WM
William Mack — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cayuga-County, New York
Our Model Tree links this William Mack across the 1920, 1930 and 1940 US Censuses in Cayuga-County, New York (XGBoost, ~Confirmed) — first a head (b.~1885), then head of a 3-person household.
Age 55
b. ~1885
Male
Head
Born: New York
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cayuga-County, New York |
| Surname | Mack |
| Given Name | William V |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (City) | Town of Niles |
| 1935 Residence (County) | Cayuga |
| Additional Details | |
| Occupation | Laborer |
| Industry | Road maintenance |
| Class of Worker | GW |
| Hours Worked | 24 |
| Income (1939) | 300 |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Laborer |
| Township / Ward | Town Of Niles |
| 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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| William Mack | Head | — | 55 | ~1885 |
| Edith Mack | Daughter | — | 19 | ~1921 |
| Zoa Mack | Spouse | — | 43 | ~1897 |
Census Appearances
1920
Cayuga, New …
Head, age 34
Cayuga, New York · implied b. ~1886 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mack |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Occupation | Farming |
| Industry | General farm |
| Class of Worker | E W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1930
Cayuga, New …
Head, age 45
Cayuga, New York · implied b. ~1885 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mack |
| Given Name | William H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | New York |
| Age at First Marriage | 30 |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Occupation | Farmer |
| Industry | Truck |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 3000 |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Cayuga-County, New …
Head, age 55
Cayuga-County, New York · implied b. ~1885 — 3 household members
| Surname | Mack |
| Given Name | William V |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (City) | Town of Niles |
| 1935 Residence (County) | Cayuga |
| Occupation | Laborer |
| Industry | Road maintenance |
| Class of Worker | GW |
| Hours Worked | 24 |
| Income (1939) | 300 |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
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 William Mack across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
William Mack
Head · 1940 · age 55 · b. ~1885 · New York
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Cayuga-County, New York
Open full size
1940 US Federal Census — Cayuga-County, New York
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-02508-00501)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Micheal Matijas | 7 | Son | — | New York |
| 42 | William V Mack THIS PERSON | 55 | Head | Laborer | New York |
| 43 | Zoa T Mack | 43 | Wife | — | New York |
| 44 | Edith C Mack | 19 | Daughter | Housekeeper | New York |
| 45 | Harvey R Guernsey | 58 | Head | Carpenter | New York |
| 46 | Frank T Carver | 79 | Head | — | New York |
| 47 | Agnes Carver | 71 | Wife | — | New York |
| 48 | William H Carver | 83 | Brother | — | New York |
| 49 | Wesley R Wells | 49 | Head | Professor | Vermont |
| 50 | Flora M Wells | 47 | Wife | — | Kansas |
| 51 | Roger W Wells | 13 | Son | — | Illinois |
| 52 | Anna S Holm | 63 | Head | — | Canada |
| 53 | Andrew P Holm | 23 | Son | Farmer | Maine |
| 54 | Paul Peron | 28 | Head | Farmer | New York |
| 55 | Michael Peron | 32 | Brother | Truckman | New York |
| 56 | Sue Peron | 28 | Sister in law | — | Colorado |
| 57 | Barbara Peron | 2 | Niece | — | New York |
| 58 | John Nemec | 54 | Head | Farmer | Czechoslovakia |
| 59 | Susanna Nemec | 50 | Wife | — | Czechoslovakia |
| 60 | Pauline E Nemec | 24 | Daughter | — | New York |
| 61 | Stephen Nemec | 23 | Son | Laborer | New York |
| 62 | Martha M Nemec | 12 | Daughter | — | New York |
| 63 | Franklin Robertson | 85 | Head | — | England |
| 64 | Ray A Williams | 47 | Head | Laborer | New York |
| 65 | Agnes H Williams | 38 | Wife | — | New York |
| 66 | Ruby M Williams | 19 | Daughter | Housekeeper | New York |
| 67 | Virginia L Williams | 17 | Daughter | — | New York |
| 68 | Horace A Williams | 15 | Son | — | New York |
| 69 | Frederick A Williams | 14 | Son | — | New York |
| 70 | Norma E Williams | 12 | Daughter | — | New York |
| 71 | Raymond S Williams | 9 | Son | — | New York |
| 72 | Roberta A Williams | 7 | Daughter | — | New York |
| 73 | Charles C Williams | 6 | Son | — | New York |
| 74 | Helen R Williams | 4 | Daughter | — | New York |
| 75 | Clark J Williams | 3 | Son | — | New York |
| 76 | Shirley A Williams | 2 | Daughter | — | New York |
| 77 | Jean A Williams | 0 | Daughter | — | New York |
| 78 | Clark A Williams | 72 | Uncle | — | New York |
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)