WM
William Mcgrath — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Champaign-County, Illinois
Our Model Tree links this William Mcgrath across the 1920, 1930 and 1940 US Censuses in Champaign-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1883), then head of a 4-person household.
Age 57
b. ~1883
Male
Head
Born: Indiana
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Champaign-County, Illinois |
| Surname | McGrath |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | Indiana |
| 1935 Residence (City) | Urbana City |
| 1935 Residence (County) | Champaign |
| Additional Details | |
| Occupation | Millwright |
| Industry | Ry. |
| Class of Worker | PW |
| Hours Worked | 56 |
| Income (1939) | 1200 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Occupation | Millwright |
| Township / Ward | Urbana City |
| Est. Birth Year | ~1883 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Fay Mcgrath | Spouse | — | 53 | ~1887 |
| Jane Mcgrath | Daughter | — | 20 | ~1920 |
| William Mcgrath | Head | — | 57 | ~1883 |
| Marjorie Mcgrath | Daughter | — | 18 | ~1922 |
Census Appearances
1920
Champaign, Illinois
Head, age 37
Champaign, Illinois · implied b. ~1883 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McGrath |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Indiana |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Machinist |
| Industry | Foundry |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1930
Champaign, Illinois
Head, age 47
Champaign, Illinois · implied b. ~1883 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McGrath |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Indiana |
| Age at First Marriage | 23 |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Occupation | Machinist |
| Industry | R R Railroad |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 10000 |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Champaign-County, Illinois
Head, age 57
Champaign-County, Illinois · implied b. ~1883 — 4 household members
| Surname | McGrath |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | Indiana |
| 1935 Residence (City) | Urbana City |
| 1935 Residence (County) | Champaign |
| Occupation | Millwright |
| Industry | Ry. |
| Class of Worker | PW |
| Hours Worked | 56 |
| Income (1939) | 1200 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
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 Mcgrath 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 Mcgrath
Head · 1940 · age 57 · b. ~1883 · Illinois
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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 — Champaign-County, Illinois
Open full size
1940 US Federal Census — Champaign-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00765-00925)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Hideo Niiyama | 23 | Head | Civ. Eng. | Hawaii |
| 42 | Gladys Y. Niiyama | 21 | Wife | — | Hawaii |
| 43 | Geraldine T. Niiyama | 0 | Daughter | — | Illinois |
| 44 | Edward W. Comings | 32 | Head | Instructor | New Jersey |
| 45 | Jean R. Comings | 29 | Wife | — | Illinois |
| 46 | Gordon R. Comings | 7 | Son | — | Massachusetts |
| 47 | David E. Comings | 5 | Son | — | New York |
| 48 | Katherine Callahan | 54 | Head | — | Illinois |
| 49 | Frances Redding | 65 | Sister | — | Illinois |
| 50 | Lester A. Mcmasters | 68 | Head | Osteopathic | Iowa |
| 51 | Bessie M. Mcmasters | 63 | Wife | — | Wisconsin |
| 52 | J. Byron Straw | 26 | Lodger | Student | Pennsylvania |
| 53 | William R. Jones | 22 | Lodger | Student | Pennsylvania |
| 54 | Nathan 2Nd Dane | 23 | Lodger | Student | Massachusetts |
| 55 | William Mcgrath THIS PERSON | 57 | Head | Millwright | Indiana |
| 56 | Fay Mcgrath | 53 | Wife | — | Ohio |
| 57 | Jane Mcgrath | 20 | Daughter | Cashier | Illinois |
| 58 | Marjorie L. Mcgrath | 18 | Daughter | — | Illinois |
| 59 | Hahl A. Whitten | 56 | Head | Salesman | Texas |
| 60 | Elsie L. Whitten | 49 | Wife | — | Pennsylvania |
| 61 | Elsie Whitten | 19 | Daughter | — | Missouri |
| 62 | Jean Whitten | 21 | Daughter | Book Keeping | Missouri |
| 63 | Betty Whitten | 17 | Daughter | — | Missouri |
| 64 | Nancy Whitten | 11 | Daughter | — | Missouri |
| 65 | Robert D. Whitten | 6 | Son | — | Illinois |
| 66 | Clara A. Smith | 87 | Head | — | Indiana |
| 67 | George Townsen | 37 | Head | Editor | Illinois |
| 68 | Lilly D. Townsen | 39 | Wife | — | Illinois |
| 69 | George D. Townsen | 7 | Son | — | Illinois |
| 70 | Robert E. Townsen | 4 | Son | — | Illinois |
| 71 | Kendall F. Townsen | 2 | Son | — | Illinois |
| 72 | Lester Engle | 31 | Head | Instructor In Geology | Kansas |
| 73 | Edith Jaeger Engle | 30 | Wife | — | Germany |
| 74 | Linda Louise Engle | 0 | Daughter | — | Illinois |
| 75 | John W. Mccammon | 41 | Head | Asst. Bus. Mgr. | Illinois |
| 76 | Bettie Mccammon | 36 | Wife | — | Iowa |
| 77 | Fred M. Jones | 34 | Head | Instructor | Illinois |
| 78 | Ruth B. Jones | 30 | Wife | Secretary | Illinois |
| 79 | R. Ralston Burkhart | 27 | Head | Instructor | Illinois |
| 80 | Wilma H. Burkhart | 27 | Wife | Secretary | Illinois |
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)