JM
John Morrow — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this John Morrow across the 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a son (b.~1924), then head of a 10-person household.
Age 16
b. ~1924
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Morrow |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Hours Worked | 0 |
| Highest Grade | Hs 1 |
| 1935 Residence | Same house |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1924 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Morrow | Son | — | 16 | ~1924 |
| Eileen Morrow | Daughter | — | 11 | ~1929 |
| Kenneth Morrow | Son | — | 13 | ~1927 |
| Elizabeth Morrow | Spouse | — | 43 | ~1897 |
| Mary Morrow | Daughter | — | 6 | ~1934 |
| Donald Morrow | Son | — | 10 | ~1930 |
| Elizabeth Morrow | Daughter | — | 17 | ~1923 |
| Charles Morrow | Head | — | 45 | ~1895 |
| Michael Morrow | Son | — | 12 | ~1928 |
| Patricia Morrow | Daughter | — | 8 | ~1932 |
Census Appearances
1930
Cook, Illinois
Son, age 1
Cook, Illinois · implied b. ~1929 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Morrow |
| Given Name | Joe Willie |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Mississippi |
| Mother's Birthplace | Mississippi |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Son, age 16
Cook-County, Illinois · implied b. ~1924 — 10 household members
| Surname | Morrow |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Hours Worked | 0 |
| Highest Grade | Hs 1 |
| 1935 Residence | Same house |
| 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 John Morrow across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Morrow
Son · 1940 · age 16 · b. ~1924 · Illinois
★ You are viewing this record
Sibling
Mary Morrow
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eileen Morrow
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elizabeth Morrow
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Kenneth Morrow
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patricia Morrow
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donald Morrow
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Michael Morrow
Sibling · 1940 · age 12
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
1940 US Federal Census — Cook-County, Illinois
Open full size
1940 US Federal Census — Cook-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00956-01009)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Edna Zuryhynen | 5 | Daughter | — | Illinois |
| 2 | Gerrit Schipman | 74 | Head | — | Holland |
| 3 | Ann Schipman | 74 | Wife | — | Holland |
| 4 | Austin E. Maher | 46 | Head | Clerk | Iowa |
| 5 | Frances Maher | 46 | Wife | Proprietor | Illinois |
| 6 | Matilda Comerford | 69 | Mother-in-law | — | Illinois |
| 7 | Thilda A. Nelson | 75 | Head | — | Sweden |
| 8 | Arthur Nelson | 40 | Son | Timekeeper | Illinois |
| 9 | Clara Nelson | 38 | Daughter | Housework | Illinois |
| 10 | Charles L. Morrow | 45 | Head | Clerk | Illinois |
| 11 | Elizabeth M. Morrow | 43 | Wife | — | Michigan |
| 12 | Elizabeth A. Morrow | 17 | Daughter | — | Illinois |
| 13 | John Morrow THIS PERSON | 16 | Son | — | Illinois |
| 14 | Kenneth Morrow | 13 | Son | — | Illinois |
| 15 | Michael Morrow | 12 | Son | — | Illinois |
| 16 | Eileen Morrow | 11 | Daughter | — | Illinois |
| 17 | Donald Morrow | 10 | Son | — | California |
| 18 | Patricia Morrow | 8 | Daughter | — | Illinois |
| 19 | Mary Morrow | 6 | Daughter | — | Illinois |
| 20 | Richard Lucy | 33 | Head | Bridge Tender | Illinois |
| 21 | Catherine Lucy | 33 | Wife | — | Illinois |
| 22 | Richard Jr. Lucy | 7 | Son | — | Illinois |
| 23 | Janet Lucy | 6 | Daughter | — | Illinois |
| 24 | Marilyn Lucy | 3 | Daughter | — | Illinois |
| 25 | Geraldine Lucy | 1 | Daughter | — | Illinois |
| 26 | William Mccarthy | 35 | Brother-in-law | — | Illinois |
| 27 | Jerry Mccarthy | 31 | Brother-in-law | Laborer | Illinois |
| 28 | Janette Hagis | 49 | Head | Housework | Illinois |
| 29 | John Powers | 50 | Lodger | Proprietor | Illinois |
| 30 | Embrose Olgiati | 35 | Lodger | Bartender | Illinois |
| 31 | William Heinlein | 72 | Head | Clerk | Illinois |
| 32 | Grace Heinlein | 74 | Wife | — | Ohio |
| 33 | Clarence Heinlein | 31 | Son | Laborer Clerk | Illinois |
| 34 | Leslie Heinlein | 35 | Head | Bookkeeper | Illinois |
| 35 | Selda Heinlein | 36 | Wife | — | Illinois |
| 36 | Leslie Jr. Heinlein | 8 | Son | — | Illinois |
| 37 | William Heinlein | 2 | Son | — | Illinois |
| 38 | Tony Lorenzatti | 33 | Head | Welder | Illinois |
| 39 | Irma Lorenzatti | 45 | Wife | Proprietor | Illinois |
| 40 | Mary Heinlein | 77 | Head | — | Illinois |
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)