MK
Margaret King — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Cook, Illinois
Our Model Tree links this Margaret King across the 1920, 1930 and 1940 US Censuses in Cook, Illinois (XGBoost, ~Confirmed) — first a head (b.~1877), then head of a 5-person household.
Age 53
b. ~1877
Female
Head
Born: Illinois
Widowed
1930 Census Record Details
| Census Year | 1930 |
| Location | Cook, Illinois |
| Surname | King |
| Given Name | Margaret |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 53 |
| Marital Status | Widowed |
| Birthplace | Illinois |
| Age at First Marriage | 19 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Can Read/Write | Yes |
| Home Owned/Rented | 90.00 |
| Home Value / Rent | R |
| Veteran | R |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago |
| Est. Birth Year | ~1877 |
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.
5 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Margaret King | Daughter | — | 24 | ~1906 |
| Katherine O'Brien | Daughter | — | 29 | ~1901 |
| Margaret King | Head | — | 53 | ~1877 |
| Philip O'Brien | Other | — | 32 | ~1898 |
| Wm King | Son | — | 21 | ~1909 |
Census Appearances
1920
Cook, Illinois
Head, age 41
Cook, Illinois · implied b. ~1879 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | King |
| Given Name | Margaret A. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 41 |
| Marital Status | Widowed |
| Birthplace | Illinois |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Office Work |
| Industry | Mail Order |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Head, age 53
Cook, Illinois · implied b. ~1877 — 5 household members
| Surname | King |
| Given Name | Margaret |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 53 |
| Marital Status | Widowed |
| Birthplace | Illinois |
| Age at First Marriage | 19 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read/Write | Yes |
| Home Owned/Rented | 90.00 |
| Home Value / Rent | R |
| Veteran | R |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Other, age 64
Cook-County, Illinois · implied b. ~1876 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | King |
| Given Name | Margaret |
| Relationship to Head | Mother |
| Sex | F |
| Color / Race | White |
| Age | 64 |
| Marital Status | Widowed |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| 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 Margaret King across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Margaret King
Head · 1930 · age 53 · b. ~1877 · Illinois
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Cook, Illinois
Open full size
1930 US Federal Census — Cook, Illinois
Page Contents
50 people indexed on this census page (ia:1930:illinoiscensus00reel463:0116)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Nick Ramos | 40 | Head | Truck Driver | Greece |
| 52 | Ariadne Ramos | 24 | Wife | — | Greece |
| 53 | Jennie Ramos | 8 | Daughter | — | Illinois |
| 54 | Mary Ramos | 7 | Daughter | — | Illinois |
| 55 | Mary Chiso | 60 | Mother-in-law | — | Greece |
| 56 | Louis Ramos | 27 | Nephew | Clerk | Greece |
| 57 | Elmer Ketcham | 54 | Head | Truck Driver | Greece |
| 58 | Mary Ketcham | 47 | Wife | — | Illinois |
| 59 | Leo Ketcham | 26 | Son | Laborer | Illinois |
| 60 | Theo Ketcham | 22 | Son | Truck Driver | Illinois |
| 61 | Patrick Culhane | 45 | Head | Truck Driver | Ireland |
| 62 | Rose Culhane | 47 | Wife | Trimmer | Ireland |
| 63 | John Culhane | 21 | Son | — | Illinois |
| 64 | Ruth Culhane | 17 | Son | Clerk | Illinois |
| 65 | Eileen Culhane | 13 | Daughter | — | Illinois |
| 66 | Francis Culhane | 3 | Son | — | Illinois |
| 67 | Margaret King THIS PERSON | 53 | Head | — | Illinois |
| 68 | Margaret King | 24 | Daughter | Clerk | Washington |
| 69 | Wm. E. King | 21 | Son | Steam Fitter | Illinois |
| 70 | Philip O'Brien | 32 | Son-in-law | Collector | Illinois |
| 71 | Katherine O'Brien | 29 | Daughter | Clerk | Washington |
| 72 | Andrew Neary | 55 | Head | Guard | Ireland |
| 73 | Ellen Neary | 50 | Wife | — | Ireland |
| 74 | Mary Neary | 24 | Daughter | Clerk | Illinois |
| 75 | Michael Cavanaugh | 28 | Nephew | Laborer | Illinois |
| 76 | Milton Mitchell | 68 | Head | — | Illinois |
| 77 | Sarah Mitchell | 62 | Wife | — | Illinois |
| 78 | Ella Mitchell | 25 | Daughter | Superintendent | Illinois |
| 79 | Wendell Mitchell | 22 | Son | Fireman | Illinois |
| 80 | Michael Laraner | 55 | Head | Police Officer | Ireland |
| 81 | Anna Laraner | 54 | Wife | — | Illinois |
| 82 | Mary Laraner | 26 | Daughter | Stenographer | Illinois |
| 83 | John Laraner | 24 | Son | Bookkeeper | Illinois |
| 84 | Mary Laraner | 60 | Sister | Sister Helper | Ireland |
| 85 | E. P. Canfield | 53 | Head | Solicitor | Illinois |
| 86 | Eliz. Canfield | 45 | Wife | — | Illinois |
| 87 | Virginia Canfield | 23 | Daughter | Steno. | Illinois |
| 88 | Ray Canfield | 14 | Son | — | Illinois |
| 89 | Chas. Ham | 54 | Head | Salesman | Illinois |
| 90 | Irene Ham | 44 | Wife | — | New York |
| 91 | Harold Ham | 20 | Son | Chauffeur | Illinois |
| 92 | Marilyn Ham | 18 | Daughter | — | Illinois |
| 93 | Edward O'Brien | 55 | Head | Carrier | Illinois |
| 94 | Nellie O'Brien | 50 | Wife | — | Illinois |
| 95 | Thomas O'Brien | 22 | Son | Stenographer | Illinois |
| 96 | Dr. R. De Rosa | 40 | Head | Physician | Italy |
| 97 | Agnes De Rosa | 30 | Wife | — | Illinois |
| 98 | Francis De Rosa | 11 | Son | — | Illinois |
| 99 | Annette De Rosa | 6 | Daughter | — | Illinois |
| 100 | Lucille De Rosa | 2 | Daughter | — | Illinois |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)