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Sarah Kennedy — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Mchenry-County, Illinois
Our Model Tree links this Sarah Kennedy across the 1930 and 1940 US Censuses in Mchenry-County, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1887), then head of a 7-person household.
Age 53
b. ~1887
Female
Spouse
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Mchenry-County, Illinois |
| Surname | Kennedy |
| Given Name | Sarah |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Harvard City |
| 1935 Residence (County) | McHenry |
| Additional Details | |
| Occupation | Housewife |
| Hours Worked | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Housewife |
| Township / Ward | Harvard City |
| Est. Birth Year | ~1887 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Sarah | Age | Birth yr |
|---|---|---|---|---|
| Harold Kennedy | Son | — | 18 | ~1922 |
| Raymond Kennedy | Son | — | 27 | ~1913 |
| Margaret Kennedy | Daughter | — | 23 | ~1917 |
| Louis Kennedy | Head | — | 52 | ~1888 |
| Florence Kennedy | Daughter | — | 15 | ~1925 |
| Marilyn Kennedy | Daughter | — | 20 | ~1920 |
| Sarah Kennedy | Spouse | — | 53 | ~1887 |
Census Appearances
1930
Mchenry, Illinois
Other, age 43
Mchenry, Illinois · implied b. ~1887 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kennedy |
| Given Name | Sarah |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 23 |
| Father's Birthplace | Northern Ireland |
| Mother's Birthplace | Northern Ireland |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Mchenry-County, Illinois
Spouse, age 53
Mchenry-County, Illinois · implied b. ~1887 — 7 household members
| Surname | Kennedy |
| Given Name | Sarah |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Harvard City |
| 1935 Residence (County) | McHenry |
| Occupation | Housewife |
| Hours Worked | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 Sarah Kennedy across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Sarah Kennedy
Spouse · 1940 · age 53 · b. ~1887 · 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 — Mchenry-County, Illinois
Open full size
1940 US Federal Census — Mchenry-County, Illinois
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-00840-00344)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Sidney Barr | 42 | Head | Decorator | Liverpool, Eng |
| 42 | June Barr | 40 | Wife | Assistant Clerk | Illinois |
| 43 | George Ratzlaff | 52 | Head | Machinist | Harvard, Ill |
| 44 | Rodney Ratzlaff | 17 | Son | — | Harvard, Ill |
| 45 | Maynard Johnson | 35 | Lodger | Labour | Capron, Ill |
| 46 | Louis Kennedy | 52 | Head | Night Watchman | Illinois |
| 47 | Sarah Kennedy THIS PERSON | 53 | Wife | Housewife | Illinois |
| 48 | Raymond Kennedy | 27 | Son | Sewing | Harvard, Ill |
| 49 | Margaret Kennedy | 23 | Daughter | Sewing | Harvard, Ill |
| 50 | Marilyn Kennedy | 20 | Daughter | Housework | Harvard, Ill |
| 51 | Harold Kennedy | 18 | Son | In School | Harvard, Ill |
| 52 | Florence Kennedy | 15 | Daughter | In School | Harvard, Ill |
| 53 | Michael Bradley | 29 | Head | Truck Driver | Lake Geneva, Wis |
| 54 | Margaret Bradley | 27 | Wife | Waitress | Hartland, Ill |
| 55 | John Munger | 32 | Head | Buffer | Harvard, Ill |
| 56 | Joyce Munger | 20 | Wife | Housewife | Walworth, Wis |
| 57 | Millie Ferris | 60 | Head | Unable To Work | Hebron, Ill |
| 58 | Myrna Curtis | 42 | Nurse | Nurse | Madison, Wis |
| 59 | Victoria Galzcko | 21 | Maid | Maid | St. Paul, Minn |
| 60 | John Lang | 76 | Head | Caretaker | Jefferson, Wis |
| 61 | Martha Lang | 52 | Wife | Housewife | Kildare, Wis |
| 62 | Roland Pembroke | 27 | Head | Retail Manager | Harvard, Ill |
| 63 | Edna Pembroke | 29 | Wife | Stenographer | Lake Geneva, Wis |
| 64 | John Fercus | 70 | Head | Retired | Charles City, Ia |
| 65 | Nell Fercus | 56 | Wife | Housewife | Bangor, S.D. |
| 66 | Louis Sippley | 24 | Step-son | Polisher | Harvard, Ill |
| 67 | Francis Sippley | 21 | Daughter-in-law | Stenographer | Harvard, Ill |
| 68 | Ray J. Ruley | 51 | Head | Baker | Dell, Ill |
| 69 | Louise Ruley | 52 | Wife | Helper | Helena, Ohio |
| 70 | Floyd Earl | 59 | Head | Insurance | Hebron, Ill |
| 71 | William Earl | 24 | Son | Inspector | Harvard, Ill |
| 72 | John Earl | 18 | Son | Assembly Room | Harvard, Ill |
| 73 | Lorraine Earl | 21 | Daughter | Housekeeper | Harvard, Ill |
| 74 | Jean Earl | 15 | Daughter | In School | Harvard, Ill |
| 75 | Orson Woodcock | 42 | Head | Signal Maintainer | Lake Bluff, Ill |
| 76 | Edna Woodcock | 33 | Wife | Housewife | Ruds City, Mich |
| 77 | Betty Woodcock | 14 | Daughter | In School | Lake Bluff, Ill |
| 78 | Eugene Woodcock | 12 | Son | In School | West Chicago, Ill |
| 79 | Edward Woodcock | 9 | Son | In School | Harvard, Ill |
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)