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Mary Buck — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Hudson-County, New Jersey
Our Model Tree links this Mary Buck across the 1920, 1930 and 1940 US Censuses in Hudson-County, New Jersey (XGBoost, ~Confirmed) — first a spouse (b.~1885), then head of a 6-person household.
Age 55
b. ~1885
Female
Spouse
Born: Poland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Hudson-County, New Jersey |
| Surname | Buck |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Poland |
| 1935 Residence (City) | JERSEY CITY |
| 1935 Residence (County) | HUDSON |
| Naturalization Status | Naturalized |
| Additional Details | |
| Highest Grade | 8 |
| 1935 Residence | Same Place |
| Birth Country | Poland |
| Birthplace (normalized) | poland |
| Township / Ward | Jersey City |
| Est. Birth Year | ~1885 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Henry Henry | Son | — | 11 | ~1929 |
| Doris Henry | Daughter | — | 9 | ~1931 |
| Joan Henry | Spouse | — | 36 | ~1904 |
| Josephine Buck | Daughter | — | 17 | ~1923 |
| Mary Buck | Spouse | — | 55 | ~1885 |
| Head Henry | Other | — | — |
Census Appearances
1920
Hudson, New …
Spouse, age 35
Hudson, New Jersey · implied b. ~1885 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Buck |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Poland |
| Year of Immigration | 1907 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Poland |
| Mother's Birthplace | Poland |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Polish |
| Birth Country | Poland |
| Year of Naturalization | 1917 |
| Birthplace (normalized) | poland |
1930
Hudson, New …
Spouse, age 45
Hudson, New Jersey · implied b. ~1885 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Buck |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Poland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1906 |
| Age at First Marriage | 33 |
| Father's Birthplace | Poland |
| Mother's Birthplace | Poland |
| Can Read/Write | Yes |
| Mother Tongue | Polish |
| Birth Country | Poland |
| Birthplace (normalized) | poland |
1940
Hudson-County, New …
Spouse, age 55
Hudson-County, New Jersey · implied b. ~1885 — 6 household members
| Surname | Buck |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Poland |
| 1935 Residence (City) | JERSEY CITY |
| 1935 Residence (County) | HUDSON |
| Naturalization Status | Naturalized |
| Highest Grade | 8 |
| 1935 Residence | Same Place |
| Birth Country | Poland |
| Birthplace (normalized) | poland |
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 Buck 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 Buck
Spouse · 1940 · age 55 · b. ~1885 · New Jersey
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Hudson-County, New Jersey
Open full size
1940 US Federal Census — Hudson-County, New Jersey
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02405-00091)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Mary Buck THIS PERSON | 55 | Wife | — | Poland |
| 42 | Josephine Buck | 17 | Daughter | — | New Jersey |
| 43 | Head Henry | None | M | Southern Oil Cotton Co. | — |
| 44 | Joan Henry | 36 | Wife | — | New York |
| 45 | Henry Jr Henry | 11 | Son | — | New Jersey |
| 46 | Doris Henry | 9 | Daughter | — | New Jersey |
| 47 | Allison Fradenburgh | 32 | Head | Bank Guard | New York |
| 48 | Edna Fradenburgh | 27 | Wife | — | New Jersey |
| 49 | Allison Jr Fradenburgh | 2 | Son | — | New Jersey |
| 50 | Albert Sr. Deiter | 62 | In-law | Iron Molder | New York |
| 51 | Susie Deiter | 58 | Wife | — | New Jersey |
| 52 | Thomas Devine | 27 | Head | Signalman | New Jersey |
| 53 | Hazel Devine | 25 | Wife | — | New Jersey |
| 54 | Thomas Jr Devine | 6 | Son | — | New Jersey |
| 55 | James Devine | 5 | Son | — | New Jersey |
| 56 | George Hipsley | 32 | Head | Salesman | New York |
| 57 | Mary Hipsley | 29 | Wife | — | New Jersey |
| 58 | Walter Meishohn | 23 | Head | Sheetmetal | New Jersey |
| 59 | Harriet Meishohn | 27 | Wife | — | New Jersey |
| 60 | June Meishohn | 1 | Daughter | — | New Jersey |
| 61 | Joseph Lullo | 52 | Head | Storekeeper | Italy |
| 62 | Rose Lullo | 48 | Wife | — | Italy |
| 63 | Louise Lullo | 21 | Daughter | Sewing Mach Operator | New Jersey |
| 64 | James Lullo | 20 | Son | In Navy | New Jersey |
| 65 | Joseph Jr Lullo | 18 | Son | Painters Helper | New Jersey |
| 66 | Grace Lullo | 16 | Daughter | New Worker | New Jersey |
| 67 | Dominick Lullo | 15 | Son | — | New Jersey |
| 68 | Luciano Lullo | 11 | Son | — | New Jersey |
| 69 | John Lullo | 10 | Son | — | New Jersey |
| 70 | Alfred Lullo | 8 | Son | — | New Jersey |
| 71 | Helen O'Connor | 43 | Head | Nurses Aide | No. Ireland |
| 72 | James O'Connor | 21 | Son | Mechanic | New York |
| 73 | Eileen O'Connor | 19 | Daughter | New Worker | New Jersey |
| 74 | Kevin Barry O'Connor | 16 | Son | — | New Jersey |
| 75 | Thomas O'Connor | 14 | Son | — | New Jersey |
| 76 | Rose Marie (Twin) O'Connor | 12 | Daughter | — | New Jersey |
| 77 | Theresa O'Connor | 12 | Daughter | — | New Jersey |
| 78 | Elizabeth O'Connor | 10 | Daughter | — | New Jersey |
| 79 | Victor Abby | 45 | Head | Foreman | Switzerland |
| 80 | Edith Abby | 48 | Wife | — | England |
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)