WM
William Mclean — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Walworth-County, Wisconsin
Our Model Tree links this William Mclean across the 1920, 1930 and 1940 US Censuses in Walworth-County, Wisconsin (XGBoost, ~Confirmed) — first a head (b.~1876), then head of a 9-person household.
Age 64
b. ~1876
Male
Head
Born: Scotland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Walworth-County, Wisconsin |
| Surname | McLean |
| Given Name | William E. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 64 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Whitewater city |
| 1935 Residence (County) | Walworth |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | laborer (engine) |
| Industry | Condensary |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1250 |
| Highest Grade | C 1 |
| 1935 Residence | Same place |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
| Occupation | Laborer |
| Township / Ward | Whitewater City |
| Est. Birth Year | ~1876 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Sylvia Mclean | Daughter | — | 25 | ~1915 |
| Margret Mclean | Daughter | — | 20 | ~1920 |
| Christiana Mclean | Daughter | — | 18 | ~1922 |
| William Mclean | Head | — | 64 | ~1876 |
| Menzies Mclean | Son | — | 31 | ~1909 |
| Gordon Mclean | Son | — | 15 | ~1925 |
| Robert Mclean | Son | — | 17 | ~1923 |
| Thomas Mclean | Son | — | 23 | ~1917 |
| Elizabeth Mclean | Spouse | — | 50 | ~1890 |
Census Appearances
1920
Walworth, Wisconsin
Head, age 43
Walworth, Wisconsin · implied b. ~1877 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McLean |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Scotland |
| Year of Immigration | 1896 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Scotch |
| Home Owned/Rented | R |
| Birth Country | Scotland |
| Year of Naturalization | Un |
| Birthplace (normalized) | scotland |
1930
Walworth, Wisconsin
Head, age 53
Walworth, Wisconsin · implied b. ~1877
●
Primary link
· ~Confirmed · 1 source
XGBoost
| Surname | McLean |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Scotland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1897 |
| Age at First Marriage | 29 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Laborer |
| Industry | Milk Condensery |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Scotch |
| Home Owned/Rented | O |
| Home Value / Rent | 1600 |
| Radio Set | R |
| Veteran | No |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1940
Walworth-County, Wisconsin
Head, age 64
Walworth-County, Wisconsin · implied b. ~1876 — 9 household members
| Surname | McLean |
| Given Name | William E. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 64 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Whitewater city |
| 1935 Residence (County) | Walworth |
| Naturalization Status | Naturalized |
| Occupation | laborer (engine) |
| Industry | Condensary |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1250 |
| Highest Grade | C 1 |
| 1935 Residence | Same place |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
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 Mclean 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 Mclean
Head · 1940 · age 64 · b. ~1876 · Wisconsin
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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 — Walworth-County, Wisconsin
Open full size
1940 US Federal Census — Walworth-County, Wisconsin
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04531-01097)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Annie Baker | 66 | wife | — | Wisconsin |
| 2 | William E. Mclean THIS PERSON | 64 | Head | Laborer (Engine) | Scotland |
| 3 | Elizabeth Mclean | 50 | wife | — | Northern Ireland |
| 4 | Menzies Mclean | 31 | son | Cook | Michigan |
| 5 | Sylvia Mclean | 25 | daughter | Manager | Michigan |
| 6 | Thomas Mclean | 23 | son | Messenger | Michigan |
| 7 | Margret Mclean | 20 | daughter | Apprentice | Wisconsin |
| 8 | Christiana Mclean | 18 | daughter | — | Wisconsin |
| 9 | Robert Mclean | 17 | son | — | Wisconsin |
| 10 | Gordon Mclean | 15 | son | — | Wisconsin |
| 11 | Clara Colbert | 79 | Head | — | Wisconsin |
| 12 | Alex Mclean | 40 | Head | Laborer | Wisconsin |
| 13 | Lucile Mclean | 44 | wife | — | Wisconsin |
| 14 | Alex Jr. Mclean | 9 | son | — | Wisconsin |
| 15 | Martha Wilson | 84 | Head | — | Indiana |
| 16 | Mark Wilson | 54 | son | Owner | Wisconsin |
| 17 | Fred Dornacher | 36 | Head | Clerk | Michigan |
| 18 | Irene Dornacher | 30 | wife | — | Illinois |
| 19 | Frederick Jr. Dornacher | 10 | son | — | Illinois |
| 20 | Gerald Dornacher | 9 | son | — | Illinois |
| 21 | Shirley Dornacher | 5 | daughter | — | Wisconsin |
| 22 | Lawrence Dornacher | 0 | son | — | Wisconsin |
| 23 | Earl Nickerson | 53 | Head | Truck Driver | Wisconsin |
| 24 | Ethel Nickerson | 46 | wife | — | Wisconsin |
| 25 | Jack Nickerson | 15 | son | Paper Boy | Montana |
| 26 | Dorothy Clark | 35 | Head | House Cleaner | Wisconsin |
| 27 | Marjorie Clark | 19 | daughter | N.Y.A. | Wisconsin |
| 28 | Kenneth Clark | 17 | son | General Work | Wisconsin |
| 29 | Bernice Clark | 16 | daughter | — | Wisconsin |
| 30 | Merlin Clark | 14 | son | — | Wisconsin |
| 31 | Mary Clark | 12 | daughter | — | Wisconsin |
| 32 | Clarence Hodge | 50 | Head | Farmer | Wisconsin |
| 33 | Hazel Hodge | 49 | wife | Machine Operator | Wisconsin |
| 34 | Russell Hodge | 14 | son | — | Wisconsin |
| 35 | Frank Hollinger | 72 | Father-in-law | — | Wisconsin |
| 36 | Ruby Hollinger | 69 | Mother-in-law | — | Wisconsin |
| 37 | Merle E. Brown | 31 | Head | Machinist | Wisconsin |
| 38 | Frances Brown | 24 | wife | — | Wisconsin |
| 39 | Edward J. Brown | 6 | son | — | Wisconsin |
| 40 | William E. Brown | 64 | Father | Barber | Wisconsin |
Related Census Records
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)