KM
Katherine Martin — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Cook, Illinois
Our Model Tree links this Katherine Martin across the 1930 and 1940 US Censuses in Cook, Illinois (XGBoost, ~Confirmed) — first a daughter (b.~1925), then head of a 18-person household.
Age 5
b. ~1925
Female
Daughter
Born: Illinois
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Cook, Illinois |
| Surname | Martin |
| Given Name | Katherine |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | Black |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Georgia |
| Mother's Birthplace | Illinois |
| Additional Details | |
| Occupation | none |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1925 |
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.
18 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Katherine | Age | Birth yr |
|---|---|---|---|---|
| Robert Martin | Son | — | 13 | ~1917 |
| Katherine Martin | Daughter | — | 5 | ~1925 |
| Fred Fong | Other | — | 30 | ~1900 |
| Henderson Martin | Spouse | — | 42 | ~1888 |
| Dorothy Martin | Daughter | — | 12 | ~1918 |
| Mattie Buford | Daughter | — | 15 | ~1915 |
| Fred Moy | Head | — | 50 | ~1880 |
| Cordell Buford | Other | — | — | |
| Walter Martin | Son | — | 11 | ~1919 |
| Henry Martin | Son | — | 18 | ~1912 |
| Naomi Smith | Other | — | 46 | ~1884 |
| Irene Martin | Other | — | 31 | ~1899 |
| Jennine Bass | Other | — | 70 | ~1860 |
| James Smith | Spouse | — | 49 | ~1881 |
| Nellie Capper | Other | — | 54 | ~1876 |
| Felix Buford | Spouse | — | 51 | ~1879 |
| Bessie Martin | Daughter | — | 14 | ~1916 |
| Harry Capper | Spouse | — | 53 | ~1877 |
Census Appearances
1930
Cook, Illinois
Daughter, age 5
Cook, Illinois · implied b. ~1925 — 18 household members
| Surname | Martin |
| Given Name | Katherine |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | Black |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Georgia |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Daughter, age 16
Cook-County, Illinois · implied b. ~1924 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Kern |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Melrose Park |
| 1935 Residence (County) | Cook |
| Class of Worker | 0 |
| Highest Grade | Hs 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 Katherine Martin across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Katherine Martin
Daughter · 1930 · age 5 · b. ~1925 · Illinois
★ You are viewing this record
Sibling
Bessie Martin
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Martin
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mattie Buford
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Walter Martin
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Martin
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Henry Martin
Sibling · 1930 · age 18
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
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:illinoiscensus00reel424:0547)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Fred Moy | 50 | Head | Presser | China-canton |
| 2 | Fred Fong | 30 | roomer | Washer | China |
| 3 | Harry Capper | 53 | Husband | Shirt Maker | Illinois |
| 4 | Nellie Capper | 54 | Wife-H | None | Illinois |
| 5 | Henderson Martin | 42 | Husband | Furnace Operator | Georgia |
| 6 | Irene Martin | 31 | Wife-H | None | Illinois |
| 7 | Bessie May Martin | 14 | Daughter | None | Georgia |
| 8 | Dorothy Martin | 12 | Daughter | None | Illinois |
| 9 | Robert Martin | 13 | son | None | Illinois |
| 10 | Walter Martin | 11 | son | None | Illinois |
| 11 | Katherine Martin THIS PERSON | 5 | daughter | None | Illinois |
| 12 | Henry Martin | 18 | son | None | Georgia |
| 13 | James H. Smith | 49 | Husband | Elevator Operator | Missouri |
| 14 | Naomi B. Smith | 46 | Wife-H | None | Kentucky |
| 15 | Jennine Bass | 70 | mother in law | None | Kentucky |
| 16 | Felix J. Buford | 51 | Husband | Stock Keeper | Kentucky |
| 17 | Cordell Buford | None | wife-H | Teacher | Kentucky |
| 18 | Mattie Buford | 15 | daughter | None | Illinois |
| 19 | Joseph Adams | 41 | Head | Trucker | Texas |
| 20 | Louis Serreale | 36 | roomer | Chauffeur | Louisiana |
| 21 | James Hill | 50 | Husband | Porter | Mississippi |
| 22 | Carrie Hill | 40 | Wife-H | Machine Operator | Mississippi |
| 23 | Isabell Hill | 17 | daughter | None | Mississippi |
| 24 | Aramintha Hill | 9 | daughter | None | Mississippi |
| 25 | Henry J. Hill | 16 | son | None | Mississippi |
| 26 | Barbara Murray | 60 | mother in law | None | Mississippi |
| 27 | Vestella Robinson | 18 | roomer | Machine Operator | Georgia |
| 28 | Chas. Strame | 38 | Husband | Machinist | Kentucky |
| 29 | Narcissus Strame | 35 | Wife-H | None | Kentucky |
| 30 | Benjamin Campbell | 17 | step-son | None | Kentucky |
| 31 | Floskie Riley | 17 | sister in law | None | Kentucky |
| 32 | Joseph Patterson | 22 | foster son | Shipping Clerk | Louisiana |
| 33 | H Young | 45 | roomer | None | U S |
| 34 | Lottie Sargent | 31 | mother | None | South Carolina |
| 35 | Dorothy Mcree | 9 | daughter | None | Illinois |
| 36 | Elmo Hollingsworth | 35 | roomer | Auto Mechanic | Pennsylvania |
| 37 | Sydney Nicholson | 45 | Husband | Carpenter | Louisiana |
| 38 | Emma Nicholson | 36 | Wife-H | Laundress | Louisiana |
| 39 | Sidney Nelson Nicholson | 17 | son | None | Louisiana |
| 40 | Henry Nicholson | 10 | son | None | Louisiana |
| 41 | Helen Nicholson | 5 | daughter | None | Louisiana |
| 42 | William Morgan | 50 | Husband | Shipping Clerk | Ohio |
| 43 | Helen Morgan | 50 | Wife-H | None | Missouri |
| 44 | Edward Jefferson | 52 | Husband | Contractor | Louisiana |
| 45 | Florence Jefferson | 45 | wife-H | Housework | Mississippi |
| 46 | John Smart | 30 | Husband | Dish Washer | Mississippi |
| 47 | Maud Smart | 23 | wife | Cook | Mississippi |
| 48 | Albert Brumfield | 20 | lodger | Dish Washer | Mississippi |
| 49 | Andy Brumfield | 22 | brother | Carpenter | Mississippi |
| 50 | Nancy Noble | 60 | mother in law | None | Mississippi |
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)