WM
William Morgan — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this William Morgan across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents William & Morris — first a son (b.~1919), then head of a 5-person household.
Age 21
b. ~1919
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Morgan |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Clerk |
| Industry | Automobile Accessories |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 1050 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same Place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Clerk |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1919 |
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 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| William Morgan | Head | — | 47 | ~1893 |
| James Morgan | Son | — | 14 | ~1926 |
| Leo Morgan | Son | — | 18 | ~1922 |
| William Morgan | Son | — | 21 | ~1919 |
| Mary Morgan | Spouse | — | 41 | ~1899 |
Census Appearances
1920
Cook, Illinois
Son, age 1
Cook, Illinois · implied b. ~1919 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Morgan |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Russia |
| Mother's Birthplace | Massachusetts |
| Industry | none |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Son, age 11
Cook, Illinois · implied b. ~1919 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Morgan |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Russia |
| Mother's Birthplace | Russia |
| Occupation | Student |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Son, age 21
Cook-County, Illinois · implied b. ~1919 — 5 household members
| Surname | Morgan |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Occupation | Clerk |
| Industry | Automobile Accessories |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 1050 |
| Highest Grade | Hs 4 |
| 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 William Morgan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father William Morgan (~0.92 confidence) and father Morris Morgan (~0.92 confidence) and mother Mary Morgan (~0.92 confidence) and mother Lillian Morgan (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Morgan
b. ~1893
Source father
● Household
· direct · ~0.92
Father
Morris Morgan
b. ~1890
Source father
● Household
· direct · ~0.92
Mother
Mary Morgan
b. ~1899
Source mother
● Household
· direct · ~0.92
Mother
Lillian Morgan
b. ~1896
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Morgan
Son · 1940 · age 21 · b. ~1919 · Illinois
★ You are viewing this record
Sibling
James Morgan
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leo Morgan
Sibling · 1940 · 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
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-t0627-00954-00844)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Conrad O'Gorman | 10 | Son | — | Illinois |
| 42 | Thomas O'Gorman | 74 | Head | — | Irish Free State |
| 43 | Nora O'Gorman | 69 | Wife | — | Irish Free State |
| 44 | Mary D. O'Gorman | 37 | Daughter | Teacher | Illinois |
| 45 | Thomas O'Gorman | 35 | Son | Plumber | Illinois |
| 46 | Katherine O'Gorman | 27 | Daughter | Teacher | Illinois |
| 47 | William J. Morgan | 47 | Head | Clerk | Illinois |
| 48 | Mary Morgan | 41 | Wife | — | Illinois |
| 49 | William Morgan THIS PERSON | 21 | Son | Clerk | Illinois |
| 50 | Leo Morgan | 18 | Son | — | Illinois |
| 51 | James Morgan | 14 | Son | — | Illinois |
| 52 | Joseph Van Fleet | 48 | Head | Proprietor (Mechanic) | Michigan |
| 53 | Myrtle Van Fleet | 38 | Wife | — | Michigan |
| 54 | Richard Van Fleet | 17 | Son | — | Michigan |
| 55 | Arnold Frenzel | 60 | Head | Electrician | Missouri |
| 56 | Katherine Frenzel | 54 | Wife | — | Missouri |
| 57 | George Frenzel | 21 | Son | Salesman | Illinois |
| 58 | Thomas Jr. Spratt | 29 | Head | Office Manager | Illinois |
| 59 | Julienne Spratt | 27 | Wife | — | Illinois |
| 60 | Judith Lea Spratt | 3 | Daughter | — | Illinois |
| 61 | John Arthur Carlson | 44 | Head | Stationary Fireman | Illinois |
| 62 | Signe Carlson | 40 | Wife | — | Connecticut |
| 63 | Evelyn Carlson | 14 | Daughter | — | Illinois |
| 64 | Margaret (Mrs) Hogan | 78 | Head | — | Illinois |
| 65 | Margaret (Miss) Hogan | 41 | Daughter | Saleslady | Illinois |
| 66 | Peter Smith | 57 | Head | Welder | Austria |
| 67 | Anna Smith | 56 | Wife | — | Austria |
| 68 | John J. Smith | 28 | Son | Salesman | Illinois |
| 69 | Margaret Smith | 23 | Daughter | Beauty Operator | Illinois |
| 70 | Charles Smith | 19 | Son | Bookkeeper | Illinois |
| 71 | Evelyn Smith | 16 | Daughter | — | Illinois |
| 72 | Lee Cohn | 66 | Head | Bookkeeper | Nebraska |
| 73 | Pauline Cohn | 58 | Wife | — | England |
| 74 | Max Cohn | 69 | Brother | Bookkeeper Assistant | Nebraska |
| 75 | Thomas O'Shea | 68 | Head | Foreman | Illinois |
| 76 | Katherine O'Shea | 67 | Wife | — | Illinois |
| 77 | Peter Shannon | 34 | Head | Policeman | Irish Free State |
| 78 | Katherine Shannon | 31 | Wife | — | Illinois |
| 79 | Robert Shannon | 2 | Son | — | Illinois |
| 80 | Gertrude Gehrke | 54 | Head | — | Illinois |
Pedigree Summary
William + 2 siblings
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
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)