WM
William Mcdermott — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Wayne-County, Michigan
Our Model Tree links this William Mcdermott across the 1930 and 1940 US Censuses in Wayne-County, Michigan (XGBoost, ~Confirmed) — first a son (b.~1927), then head of a 8-person household.
Age 13
b. ~1927
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Wayne-County, Michigan |
| Surname | McDermott |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Lincoln Park City |
| 1935 Residence (County) | Wayne |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Lincoln Park City |
| Est. Birth Year | ~1927 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Jane Mcdermott | Daughter | — | 17 | ~1923 |
| Ronald Mcdermott | Son | — | 19 | ~1921 |
| Raymond Mcdermott | Son | — | 10 | ~1930 |
| William Mcdermott | Son | — | 13 | ~1927 |
| Ruth Mcdermott | Spouse | — | 50 | ~1890 |
| Theresa Mcdermott | Daughter | — | 12 | ~1928 |
| James Mcdermott | Head | — | 53 | ~1887 |
| James Mcdermott | Son | — | 15 | ~1925 |
Census Appearances
1930
Wayne, Michigan
Son, age 3
Wayne, Michigan · implied b. ~1927 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McDermott |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Wayne-County, Michigan
Son, age 13
Wayne-County, Michigan · implied b. ~1927 — 8 household members
| Surname | McDermott |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Lincoln Park City |
| 1935 Residence (County) | Wayne |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| 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 William Mcdermott across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Mcdermott
Son · 1940 · age 13 · b. ~1927 · Michigan
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Sibling
James Mcdermott
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jane Mcdermott
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Raymond Mcdermott
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ronald Mcdermott
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Theresa Mcdermott
Sibling · 1940 · age 12
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
1940 US Federal Census — Wayne-County, Michigan
Open full size
1940 US Federal Census — Wayne-County, Michigan
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01833-00300)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Andrew Gall | 57 | Head | Hopper | Czecho-Slovakia |
| 2 | Elizabeth Gall | 56 | Wife | — | Hungary |
| 3 | Andrew Gall | 27 | Son | Clerk | Ohio |
| 4 | Eva Gall | 27 | Daughter | — | New York |
| 5 | Kathleen Mary Gall | 5 | Granddaughter | — | Michigan |
| 6 | Thomas Compeau | 50 | Head | Power Machine Operator | Michigan |
| 7 | Sidney Compeau | 25 | Son | Painter | Michigan |
| 8 | Carole Compeau | 18 | Daughter | Waitress | Michigan |
| 9 | Siegfried Elaine Compeau | 14 | Daughter | Waitress | Michigan |
| 10 | Minerva Ezofer | 60 | Head | Clerk (Shipping) | Pennsylvania |
| 11 | Henry Smith | 47 | Lodger | Production Worker | Michigan |
| 12 | James Mulaney | 61 | Head | Crane Operator | New York State |
| 13 | Caroline Mulaney | 60 | Wife | — | New York City |
| 14 | Verl Day | 23 | Lodger | Truck Driver | Michigan |
| 15 | Ethel Day | 23 | Lodger | — | Michigan |
| 16 | Edwin Hunter | 43 | Head | Production Worker | Arkansas |
| 17 | Mayme Hunter | 34 | Wife | — | Arkansas |
| 18 | Bobbie Hunter | 14 | Daughter | — | Michigan |
| 19 | James Hunter | 11 | Son | — | Michigan |
| 20 | Diane Hunter | 10 | Daughter | — | Michigan |
| 21 | Ray Wickman | 38 | Head | Metal Finisher | Iowa |
| 22 | Lucille Wickman | 34 | Wife | Saleslady | Minnesota |
| 23 | Wesley Ranone | 25 | Head | Foreman | Canada-English |
| 24 | Thomas A Ranone | 30 | Wife | Saleslady | Canada-English |
| 25 | Joseph Magyar | 34 | Head | Superintendent | Hungary |
| 26 | Dolores Magyar | 13 | Daughter | — | Michigan |
| 27 | Joyce Magyar | 10 | Daughter | — | Michigan |
| 28 | Joseph Magyar | 6 | Son | — | Michigan |
| 29 | Shirley Ann Magyar | 4 | Daughter | — | Michigan |
| 30 | Anne Magyar | 19 | Sister | — | Ohio |
| 31 | James A Mcdermott | 53 | Head | Clerk-Shipping | Pennsylvania |
| 32 | Ruth Mcdermott | 50 | Wife | — | Pennsylvania |
| 33 | Ronald Mcdermott | 19 | Son | Messenger | Pennsylvania |
| 34 | Jane Mcdermott | 17 | Daughter | — | Pennsylvania |
| 35 | James Mcdermott | 15 | Son | — | Pennsylvania |
| 36 | William Mcdermott THIS PERSON | 13 | Son | — | Pennsylvania |
| 37 | Theresa Mcdermott | 12 | Daughter | — | Pennsylvania |
| 38 | Raymond Mcdermott | 10 | Son | — | Michigan |
| 39 | Adolph Adomet | 46 | Head | Metal Finisher | Russia |
| 40 | Marie Adomet | 45 | Wife | — | Russia |
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)