JC
John Clarke — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Cook, Illinois
Our Model Tree links this John Clarke across the 1900, 1910 and 1920 US Censuses in Cook, Illinois (XGBoost, ~Confirmed) — first a head (b.~1864), then head of a 6-person household.
Age 56
b. ~1864
Male
Head
Born: Ireland
Married
1920 Census Record Details
| Census Year | 1920 |
| Location | Cook, Illinois |
| Surname | Clarke |
| Given Name | John F |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | Ireland |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Occupation | Chauffeur |
| Industry | Taxi Co |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | 1890 |
| Birth Country | Ireland |
| Year of Naturalization | 1885 |
| Birthplace (normalized) | ireland |
| Occupation | Chauffeur |
| Township / Ward | City Of Chicago |
| Est. Birth Year | ~1864 |
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.
6 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Clarke | Son | — | 26 | ~1894 |
| Margaret Clarke | Daughter | — | 27 | ~1893 |
| Josephine Clarke | Spouse | — | 55 | ~1865 |
| Marie Clarke | Daughter | — | 23 | ~1897 |
| John Clarke | Head | — | 56 | ~1864 |
| Arthur Clarke | Son | — | 29 | ~1891 |
Census Appearances
1900
Cook, Illinois
Head, age 38
Cook, Illinois · implied b. ~1862 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Ireland |
| Birth Month | June |
| Birth Year | 1862 |
| Year of Immigration | 1882 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Steamfitter |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
Head, age 46
Cook, Illinois · implied b. ~1864 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Ireland |
| Years Married | 20 |
| Year of Immigration | 1884 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Chauffeur |
| Industry | Garage |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1920
Cook, Illinois
Head, age 56
Cook, Illinois · implied b. ~1864 — 6 household members
| Surname | Clarke |
| Given Name | John F |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | Ireland |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Chauffeur |
| Industry | Taxi Co |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | 1890 |
| Birth Country | Ireland |
| Year of Naturalization | 1885 |
| Birthplace (normalized) | ireland |
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 John Clarke across 3 US Census years (1900, 1910 and 1920) in Cook, Illinois, using XGBoost record linkage.
Show:
This person
Anchor record
John Clarke
Head · 1920 · age 56 · b. ~1864 · Illinois
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1920 US Federal Census — Cook, Illinois
Open full size
1920 US Federal Census — Cook, Illinois
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu310unit:0949)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Arthur Toppler | 6 | Son | — | Illinois |
| 2 | Dare Toppler | 22 | Son-in-law | Agt | Scotland |
| 3 | Florence Toppler | 22 | Daughter | Clerk | Illinois |
| 4 | Victor Burns | 28 | Head | Sales Mgr. | Illinois |
| 5 | Elinor Burns | 27 | Wife | — | Illinois |
| 6 | Richard Burns | 7 | Son | — | Illinois |
| 7 | Robt. Burns | 3 | Son | — | Illinois |
| 8 | Alex Lutin | 26 | Boarder | Fireman | Illinois |
| 9 | Lillian Tost | 27 | Boarder | Telephone Operator | Illinois |
| 10 | Nellie Wheeler | 52 | Head | — | Wisconsin |
| 11 | Ethel Wheeler | 25 | Daughter | Switch Bd Operator | Illinois |
| 12 | Nellie Wheeler | 17 | Daughter | Telephone Operator | Illinois |
| 13 | Edw. Mansfield | 22 | Boarder | Bookkeeper | Illinois |
| 14 | Rich. Mansfield | 19 | Boarder | Book-Keeper | Illinois |
| 15 | Catherine Mulcaly | 59 | Head | — | New York |
| 16 | Thomas Mulcaly | 34 | Son | Clerk | Illinois |
| 17 | Wm Mulcaly | 32 | Son | Bldg. Laborer | Illinois |
| 18 | Mary Mulcaly | 24 | Daughter | — | Illinois |
| 19 | Lottie Lark | 37 | Head | Clerk | England |
| 20 | Cliss Lark | 14 | Son | — | Illinois |
| 21 | Geo Lark | 11 | Son | — | Colorado |
| 22 | Nellie Hartwell | 30 | Boarder | Singer | England |
| 23 | Geo. Hunt | 65 | Father | Machinist | England |
| 24 | Clementine Hunt | 63 | Mother | — | England |
| 25 | Michael Casey | 44 | Head | Gas Fitter | Ireland |
| 26 | Christine Casey | 34 | Wife | Clerk | Ireland |
| 27 | Joseph Sheehan | 21 | Boarder | Construction Dept | Ireland |
| 28 | Christine Sheehan | 29 | Wife | — | Ireland |
| 29 | Joseph Sheehan | 4 | Son | — | Illinois |
| 30 | Phil Broderick | 60 | Boarder | Clerk | Illinois |
| 31 | Nellie Kelley | 34 | Boarder | Elevated Ry | Ireland |
| 32 | Isadore Schroeder | 60 | Head | Prop. | Hungary |
| 33 | Henrietta Schroeder | 58 | Wife | — | Hungary |
| 34 | Max Schroeder | 33 | Son | Broker | Wisconsin |
| 35 | Ludwig Schroeder | 29 | Son | Broker | Wisconsin |
| 36 | Clara Schroeder | 24 | Daughter-in-law | — | Illinois |
| 37 | Clara Schroeder | 27 | Daughter | Stenographer | Wisconsin |
| 38 | John F Clarke THIS PERSON | 56 | Head | Chauffeur | Ireland |
| 39 | Josephine Clarke | 55 | Wife | — | Ireland |
| 40 | Arthur J Clarke | 29 | Son | Salesman | Illinois |
| 41 | John W Clarke | 26 | Son | Mgr | Illinois |
| 42 | Margaret Clarke | 27 | Daughter | Clerk | Illinois |
| 43 | Marie Clarke | 23 | Daughter | Secretary | Illinois |
| 44 | Oscar Halleck | 47 | Head | Salesman | Russia |
| 45 | Minnie Halleck | 47 | Wife | — | Russia |
| 46 | Sonny Freedman | 21 | Son-in-law | — | Russia |
| 47 | Mrs. M. Freedman | 22 | Daughter | Salesman | Illinois |
| 48 | Sol Halleck | 19 | Son | — | Illinois |
| 49 | Francis Halleck | 13 | Daughter | — | Illinois |
| 50 | Josephine Heume | 59 | Head | — | Illinois |
Related Census Records
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)