shelacher | 1 | Daughter | — | New Jersey |
| 32 | Nathan Pruitt | 32 | Head | Proprietor | Russia |
| 33 | Ida Pruitt | 30 | Wife | — | Russia |
| 34 | James Pruitt | 5 | Son | — | New York |
| 35 | Florence Pruitt | 2 | Daughter | — | New York |
| 36 | Anna Kelly | 50 | Head | — | Ireland |
| 37 | John Kelly | 23 | Son | Clerk | New Jersey |
| 38 | Peter H. Kelly | 20 | Son | Machinist | New Jersey |
| 39 | Mary Cavanaugh THIS PERSON | 61 | Head | — | Ireland |
| 40 | Rose Cavanaugh | 25 | Daughter | Laborer | New Jersey |
| 41 | Mary Cavanaugh | 24 | Daughter | Laborer | New Jersey |
| 42 | James Ross | 59 | Head | Bridge Master | New Jersey |
| 43 | Mary Ross | 56 | Wife | — | Massachusetts |
| 44 | William Farrell | 46 | Brother-in-law | Laborer | Ireland |
| 45 | Richard Farrell | 44 | Brother-in-law | Guard | Ireland |
| 46 | John J. Milligan | 45 | Head | Teamster | New York |
| 47 | Elizabeth Milligan | 40 | Wife | — | New York |
| 48 | Florence Milligan | 18 | Daughter | Stenographer | New York |
| 49 | Agatha Milligan | 16 | Daughter | — | New York |
| 50 | Rita Corcoran | 21 | Boarder | Stenographer | New York |
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)