KM
Katherine Martin — 1930 US Census Record
Model Tree available1930 United States Federal Census · Cook, Illinois
Our Model Tree links this Katherine Martin across the 1910, 1920 and 1930 US Censuses in Cook, Illinois (XGBoost, ~Confirmed), with identified parents Daniel & Matthew — first a daughter (b.~1905), then head of a 2-person household.
Age 25
b. ~1905
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 | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Vermont |
| Mother's Birthplace | Illinois |
| Additional Details | |
| Occupation | Teacher |
| Industry | Public School |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Teacher |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1905 |
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.
2 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Katherine | Age | Birth yr |
|---|---|---|---|---|
| Katherine Martin | Daughter | — | 25 | ~1905 |
| Clara Martin | Head | — | 64 | ~1866 |
Census Appearances
1910
Cook, Illinois
Daughter, age 5
Cook, Illinois · implied b. ~1905 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Katherine R |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | New England |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1920
Cook, Illinois
Daughter, age 15
Cook, Illinois · implied b. ~1905 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Katherine |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Vermont |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Daughter, age 25
Cook, Illinois · implied b. ~1905 — 2 household members
| Surname | Martin |
| Given Name | Katherine |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Vermont |
| Mother's Birthplace | Illinois |
| Occupation | Teacher |
| Industry | Public School |
| Class of Worker | W |
| Can Read/Write | Yes |
| 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 3 US Census years (1910, 1920 and 1930) in Cook, Illinois, using XGBoost record linkage. Identified parents: father Daniel Martin (~0.92 confidence) and father Matthew Martin (~0.92 confidence) and mother Clara Martin (~0.92 confidence) and mother Clara Martin (~0.92 confidence) and mother Isabel Martin (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Daniel Martin
b. ~1853
Source father
● Household
· direct · ~0.92
Father
Matthew Martin
b. ~1872
Source father
● Household
· direct · ~0.92
Mother
Clara Martin
b. ~1866
Source mother
● Household
· direct · ~0.92
Mother
Clara Martin
b. ~1867
Source mother
● Household
· direct · ~0.92
Mother
Isabel Martin
b. ~1875
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Katherine Martin
Daughter · 1930 · age 25 · b. ~1905 · Illinois
★ You are viewing this record
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:illinoiscensus00reel431:0532)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Herbert N White | 34 | Head | Pharmacist | Indiana |
| 2 | Ida White | 34 | Wife | — | Illinois |
| 3 | Elizabeth Behrens | 71 | Mother-in-law | — | Missouri |
| 4 | Harry Bigler | 38 | Head | Salesman | Illinois |
| 5 | Lesta Bigler | 35 | Wife | — | Illinois |
| 6 | Ruth Bigler | 12 | Daughter | — | Illinois |
| 7 | Hal Bigler | 9 | Son | — | Illinois |
| 8 | Victor Bigler | 25 | Brother | Cashier | Illinois |
| 9 | Vernon W Hake | 36 | Head | Chemist | Illinois |
| 10 | Eulalia Hake | 36 | Wife | — | Illinois |
| 11 | Milburn Hake | 13 | Son | — | Illinois |
| 12 | Amy J Hake | 11 | Daughter | — | Michigan |
| 13 | Adela Hake | 9 | Daughter | — | Michigan |
| 14 | Andrew Piech | 34 | Head | Carpenter | Poland |
| 15 | Josephine Piech | 30 | Wife | — | Illinois |
| 16 | Irene Piech | 13 | Daughter | — | Illinois |
| 17 | Chester Piech | 8 | Son | — | Illinois |
| 18 | John Lander | 34 | Head | Superintendent | Maine |
| 19 | Mabel Lander | 32 | Wife | — | Illinois |
| 20 | John Lander | 4 | Son | — | Illinois |
| 21 | Eleanor Lander | 3 | Daughter | — | Illinois |
| 22 | Frank Lander | 2 | Son | — | Illinois |
| 23 | Florence Hopkins | 28 | Sister-in-law | Operator | Illinois |
| 24 | Clara C Martin | 64 | Head | — | Illinois |
| 25 | Katherine Martin THIS PERSON | 25 | Daughter | Teacher | Illinois |
| 26 | Herbert J Adams | 44 | Head | Salesman | Michigan |
| 27 | Dora Adams | 43 | Wife | — | Illinois |
| 28 | Merle W Adams | 14 | Son | — | Illinois |
| 29 | Chester Chmielewski | 33 | Head | Barber | Poland |
| 30 | Clara Chmielewski | 31 | Wife | — | Illinois |
| 31 | Gladys Chmielewski | 5 | Daughter | — | Illinois |
| 32 | John Kusmerik | 32 | Head | Service Station | New Jersey |
| 33 | Gertrude Kusmerik | 30 | Wife | — | Nebraska |
| 34 | George Hillenbrand | 63 | Head | Upholsterer | Kentucky |
| 35 | Hulda Hillenbrand | 55 | Wife | — | Germany |
| 36 | Emelia Hammesfahr | 50 | Sister-in-law | — | Germany |
| 37 | Charles Baal | 71 | Head | — | England |
| 38 | Susan Baal | 70 | Wife | — | England |
| 39 | Everett G Ragey | 47 | Son-in-law | Machinist | New York |
| 40 | Ethel G Ragey | 43 | Daughter | — | Illinois |
| 41 | Howard Nicholls | 41 | Head | Contractor | Illinois |
| 42 | Emelia Nicholls | 37 | Wife | — | Illinois |
| 43 | Howard Jr Nicholls | 19 | Son | Clerical | Illinois |
| 44 | Ruth Nicholls | 18 | Daughter | Operator | Illinois |
| 45 | George Low | 53 | Head | Engineer | Indiana |
| 46 | Leila Low | 52 | Wife | — | Indiana |
| 47 | Katherine Low | 24 | Daughter | Proof Reader | Illinois |
| 48 | Freeman Hess | 41 | Head | Salesman | Illinois |
| 49 | Bertha Hess | 40 | Wife | — | Wisconsin |
| 50 | Susanne Hess | 11 | Daughter | — | Illinois |
Pedigree Summary
Katherine
Gen 1 · 5 parents
~0.92
Max depth 4 (1900–1950 window)
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)